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| <pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *******************************************************************************<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Copyright (c) 2011, 2016 Diamond Light Source Ltd.<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * Contributors:<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * Peter Chang - initial API and implementation and/or initial documentation<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *******************************************************************************/<a name="line.11"></a> |
| <span class="sourceLineNo">012</span><a name="line.12"></a> |
| <span class="sourceLineNo">013</span>package org.eclipse.january.dataset;<a name="line.13"></a> |
| <span class="sourceLineNo">014</span><a name="line.14"></a> |
| <span class="sourceLineNo">015</span>import java.util.ArrayList;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span>import java.util.Arrays;<a name="line.16"></a> |
| <span class="sourceLineNo">017</span>import java.util.Collection;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.util.Iterator;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.util.List;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.eclipse.january.dataset.Comparisons.Monotonicity;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>/**<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * Mathematics class<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> */<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>public class Maths extends GeneratedMaths {<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> /**<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * Unwrap result from mathematical methods if necessary<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * @param o<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * @param a<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * @return a dataset if a is a dataset or an object of the same class as o<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> */<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> public static Object unwrap(final Dataset o, final Object a) {<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> return a instanceof Dataset ? o : o.getObjectAbs(o.getOffset());<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> }<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> /**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Unwrap result from mathematical methods if necessary<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * @param o<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @param a<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @return a dataset if either a and b are datasets or an object of the same class as o<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> */<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> public static Object unwrap(final Dataset o, final Object a, final Object b) {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> return (a instanceof Dataset || b instanceof Dataset) ? o : o.getObjectAbs(o.getOffset());<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> }<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> /**<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * Unwrap result from mathematical methods if necessary<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * @param o<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * @param a<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * @return a dataset if any inputs are datasets or an object of the same class as o<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public static Object unwrap(final Dataset o, final Object... a) {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> boolean isAnyDataset = false;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> for (Object obj : a) {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> if (obj instanceof Dataset) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> isAnyDataset = true;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> break;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> }<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> return isAnyDataset ? o : o.getObjectAbs(o.getOffset());<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> }<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> /**<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * @param a<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * @param b<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * @return floor divide of a and b<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> */<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> public static Dataset floorDivide(final Object a, final Object b) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> return floorDivide(a, b, null);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> }<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * @param a<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * @param b<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * @param o output can be null - in which case, a new dataset is created<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * @return floor divide of a and b<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> */<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public static Dataset floorDivide(final Object a, final Object b, final Dataset o) {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> return divideTowardsFloor(a, b, o).ifloor();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> /**<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * @param a<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * @param b<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * @return floor remainder of a and b<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> */<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public static Dataset floorRemainder(final Object a, final Object b) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> return floorRemainder(a, b, null);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> /**<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * @param a<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * @param b<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * @param o output can be null - in which case, a new dataset is created<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * @return floor remainder of a and b<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> */<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public static Dataset floorRemainder(final Object a, final Object b, final Dataset o) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> Dataset db = b instanceof Dataset ? (Dataset) b : DatasetFactory.createFromObject(b);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> Dataset dq = floorDivide(da, db);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> dq.imultiply(db);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> return subtract(da, dq, o);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> /**<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * Find reciprocal from dataset<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param a<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @return reciprocal dataset<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> */<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public static Dataset reciprocal(final Object a) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> return reciprocal(a, null);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> /**<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * Find reciprocal from dataset<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * @param a<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @param o output can be null - in which case, a new dataset is created<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @return reciprocal dataset<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> */<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> public static Dataset reciprocal(final Object a, final Dataset o) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return divide(1, da, o);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> /**<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * abs - absolute value of each element<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * @param a<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> * @return dataset<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> */<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> public static Dataset abs(final Object a) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> return abs(a, null);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> /**<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * abs - absolute value of each element<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param a<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @param o output can be null - in which case, a new dataset is created<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * @return dataset<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> */<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> public static Dataset abs(final Object a, final Dataset o) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> final SingleInputBroadcastIterator it = new SingleInputBroadcastIterator(da, o, true, true, false);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> final Dataset result = it.getOutput();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> final int is = result.getElementsPerItem();<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> final int dt = result.getDType();<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> final int as = da.getElementsPerItem();<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> <a name="line.148"></a> |
| <span class="sourceLineNo">149</span> switch(dt) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> case Dataset.INT8:<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> final byte[] oi8data = ((ByteDataset) result).data;<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> it.setOutputDouble(false);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> <a name="line.153"></a> |
| <span class="sourceLineNo">154</span> while (it.hasNext()) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> oi8data[it.oIndex] = (byte) Math.abs(it.aLong);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> break;<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> case Dataset.INT16:<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> final short[] oi16data = ((ShortDataset) result).data;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> it.setOutputDouble(false);<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> <a name="line.161"></a> |
| <span class="sourceLineNo">162</span> while (it.hasNext()) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> oi16data[it.oIndex] = (short) Math.abs(it.aLong);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> break;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> case Dataset.INT32:<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> final int[] oi32data = ((IntegerDataset) result).data;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> it.setOutputDouble(false);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> <a name="line.169"></a> |
| <span class="sourceLineNo">170</span> while (it.hasNext()) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> oi32data[it.oIndex] = (int) Math.abs(it.aLong);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> break;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> case Dataset.INT64:<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> final long[] oi64data = ((LongDataset) result).data;<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> it.setOutputDouble(false);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> <a name="line.177"></a> |
| <span class="sourceLineNo">178</span> while (it.hasNext()) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> oi64data[it.oIndex] = Math.abs(it.aLong);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> break;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> case Dataset.ARRAYINT8:<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> final byte[] oai8data = ((CompoundByteDataset) result).data;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> it.setOutputDouble(false);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> <a name="line.185"></a> |
| <span class="sourceLineNo">186</span> if (is == 1) {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> while (it.hasNext()) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> oai8data[it.oIndex] = (byte) Math.abs(it.aLong);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> } else if (as == 1) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> while (it.hasNext()) {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> byte ox = (byte) Math.abs(it.aLong);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> for (int j = 0; j < is; j++) {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> oai8data[it.oIndex + j] = ox;<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> } else {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> while (it.hasNext()) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> oai8data[it.oIndex] = (byte) Math.abs(it.aLong);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> for (int j = 1; j < is; j++) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> oai8data[it.oIndex + j] = (byte) Math.abs(da.getElementLongAbs(it.aIndex + j));<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> break;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> case Dataset.ARRAYINT16:<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> final short[] oai16data = ((CompoundShortDataset) result).data;<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> it.setOutputDouble(false);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> <a name="line.209"></a> |
| <span class="sourceLineNo">210</span> if (is == 1) {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> while (it.hasNext()) {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> oai16data[it.oIndex] = (short) Math.abs(it.aLong);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> }<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> } else if (as == 1) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> while (it.hasNext()) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> short ox = (short) Math.abs(it.aLong);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> for (int j = 0; j < is; j++) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> oai16data[it.oIndex + j] = ox;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> }<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> } else {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> while (it.hasNext()) {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> oai16data[it.oIndex] = (short) Math.abs(it.aLong);<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> for (int j = 1; j < is; j++) {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> oai16data[it.oIndex + j] = (short) Math.abs(da.getElementLongAbs(it.aIndex + j));<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> break;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> case Dataset.ARRAYINT32:<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> final int[] oai32data = ((CompoundIntegerDataset) result).data;<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> it.setOutputDouble(false);<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> <a name="line.233"></a> |
| <span class="sourceLineNo">234</span> if (is == 1) {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> while (it.hasNext()) {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> oai32data[it.oIndex] = (int) Math.abs(it.aLong);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> } else if (as == 1) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> while (it.hasNext()) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> int ox = (int) Math.abs(it.aLong);<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> for (int j = 0; j < is; j++) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> oai32data[it.oIndex + j] = ox;<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> }<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> } else {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> while (it.hasNext()) {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> oai32data[it.oIndex] = (int) Math.abs(it.aLong);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> for (int j = 1; j < is; j++) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> oai32data[it.oIndex + j] = (int) Math.abs(da.getElementLongAbs(it.aIndex + j));<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> break;<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> case Dataset.ARRAYINT64:<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> final long[] oai64data = ((CompoundLongDataset) result).data;<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> it.setOutputDouble(false);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> <a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (is == 1) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> while (it.hasNext()) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> oai64data[it.oIndex] = Math.abs(it.aLong);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> } else if (as == 1) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> while (it.hasNext()) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> long ox = Math.abs(it.aLong);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> for (int j = 0; j < is; j++) {<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> oai64data[it.oIndex + j] = ox;<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> }<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> } else {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> while (it.hasNext()) {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> oai64data[it.oIndex] = Math.abs(it.aLong);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> for (int j = 1; j < is; j++) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> oai64data[it.oIndex + j] = Math.abs(da.getElementLongAbs(it.aIndex + j));<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> break;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> case Dataset.FLOAT32:<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> final float[] of32data = ((FloatDataset) result).data;<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> if (as == 1) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> while (it.hasNext()) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> of32data[it.oIndex] = (float) (Math.abs(it.aDouble));<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> } else {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> while (it.hasNext()) {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> of32data[it.oIndex] = (float) (Math.hypot(it.aDouble, da.getElementDoubleAbs(it.aIndex + 1)));<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> }<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> <a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> break;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> case Dataset.FLOAT64:<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> final double[] of64data = ((DoubleDataset) result).data;<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> if (as == 1) {<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> while (it.hasNext()) {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> of64data[it.oIndex] = Math.abs(it.aDouble);<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> } else {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> while (it.hasNext()) {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> of64data[it.oIndex] = Math.hypot(it.aDouble, da.getElementDoubleAbs(it.aIndex + 1));<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> break;<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> case Dataset.ARRAYFLOAT32:<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> final float[] oaf32data = ((CompoundFloatDataset) result).data;<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> if (is == 1) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> while (it.hasNext()) {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> oaf32data[it.oIndex] = (float) (Math.abs(it.aDouble));<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> }<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> } else if (as == 1) {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> while (it.hasNext()) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> float ox = (float) (Math.abs(it.aDouble));<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> for (int j = 0; j < is; j++) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> oaf32data[it.oIndex + j] = ox;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> }<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> } else {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> while (it.hasNext()) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> oaf32data[it.oIndex] = (float) Math.abs(it.aDouble);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> for (int j = 1; j < is; j++) {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> oaf32data[it.oIndex + j] = (float) Math.abs(da.getElementDoubleAbs(it.aIndex + j));<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> }<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> break;<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> case Dataset.ARRAYFLOAT64:<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> final double[] oaf64data = ((CompoundDoubleDataset) result).data;<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> if (is == 1) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> while (it.hasNext()) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> oaf64data[it.oIndex] = Math.abs(it.aDouble);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> } else if (as == 1) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> while (it.hasNext()) {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> final double ix = it.aDouble;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> double ox = Math.abs(ix);<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> for (int j = 0; j < is; j++) {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> oaf64data[it.oIndex + j] = ox;<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> }<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> } else {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> while (it.hasNext()) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> oaf64data[it.oIndex] = Math.abs(it.aDouble);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> for (int j = 1; j < is; j++) {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> oaf64data[it.oIndex + j] = Math.abs(da.getElementDoubleAbs(it.aIndex + j));<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> break;<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> case Dataset.COMPLEX64:<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> final float[] oc64data = ((ComplexFloatDataset) result).data;<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> if (as == 1) {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> while (it.hasNext()) {<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> oc64data[it.oIndex] = (float) Math.abs(it.aDouble);<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> } else {<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> while (it.hasNext()) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> oc64data[it.oIndex] = (float) Math.hypot(it.aDouble, da.getElementDoubleAbs(it.aIndex + 1));<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> }<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> break;<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> case Dataset.COMPLEX128:<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> final double[] oc128data = ((ComplexDoubleDataset) result).data;<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> if (as == 1) {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> while (it.hasNext()) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> oc128data[it.oIndex] = Math.abs(it.aDouble);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> }<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> } else {<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> while (it.hasNext()) {<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> oc128data[it.oIndex] = Math.hypot(it.aDouble, da.getElementDoubleAbs(it.aIndex + 1));<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> }<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> }<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> break;<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> default:<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> throw new IllegalArgumentException("abs supports integer, compound integer, real, compound real, complex datasets only");<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> }<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> <a name="line.375"></a> |
| <span class="sourceLineNo">376</span> addFunctionName(result, "abs");<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> return result;<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> }<a name="line.378"></a> |
| <span class="sourceLineNo">379</span><a name="line.379"></a> |
| <span class="sourceLineNo">380</span> /**<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> * @param a<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> * @return a^*, complex conjugate of a<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> */<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> public static Dataset conjugate(final Object a) {<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> return conjugate(a, null);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> /**<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * @param a<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> * @param o output can be null - in which case, a new dataset is created<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> * @return a^*, complex conjugate of a<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> */<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> public static Dataset conjugate(final Object a, final Dataset o) {<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> int at = da.getDType();<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> IndexIterator it1 = da.getIterator();<a name="line.396"></a> |
| <span class="sourceLineNo">397</span><a name="line.397"></a> |
| <span class="sourceLineNo">398</span> SingleInputBroadcastIterator it = new SingleInputBroadcastIterator(da, o, true, true, true);<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> Dataset result = it.getOutput();<a name="line.399"></a> |
| <span class="sourceLineNo">400</span><a name="line.400"></a> |
| <span class="sourceLineNo">401</span> switch (at) {<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> case Dataset.COMPLEX64:<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> float[] c64data = ((ComplexFloatDataset) result).getData();<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> for (int i = 0; it1.hasNext();) {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> c64data[i++] = (float) da.getElementDoubleAbs(it1.index);<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> c64data[i++] = (float) -da.getElementDoubleAbs(it1.index+1);<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> result.setName(Operations.bracketIfNecessary(da.getName()).append("^*").toString());<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> break;<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> case Dataset.COMPLEX128:<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> double[] c128data = ((ComplexDoubleDataset) result).getData();<a name="line.412"></a> |
| <span class="sourceLineNo">413</span><a name="line.413"></a> |
| <span class="sourceLineNo">414</span> for (int i = 0; it1.hasNext();) {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> c128data[i++] = da.getElementDoubleAbs(it1.index);<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> c128data[i++] = -da.getElementDoubleAbs(it1.index+1);<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> result.setName(Operations.bracketIfNecessary(da.getName()).append("^*").toString());<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> break;<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> default:<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> result = da;<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> }<a name="line.422"></a> |
| <span class="sourceLineNo">423</span><a name="line.423"></a> |
| <span class="sourceLineNo">424</span> return result;<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> }<a name="line.425"></a> |
| <span class="sourceLineNo">426</span><a name="line.426"></a> |
| <span class="sourceLineNo">427</span> /**<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> * @param a side of right-angled triangle<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> * @param b side of right-angled triangle<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> * @return hypotenuse of right-angled triangle: sqrt(a^2 + a^2)<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> */<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> public static Dataset hypot(final Object a, final Object b) {<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> return hypot(a, b, null);<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> }<a name="line.434"></a> |
| <span class="sourceLineNo">435</span><a name="line.435"></a> |
| <span class="sourceLineNo">436</span> /**<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * @param a side of right-angled triangle<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> * @param b side of right-angled triangle<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> * @param o output can be null - in which case, a new dataset is created<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> * @return hypotenuse of right-angled triangle: sqrt(a^2 + a^2)<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> */<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> public static Dataset hypot(final Object a, final Object b, final Dataset o) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> final Dataset db = b instanceof Dataset ? (Dataset) b : DatasetFactory.createFromObject(b);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span><a name="line.445"></a> |
| <span class="sourceLineNo">446</span> final BroadcastIterator it = BroadcastIterator.createIterator(da, db, o, true);<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> final Dataset result = it.getOutput();<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> final int is = result.getElementsPerItem();<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> final int as = da.getElementsPerItem();<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> final int bs = db.getElementsPerItem();<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> final int dt = result.getDType();<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> switch (dt) {<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> case Dataset.BOOL:<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> boolean[] bdata = ((BooleanDataset) result).getData();<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> while (it.hasNext()) {<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> bdata[it.oIndex] = Math.hypot(it.aDouble, it.bDouble) != 0;<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> }<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> break;<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> case Dataset.INT8:<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> byte[] i8data = ((ByteDataset) result).getData();<a name="line.461"></a> |
| <span class="sourceLineNo">462</span><a name="line.462"></a> |
| <span class="sourceLineNo">463</span> while (it.hasNext()) {<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> i8data[it.oIndex] = (byte) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> }<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> break;<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> case Dataset.INT16:<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> short[] i16data = ((ShortDataset) result).getData();<a name="line.468"></a> |
| <span class="sourceLineNo">469</span><a name="line.469"></a> |
| <span class="sourceLineNo">470</span> while (it.hasNext()) {<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> i16data[it.oIndex] = (short) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> break;<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> case Dataset.INT32:<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> int[] i32data = ((IntegerDataset) result).getData();<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> <a name="line.476"></a> |
| <span class="sourceLineNo">477</span> while (it.hasNext()) {<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> i32data[it.oIndex] = (int) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> }<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> break;<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> case Dataset.INT64:<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> long[] i64data = ((LongDataset) result).getData();<a name="line.482"></a> |
| <span class="sourceLineNo">483</span><a name="line.483"></a> |
| <span class="sourceLineNo">484</span> while (it.hasNext()) {<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> i64data[it.oIndex] = toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> }<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> break;<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> case Dataset.FLOAT32:<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> float[] f32data = ((FloatDataset) result).getData();<a name="line.489"></a> |
| <span class="sourceLineNo">490</span><a name="line.490"></a> |
| <span class="sourceLineNo">491</span> while (it.hasNext()) {<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> f32data[it.oIndex] = (float) Math.hypot(it.aDouble, it.bDouble);<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> }<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> break;<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> case Dataset.FLOAT64:<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> double[] f64data = ((DoubleDataset) result).getData();<a name="line.496"></a> |
| <span class="sourceLineNo">497</span><a name="line.497"></a> |
| <span class="sourceLineNo">498</span> while (it.hasNext()) {<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> f64data[it.oIndex] = Math.hypot(it.aDouble, it.bDouble);<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> }<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> break;<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> case Dataset.ARRAYINT8:<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> byte[] ai8data = ((CompoundByteDataset) result).getData();<a name="line.503"></a> |
| <span class="sourceLineNo">504</span><a name="line.504"></a> |
| <span class="sourceLineNo">505</span> if (is == 1) {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> while (it.hasNext()) {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> ai8data[it.oIndex] = (byte) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> } else if (as == 1) {<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> while (it.hasNext()) {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> ai8data[it.oIndex] = (byte) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> for (int j = 1; j < is; j++) {<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> ai8data[it.oIndex + j] = (byte) toLong(Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> }<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> } else if (bs == 1) {<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> while (it.hasNext()) {<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> ai8data[it.oIndex] = (byte) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> for (int j = 1; j < is; j++) {<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> ai8data[it.oIndex + j] = (byte) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> }<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> }<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> } else {<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> while (it.hasNext()) {<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> ai8data[it.oIndex] = (byte) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> for (int j = 1; j < is; j++) {<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> ai8data[it.oIndex + j] = (byte) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> }<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> break;<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> case Dataset.ARRAYINT16:<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> short[] ai16data = ((CompoundShortDataset) result).getData();<a name="line.533"></a> |
| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> if (is == 1) {<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> while (it.hasNext()) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> ai16data[it.oIndex] = (short) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> }<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> } else if (as == 1) {<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> while (it.hasNext()) {<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> ai16data[it.oIndex] = (short) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> for (int j = 1; j < is; j++) {<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> ai16data[it.oIndex + j] = (short) toLong(Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> }<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> }<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> } else if (bs == 1) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> while (it.hasNext()) {<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> ai16data[it.oIndex] = (short) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> for (int j = 1; j < is; j++) {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> ai16data[it.oIndex + j] = (short) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> }<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> } else {<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> while (it.hasNext()) {<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> ai16data[it.oIndex] = (short) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> for (int j = 1; j < is; j++) {<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> ai16data[it.oIndex + j] = (short) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> }<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> }<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> }<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> break;<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> case Dataset.ARRAYINT32:<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> int[] ai32data = ((CompoundIntegerDataset) result).getData();<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> if (is == 1) {<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> while (it.hasNext()) {<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> ai32data[it.oIndex] = (int) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> }<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> } else if (as == 1) {<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> while (it.hasNext()) {<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> ai32data[it.oIndex] = (int) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> for (int j = 1; j < is; j++) {<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> ai32data[it.oIndex + j] = (int) toLong(Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> }<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> }<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> } else if (bs == 1) {<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> while (it.hasNext()) {<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> ai32data[it.oIndex] = (int) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> for (int j = 1; j < is; j++) {<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> ai32data[it.oIndex + j] = (int) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> }<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> }<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> } else {<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> while (it.hasNext()) {<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> ai32data[it.oIndex] = (int) toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> for (int j = 1; j < is; j++) {<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> ai32data[it.oIndex + j] = (int) toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> }<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> }<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> }<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> break;<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> case Dataset.ARRAYINT64:<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> long[] ai64data = ((CompoundLongDataset) result).getData();<a name="line.593"></a> |
| <span class="sourceLineNo">594</span><a name="line.594"></a> |
| <span class="sourceLineNo">595</span> if (is == 1) {<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> while (it.hasNext()) {<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> ai64data[it.oIndex] = toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> }<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> } else if (as == 1) {<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> while (it.hasNext()) {<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> ai64data[it.oIndex] = toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> for (int j = 1; j < is; j++) {<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> ai64data[it.oIndex + j] = toLong(Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> }<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> } else if (bs == 1) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> while (it.hasNext()) {<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> ai64data[it.oIndex] = toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> for (int j = 1; j < is; j++) {<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> ai64data[it.oIndex + j] = toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> }<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> }<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> } else {<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> while (it.hasNext()) {<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> ai64data[it.oIndex] = toLong(Math.hypot(it.aDouble, it.bDouble));<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> for (int j = 1; j < is; j++) {<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> ai64data[it.oIndex + j] = toLong(Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> }<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> }<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> }<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> break;<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> case Dataset.ARRAYFLOAT32:<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> float[] a32data = ((CompoundFloatDataset) result).getData();<a name="line.623"></a> |
| <span class="sourceLineNo">624</span><a name="line.624"></a> |
| <span class="sourceLineNo">625</span> if (is == 1) {<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> while (it.hasNext()) {<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> a32data[it.oIndex] = (float) Math.hypot(it.aDouble, it.bDouble);<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> }<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> } else if (as == 1) {<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> while (it.hasNext()) {<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> a32data[it.oIndex] = (float) Math.hypot(it.aDouble, it.bDouble);<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> for (int j = 1; j < is; j++) {<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> a32data[it.oIndex + j] = (float) Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j));<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> }<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> } else if (bs == 1) {<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> while (it.hasNext()) {<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> a32data[it.oIndex] = (float) Math.hypot(it.aDouble, it.bDouble);<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> for (int j = 1; j < is; j++) {<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> a32data[it.oIndex + j] = (float) Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble);<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> }<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> }<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> } else {<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> while (it.hasNext()) {<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> a32data[it.oIndex] = (float) Math.hypot(it.aDouble, it.bDouble);<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> for (int j = 1; j < is; j++) {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> a32data[it.oIndex + j] = (float) Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j));<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> }<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> }<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> }<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> break;<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> case Dataset.ARRAYFLOAT64:<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> double[] a64data = ((CompoundDoubleDataset) result).getData();<a name="line.653"></a> |
| <span class="sourceLineNo">654</span><a name="line.654"></a> |
| <span class="sourceLineNo">655</span> if (is == 1) {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> while (it.hasNext()) {<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> a64data[it.oIndex] = Math.hypot(it.aDouble, it.bDouble);<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> }<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> } else if (as == 1) {<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> while (it.hasNext()) {<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> a64data[it.oIndex] = Math.hypot(it.aDouble, it.bDouble);<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> for (int j = 1; j < is; j++) {<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> a64data[it.oIndex + j] = Math.hypot(it.aDouble, db.getElementDoubleAbs(it.bIndex + j));<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> }<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> }<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> } else if (bs == 1) {<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> while (it.hasNext()) {<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> a64data[it.oIndex] = Math.hypot(it.aDouble, it.bDouble);<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> for (int j = 1; j < is; j++) {<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> a64data[it.oIndex + j] = Math.hypot(da.getElementDoubleAbs(it.aIndex + j), it.bDouble);<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> }<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> }<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> } else {<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> while (it.hasNext()) {<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> a64data[it.oIndex] = Math.hypot(it.aDouble, it.bDouble);<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> for (int j = 1; j < is; j++) {<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> a64data[it.oIndex + j] = Math.hypot(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j));<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> }<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> }<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> }<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> break;<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> default:<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> throw new UnsupportedOperationException("hypot does not support this dataset type");<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> }<a name="line.684"></a> |
| <span class="sourceLineNo">685</span><a name="line.685"></a> |
| <span class="sourceLineNo">686</span> addFunctionName(da, db, result, "hypot");<a name="line.686"></a> |
| <span class="sourceLineNo">687</span><a name="line.687"></a> |
| <span class="sourceLineNo">688</span> return result;<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> }<a name="line.689"></a> |
| <span class="sourceLineNo">690</span><a name="line.690"></a> |
| <span class="sourceLineNo">691</span> /**<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> * @param a opposite side of right-angled triangle<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> * @param b adjacent side of right-angled triangle<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> * @return angle of triangle: atan(b/a)<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> */<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> public static Dataset arctan2(final Object a, final Object b) {<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> return arctan2(a, b, null);<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> }<a name="line.698"></a> |
| <span class="sourceLineNo">699</span><a name="line.699"></a> |
| <span class="sourceLineNo">700</span> /**<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> * @param a opposite side of right-angled triangle<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> * @param b adjacent side of right-angled triangle<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> * @param o output can be null - in which case, a new dataset is created<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> * @return angle of triangle: atan(b/a)<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> */<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> public static Dataset arctan2(final Object a, final Object b, final Dataset o) {<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> final Dataset db = b instanceof Dataset ? (Dataset) b : DatasetFactory.createFromObject(b);<a name="line.708"></a> |
| <span class="sourceLineNo">709</span><a name="line.709"></a> |
| <span class="sourceLineNo">710</span> final BroadcastIterator it = BroadcastIterator.createIterator(da, db, o, true);<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> final Dataset result = it.getOutput();<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> final int is = result.getElementsPerItem();<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> final int as = da.getElementsPerItem();<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> final int bs = db.getElementsPerItem();<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> final int dt = result.getDType();<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> switch (dt) {<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> case Dataset.BOOL:<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> boolean[] bdata = ((BooleanDataset) result).getData();<a name="line.718"></a> |
| <span class="sourceLineNo">719</span><a name="line.719"></a> |
| <span class="sourceLineNo">720</span> while (it.hasNext()) {<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> bdata[it.oIndex] = Math.atan2(it.aDouble, it.bDouble) != 0;<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> }<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> break;<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> case Dataset.INT8:<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> byte[] i8data = ((ByteDataset) result).getData();<a name="line.725"></a> |
| <span class="sourceLineNo">726</span><a name="line.726"></a> |
| <span class="sourceLineNo">727</span> while (it.hasNext()) {<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> i8data[it.oIndex] = (byte) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> }<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> break;<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> case Dataset.INT16:<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> short[] i16data = ((ShortDataset) result).getData();<a name="line.732"></a> |
| <span class="sourceLineNo">733</span><a name="line.733"></a> |
| <span class="sourceLineNo">734</span> while (it.hasNext()) {<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> i16data[it.oIndex] = (short) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> }<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> break;<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> case Dataset.INT32:<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> int[] i32data = ((IntegerDataset) result).getData();<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> <a name="line.740"></a> |
| <span class="sourceLineNo">741</span> while (it.hasNext()) {<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> i32data[it.oIndex] = (int) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> }<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> break;<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> case Dataset.INT64:<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> long[] i64data = ((LongDataset) result).getData();<a name="line.746"></a> |
| <span class="sourceLineNo">747</span><a name="line.747"></a> |
| <span class="sourceLineNo">748</span> while (it.hasNext()) {<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> i64data[it.oIndex] = toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> }<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> break;<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> case Dataset.FLOAT32:<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> float[] f32data = ((FloatDataset) result).getData();<a name="line.753"></a> |
| <span class="sourceLineNo">754</span><a name="line.754"></a> |
| <span class="sourceLineNo">755</span> while (it.hasNext()) {<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> f32data[it.oIndex] = (float) Math.atan2(it.aDouble, it.bDouble);<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> }<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> break;<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> case Dataset.FLOAT64:<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> double[] f64data = ((DoubleDataset) result).getData();<a name="line.760"></a> |
| <span class="sourceLineNo">761</span><a name="line.761"></a> |
| <span class="sourceLineNo">762</span> while (it.hasNext()) {<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> f64data[it.oIndex] = Math.atan2(it.aDouble, it.bDouble);<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> }<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> break;<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> case Dataset.ARRAYINT8:<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> byte[] ai8data = ((CompoundByteDataset) result).getData();<a name="line.767"></a> |
| <span class="sourceLineNo">768</span><a name="line.768"></a> |
| <span class="sourceLineNo">769</span> if (is == 1) {<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> while (it.hasNext()) {<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> ai8data[it.oIndex] = (byte) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> }<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> } else if (as == 1) {<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> while (it.hasNext()) {<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> ai8data[it.oIndex] = (byte) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> for (int j = 1; j < is; j++) {<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> ai8data[it.oIndex + j] = (byte) toLong(Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> }<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> }<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> } else if (bs == 1) {<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> while (it.hasNext()) {<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> ai8data[it.oIndex] = (byte) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> for (int j = 1; j < is; j++) {<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> ai8data[it.oIndex + j] = (byte) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> }<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> } else {<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> while (it.hasNext()) {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> ai8data[it.oIndex] = (byte) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> for (int j = 1; j < is; j++) {<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> ai8data[it.oIndex + j] = (byte) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> }<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> }<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> break;<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> case Dataset.ARRAYINT16:<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> short[] ai16data = ((CompoundShortDataset) result).getData();<a name="line.797"></a> |
| <span class="sourceLineNo">798</span><a name="line.798"></a> |
| <span class="sourceLineNo">799</span> if (is == 1) {<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> while (it.hasNext()) {<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> ai16data[it.oIndex] = (short) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> }<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> } else if (as == 1) {<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> while (it.hasNext()) {<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> ai16data[it.oIndex] = (short) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> for (int j = 1; j < is; j++) {<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> ai16data[it.oIndex + j] = (short) toLong(Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> }<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> }<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> } else if (bs == 1) {<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> while (it.hasNext()) {<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> ai16data[it.oIndex] = (short) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> for (int j = 1; j < is; j++) {<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> ai16data[it.oIndex + j] = (short) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> }<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> }<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> } else {<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> while (it.hasNext()) {<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> ai16data[it.oIndex] = (short) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> for (int j = 1; j < is; j++) {<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> ai16data[it.oIndex + j] = (short) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> }<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> }<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> }<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> break;<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> case Dataset.ARRAYINT32:<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> int[] ai32data = ((CompoundIntegerDataset) result).getData();<a name="line.827"></a> |
| <span class="sourceLineNo">828</span><a name="line.828"></a> |
| <span class="sourceLineNo">829</span> if (is == 1) {<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> while (it.hasNext()) {<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> ai32data[it.oIndex] = (int) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> }<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> } else if (as == 1) {<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> while (it.hasNext()) {<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> ai32data[it.oIndex] = (int) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> for (int j = 1; j < is; j++) {<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> ai32data[it.oIndex + j] = (int) toLong(Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> }<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> }<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> } else if (bs == 1) {<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> while (it.hasNext()) {<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> ai32data[it.oIndex] = (int) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> for (int j = 1; j < is; j++) {<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> ai32data[it.oIndex + j] = (int) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> }<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> }<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> } else {<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> while (it.hasNext()) {<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> ai32data[it.oIndex] = (int) toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.849"></a> |
| <span class="sourceLineNo">850</span> for (int j = 1; j < is; j++) {<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> ai32data[it.oIndex + j] = (int) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> }<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> }<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> }<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> break;<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> case Dataset.ARRAYINT64:<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> long[] ai64data = ((CompoundLongDataset) result).getData();<a name="line.857"></a> |
| <span class="sourceLineNo">858</span><a name="line.858"></a> |
| <span class="sourceLineNo">859</span> if (is == 1) {<a name="line.859"></a> |
| <span class="sourceLineNo">860</span> while (it.hasNext()) {<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> ai64data[it.oIndex] = toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> }<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> } else if (as == 1) {<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> while (it.hasNext()) {<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> ai64data[it.oIndex] = toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> for (int j = 1; j < is; j++) {<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> ai64data[it.oIndex + j] = toLong(Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j)));<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> }<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> }<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> } else if (bs == 1) {<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> while (it.hasNext()) {<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> ai64data[it.oIndex] = toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> for (int j = 1; j < is; j++) {<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> ai64data[it.oIndex + j] = toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble));<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> }<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> }<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> } else {<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> while (it.hasNext()) {<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> ai64data[it.oIndex] = toLong(Math.atan2(it.aDouble, it.bDouble));<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> for (int j = 1; j < is; j++) {<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> ai64data[it.oIndex + j] = toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j)));<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> }<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> }<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> }<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> break;<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> case Dataset.ARRAYFLOAT32:<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> float[] a32data = ((CompoundFloatDataset) result).getData();<a name="line.887"></a> |
| <span class="sourceLineNo">888</span><a name="line.888"></a> |
| <span class="sourceLineNo">889</span> if (is == 1) {<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> while (it.hasNext()) {<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> a32data[it.oIndex] = (float) Math.atan2(it.aDouble, it.bDouble);<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> }<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> } else if (as == 1) {<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> while (it.hasNext()) {<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> a32data[it.oIndex] = (float) Math.atan2(it.aDouble, it.bDouble);<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> for (int j = 1; j < is; j++) {<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> a32data[it.oIndex + j] = (float) Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j));<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> }<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> }<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> } else if (bs == 1) {<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> while (it.hasNext()) {<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> a32data[it.oIndex] = (float) Math.atan2(it.aDouble, it.bDouble);<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> for (int j = 1; j < is; j++) {<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> a32data[it.oIndex + j] = (float) Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble);<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> }<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> }<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> } else {<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> while (it.hasNext()) {<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> a32data[it.oIndex] = (float) Math.atan2(it.aDouble, it.bDouble);<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> for (int j = 1; j < is; j++) {<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> a32data[it.oIndex + j] = (float) Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j));<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> }<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> }<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> break;<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> case Dataset.ARRAYFLOAT64:<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> double[] a64data = ((CompoundDoubleDataset) result).getData();<a name="line.917"></a> |
| <span class="sourceLineNo">918</span><a name="line.918"></a> |
| <span class="sourceLineNo">919</span> if (is == 1) {<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> while (it.hasNext()) {<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> a64data[it.oIndex] = Math.atan2(it.aDouble, it.bDouble);<a name="line.921"></a> |
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| <span class="sourceLineNo">923</span> } else if (as == 1) {<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> while (it.hasNext()) {<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> a64data[it.oIndex] = Math.atan2(it.aDouble, it.bDouble);<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> for (int j = 1; j < is; j++) {<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> a64data[it.oIndex + j] = Math.atan2(it.aDouble, db.getElementDoubleAbs(it.bIndex + j));<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> }<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> }<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> } else if (bs == 1) {<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> while (it.hasNext()) {<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> a64data[it.oIndex] = Math.atan2(it.aDouble, it.bDouble);<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> for (int j = 1; j < is; j++) {<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> a64data[it.oIndex + j] = Math.atan2(da.getElementDoubleAbs(it.aIndex + j), it.bDouble);<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> }<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> }<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> } else {<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> while (it.hasNext()) {<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> a64data[it.oIndex] = Math.atan2(it.aDouble, it.bDouble);<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> for (int j = 1; j < is; j++) {<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> a64data[it.oIndex + j] = Math.atan2(da.getElementDoubleAbs(it.aIndex + j), db.getElementDoubleAbs(it.bIndex + j));<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> }<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> }<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> }<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> break;<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> default:<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> throw new UnsupportedOperationException("atan2 does not support multiple-element dataset");<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> }<a name="line.948"></a> |
| <span class="sourceLineNo">949</span><a name="line.949"></a> |
| <span class="sourceLineNo">950</span> addFunctionName(da, db, result, "atan2");<a name="line.950"></a> |
| <span class="sourceLineNo">951</span><a name="line.951"></a> |
| <span class="sourceLineNo">952</span> return result;<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> }<a name="line.953"></a> |
| <span class="sourceLineNo">954</span><a name="line.954"></a> |
| <span class="sourceLineNo">955</span> /**<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> * Create a dataset of the arguments from a complex dataset<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> * @param a<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> * @return dataset of angles in radians<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> */<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> public static Dataset angle(final Object a) {<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> return angle(a, false, null);<a name="line.961"></a> |
| <span class="sourceLineNo">962</span> }<a name="line.962"></a> |
| <span class="sourceLineNo">963</span><a name="line.963"></a> |
| <span class="sourceLineNo">964</span> /**<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> * Create a dataset of the arguments from a complex dataset<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> * @param a<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> * @param inDegrees if true then return angles in degrees else in radians<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> * @return dataset of angles<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> */<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> public static Dataset angle(final Object a, final boolean inDegrees) {<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> return angle(a, inDegrees, null);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> }<a name="line.972"></a> |
| <span class="sourceLineNo">973</span><a name="line.973"></a> |
| <span class="sourceLineNo">974</span> /**<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> * Create a dataset of the arguments from a complex dataset<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> * @param a<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> * @param o output can be null - in which case, a new dataset is created<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> * @return dataset of angles in radians<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> */<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> public static Dataset angle(final Object a, final Dataset o) {<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> return angle(a, false, o);<a name="line.981"></a> |
| <span class="sourceLineNo">982</span> }<a name="line.982"></a> |
| <span class="sourceLineNo">983</span><a name="line.983"></a> |
| <span class="sourceLineNo">984</span> /**<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> * Create a dataset of the arguments from a complex dataset<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> * @param a<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> * @param inDegrees if true then return angles in degrees else in radians<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> * @param o output can be null - in which case, a new dataset is created<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> * @return dataset of angles<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> */<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> public static Dataset angle(final Object a, final boolean inDegrees, final Dataset o) {<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.992"></a> |
| <span class="sourceLineNo">993</span><a name="line.993"></a> |
| <span class="sourceLineNo">994</span> if (!da.isComplex()) {<a name="line.994"></a> |
| <span class="sourceLineNo">995</span> throw new UnsupportedOperationException("angle does not support this dataset type");<a name="line.995"></a> |
| <span class="sourceLineNo">996</span> }<a name="line.996"></a> |
| <span class="sourceLineNo">997</span><a name="line.997"></a> |
| <span class="sourceLineNo">998</span> final SingleInputBroadcastIterator it = new SingleInputBroadcastIterator(da, o, true, false, false);<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> final Dataset result = it.getOutput();<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> final int is = result.getElementsPerItem();<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> final int dt = result.getDType();<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> <a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> switch(dt) {<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> case Dataset.INT8:<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> final byte[] oi8data = ((ByteDataset) result).data;<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> it.setOutputDouble(false);<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span><a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> if (inDegrees) {<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> while (it.hasNext()) {<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> oi8data[it.oIndex] = (byte) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> }<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> } else {<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> while (it.hasNext()) {<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> oi8data[it.oIndex] = (byte) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> }<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> }<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> break;<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> case Dataset.INT16:<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> final short[] oi16data = ((ShortDataset) result).data;<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> it.setOutputDouble(false);<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span><a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> if (inDegrees) {<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> while (it.hasNext()) {<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> oi16data[it.oIndex] = (short) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> }<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> } else {<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> while (it.hasNext()) {<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> oi16data[it.oIndex] = (short) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> }<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> }<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> break;<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> case Dataset.INT32:<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> final int[] oi32data = ((IntegerDataset) result).data;<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> it.setOutputDouble(false);<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span><a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> if (inDegrees) {<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> while (it.hasNext()) {<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> oi32data[it.oIndex] = (int) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> }<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> } else {<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> while (it.hasNext()) {<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> oi32data[it.oIndex] = (int) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> }<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> }<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> break;<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> case Dataset.INT64:<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> final long[] oi64data = ((LongDataset) result).data;<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> it.setOutputDouble(false);<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span><a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> if (inDegrees) {<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> while (it.hasNext()) {<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> oi64data[it.oIndex] = toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> }<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> } else {<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> while (it.hasNext()) {<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> oi64data[it.oIndex] = toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> }<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> }<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> break;<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> case Dataset.ARRAYINT8:<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> final byte[] oai8data = ((CompoundByteDataset) result).data;<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> it.setOutputDouble(false);<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span><a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> if (inDegrees) {<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> while (it.hasNext()) {<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> final byte ox = (byte) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> for (int j = 0; j < is; j++) {<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> oai8data[it.oIndex + j] = ox;<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> }<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> }<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> } else {<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> while (it.hasNext()) {<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> final byte ox = (byte) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> for (int j = 0; j < is; j++) {<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> oai8data[it.oIndex + j] = ox;<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> }<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> }<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> }<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> break;<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> case Dataset.ARRAYINT16:<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> final short[] oai16data = ((CompoundShortDataset) result).data;<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> it.setOutputDouble(false);<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span><a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> if (inDegrees) {<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> while (it.hasNext()) {<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> final short ox = (short) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> for (int j = 0; j < is; j++) {<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> oai16data[it.oIndex + j] = ox;<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> }<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> }<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> } else {<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> while (it.hasNext()) {<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> final short ox = (short) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> for (int j = 0; j < is; j++) {<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> oai16data[it.oIndex + j] = ox;<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> }<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> }<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> }<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> break;<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> case Dataset.ARRAYINT32:<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> final int[] oai32data = ((CompoundIntegerDataset) result).data;<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> it.setOutputDouble(false);<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span><a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> if (inDegrees) {<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> while (it.hasNext()) {<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> final int ox = (int) toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> for (int j = 0; j < is; j++) {<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> oai32data[it.oIndex + j] = ox;<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> }<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> }<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> } else {<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> while (it.hasNext()) {<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> final int ox = (int) toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> for (int j = 0; j < is; j++) {<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> oai32data[it.oIndex + j] = ox;<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> }<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> }<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> }<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> break;<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span> case Dataset.ARRAYINT64:<a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> final long[] oai64data = ((CompoundLongDataset) result).data;<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> it.setOutputDouble(false);<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span><a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> if (inDegrees) {<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> while (it.hasNext()) {<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> final long ox = toLong(Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble)));<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> for (int j = 0; j < is; j++) {<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> oai64data[it.oIndex + j] = ox;<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> }<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> }<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> } else {<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> while (it.hasNext()) {<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> final long ox = toLong(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> for (int j = 0; j < is; j++) {<a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> oai64data[it.oIndex + j] = ox;<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> }<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> }<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> }<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span> break;<a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> case Dataset.FLOAT32:<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> final float[] of32data = ((FloatDataset) result).data;<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span><a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> if (inDegrees) {<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> while (it.hasNext()) {<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> of32data[it.oIndex] = (float) Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> }<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> } else {<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> while (it.hasNext()) {<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> of32data[it.oIndex] = (float) Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> }<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> }<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> break;<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> case Dataset.FLOAT64:<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> final double[] of64data = ((DoubleDataset) result).data;<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span><a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> if (inDegrees) {<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> while (it.hasNext()) {<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> of64data[it.oIndex] = Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> }<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> } else {<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> while (it.hasNext()) {<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> of64data[it.oIndex] = Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> }<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> }<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> break;<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span> case Dataset.ARRAYFLOAT32:<a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span> final float[] oaf32data = ((CompoundFloatDataset) result).data;<a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span><a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span> if (inDegrees) {<a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> while (it.hasNext()) {<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> final float ox = (float) Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> for (int j = 0; j < is; j++) {<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> oaf32data[it.oIndex + j] = ox;<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> }<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> }<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> } else {<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> while (it.hasNext()) {<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span> final float ox = (float) Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> for (int j = 0; j < is; j++) {<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> oaf32data[it.oIndex + j] = ox;<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span> }<a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> }<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span> }<a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> break;<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> case Dataset.ARRAYFLOAT64:<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> final double[] oaf64data = ((CompoundDoubleDataset) result).data;<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span><a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> if (inDegrees) {<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> while (it.hasNext()) {<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> final double ox = Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> for (int j = 0; j < is; j++) {<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> oaf64data[it.oIndex + j] = ox;<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> }<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> }<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> } else {<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> while (it.hasNext()) {<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> final double ox = Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> for (int j = 0; j < is; j++) {<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> oaf64data[it.oIndex + j] = ox;<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> }<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> }<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> }<a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> break;<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span> case Dataset.COMPLEX64:<a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span> final float[] oc64data = ((ComplexFloatDataset) result).data;<a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span><a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> if (inDegrees) {<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span> while (it.hasNext()) {<a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> oc64data[it.oIndex] = (float) Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span> oc64data[it.oIndex + 1] = 0;<a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span> }<a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span> } else {<a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> while (it.hasNext()) {<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span> oc64data[it.oIndex] = (float) Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> oc64data[it.oIndex + 1] = 0;<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> }<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> }<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span> break;<a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span> case Dataset.COMPLEX128:<a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> final double[] oc128data = ((ComplexDoubleDataset) result).data;<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span><a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> if (inDegrees) {<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span> while (it.hasNext()) {<a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> oc128data[it.oIndex] = Math.toDegrees(Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble));<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> oc128data[it.oIndex + 1] = 0;<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span> }<a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> } else {<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> while (it.hasNext()) {<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span> oc128data[it.oIndex] = Math.atan2(da.getElementDoubleAbs(it.aIndex + 1), it.aDouble);<a name="line.1229"></a> |
| <span class="sourceLineNo">1230</span> oc128data[it.oIndex + 1] = 0;<a name="line.1230"></a> |
| <span class="sourceLineNo">1231</span> }<a name="line.1231"></a> |
| <span class="sourceLineNo">1232</span> }<a name="line.1232"></a> |
| <span class="sourceLineNo">1233</span> break;<a name="line.1233"></a> |
| <span class="sourceLineNo">1234</span> default:<a name="line.1234"></a> |
| <span class="sourceLineNo">1235</span> throw new IllegalArgumentException("angle does not support this dataset type");<a name="line.1235"></a> |
| <span class="sourceLineNo">1236</span> }<a name="line.1236"></a> |
| <span class="sourceLineNo">1237</span><a name="line.1237"></a> |
| <span class="sourceLineNo">1238</span> addFunctionName(result, "angle");<a name="line.1238"></a> |
| <span class="sourceLineNo">1239</span> <a name="line.1239"></a> |
| <span class="sourceLineNo">1240</span> return result;<a name="line.1240"></a> |
| <span class="sourceLineNo">1241</span> }<a name="line.1241"></a> |
| <span class="sourceLineNo">1242</span><a name="line.1242"></a> |
| <span class="sourceLineNo">1243</span> /**<a name="line.1243"></a> |
| <span class="sourceLineNo">1244</span> * Create a phase only dataset. NB it will contain NaNs if there are any items with zero amplitude<a name="line.1244"></a> |
| <span class="sourceLineNo">1245</span> * @param a dataset<a name="line.1245"></a> |
| <span class="sourceLineNo">1246</span> * @param keepZeros if true then zero items are returned as zero rather than NaNs<a name="line.1246"></a> |
| <span class="sourceLineNo">1247</span> * @return complex dataset where items have unit amplitude<a name="line.1247"></a> |
| <span class="sourceLineNo">1248</span> */<a name="line.1248"></a> |
| <span class="sourceLineNo">1249</span> public static Dataset phaseAsComplexNumber(final Object a, final boolean keepZeros) {<a name="line.1249"></a> |
| <span class="sourceLineNo">1250</span> return phaseAsComplexNumber(a, null, keepZeros);<a name="line.1250"></a> |
| <span class="sourceLineNo">1251</span> }<a name="line.1251"></a> |
| <span class="sourceLineNo">1252</span><a name="line.1252"></a> |
| <span class="sourceLineNo">1253</span> /**<a name="line.1253"></a> |
| <span class="sourceLineNo">1254</span> * Create a phase only dataset. NB it will contain NaNs if there are any items with zero amplitude<a name="line.1254"></a> |
| <span class="sourceLineNo">1255</span> * @param a dataset<a name="line.1255"></a> |
| <span class="sourceLineNo">1256</span> * @param o output can be null - in which case, a new dataset is created<a name="line.1256"></a> |
| <span class="sourceLineNo">1257</span> * @param keepZeros if true then zero items are returned as zero rather than NaNs<a name="line.1257"></a> |
| <span class="sourceLineNo">1258</span> * @return complex dataset where items have unit amplitude<a name="line.1258"></a> |
| <span class="sourceLineNo">1259</span> */<a name="line.1259"></a> |
| <span class="sourceLineNo">1260</span> public static Dataset phaseAsComplexNumber(final Object a, final Dataset o, final boolean keepZeros) {<a name="line.1260"></a> |
| <span class="sourceLineNo">1261</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.1261"></a> |
| <span class="sourceLineNo">1262</span><a name="line.1262"></a> |
| <span class="sourceLineNo">1263</span> if (!da.isComplex()) {<a name="line.1263"></a> |
| <span class="sourceLineNo">1264</span> throw new IllegalArgumentException("Input dataset is not of complex type");<a name="line.1264"></a> |
| <span class="sourceLineNo">1265</span> }<a name="line.1265"></a> |
| <span class="sourceLineNo">1266</span> Dataset result = o == null ? DatasetFactory.zeros(da) : o;<a name="line.1266"></a> |
| <span class="sourceLineNo">1267</span> if (!result.isComplex()) {<a name="line.1267"></a> |
| <span class="sourceLineNo">1268</span> throw new IllegalArgumentException("Output dataset is not of complex type");<a name="line.1268"></a> |
| <span class="sourceLineNo">1269</span> }<a name="line.1269"></a> |
| <span class="sourceLineNo">1270</span> final int dt = result.getDType();<a name="line.1270"></a> |
| <span class="sourceLineNo">1271</span> SingleInputBroadcastIterator it = new SingleInputBroadcastIterator(da, result);<a name="line.1271"></a> |
| <span class="sourceLineNo">1272</span><a name="line.1272"></a> |
| <span class="sourceLineNo">1273</span> switch (dt) {<a name="line.1273"></a> |
| <span class="sourceLineNo">1274</span> case Dataset.COMPLEX64:<a name="line.1274"></a> |
| <span class="sourceLineNo">1275</span> float[] z64data = ((ComplexFloatDataset) result).getData();<a name="line.1275"></a> |
| <span class="sourceLineNo">1276</span> <a name="line.1276"></a> |
| <span class="sourceLineNo">1277</span> if (keepZeros) {<a name="line.1277"></a> |
| <span class="sourceLineNo">1278</span> while (it.hasNext()) {<a name="line.1278"></a> |
| <span class="sourceLineNo">1279</span> double rr = it.aDouble;<a name="line.1279"></a> |
| <span class="sourceLineNo">1280</span> double ri = da.getElementDoubleAbs(it.aIndex + 1);<a name="line.1280"></a> |
| <span class="sourceLineNo">1281</span> double am = Math.hypot(rr, ri);<a name="line.1281"></a> |
| <span class="sourceLineNo">1282</span> if (am == 0) {<a name="line.1282"></a> |
| <span class="sourceLineNo">1283</span> z64data[it.oIndex] = 0;<a name="line.1283"></a> |
| <span class="sourceLineNo">1284</span> z64data[it.oIndex + 1] = 0;<a name="line.1284"></a> |
| <span class="sourceLineNo">1285</span> } else {<a name="line.1285"></a> |
| <span class="sourceLineNo">1286</span> z64data[it.oIndex] = (float) (rr/am);<a name="line.1286"></a> |
| <span class="sourceLineNo">1287</span> z64data[it.oIndex + 1] = (float) (ri/am);<a name="line.1287"></a> |
| <span class="sourceLineNo">1288</span> }<a name="line.1288"></a> |
| <span class="sourceLineNo">1289</span> }<a name="line.1289"></a> |
| <span class="sourceLineNo">1290</span> } else {<a name="line.1290"></a> |
| <span class="sourceLineNo">1291</span> while (it.hasNext()) {<a name="line.1291"></a> |
| <span class="sourceLineNo">1292</span> double rr = it.aDouble;<a name="line.1292"></a> |
| <span class="sourceLineNo">1293</span> double ri = da.getElementDoubleAbs(it.aIndex + 1);<a name="line.1293"></a> |
| <span class="sourceLineNo">1294</span> double am = Math.hypot(rr, ri);<a name="line.1294"></a> |
| <span class="sourceLineNo">1295</span> z64data[it.oIndex] = (float) (rr/am);<a name="line.1295"></a> |
| <span class="sourceLineNo">1296</span> z64data[it.oIndex + 1] = (float) (ri/am);<a name="line.1296"></a> |
| <span class="sourceLineNo">1297</span> }<a name="line.1297"></a> |
| <span class="sourceLineNo">1298</span> }<a name="line.1298"></a> |
| <span class="sourceLineNo">1299</span> break;<a name="line.1299"></a> |
| <span class="sourceLineNo">1300</span> case Dataset.COMPLEX128:<a name="line.1300"></a> |
| <span class="sourceLineNo">1301</span> double[] z128data = ((ComplexDoubleDataset) result).getData();<a name="line.1301"></a> |
| <span class="sourceLineNo">1302</span> <a name="line.1302"></a> |
| <span class="sourceLineNo">1303</span> if (keepZeros) {<a name="line.1303"></a> |
| <span class="sourceLineNo">1304</span> while (it.hasNext()) {<a name="line.1304"></a> |
| <span class="sourceLineNo">1305</span> double rr = it.aDouble;<a name="line.1305"></a> |
| <span class="sourceLineNo">1306</span> double ri = da.getElementDoubleAbs(it.aIndex + 1);<a name="line.1306"></a> |
| <span class="sourceLineNo">1307</span> double am = Math.hypot(rr, ri);<a name="line.1307"></a> |
| <span class="sourceLineNo">1308</span> if (am == 0) {<a name="line.1308"></a> |
| <span class="sourceLineNo">1309</span> z128data[it.oIndex] = 0;<a name="line.1309"></a> |
| <span class="sourceLineNo">1310</span> z128data[it.oIndex + 1] = 0;<a name="line.1310"></a> |
| <span class="sourceLineNo">1311</span> } else {<a name="line.1311"></a> |
| <span class="sourceLineNo">1312</span> z128data[it.oIndex] = rr / am;<a name="line.1312"></a> |
| <span class="sourceLineNo">1313</span> z128data[it.oIndex + 1] = ri / am;<a name="line.1313"></a> |
| <span class="sourceLineNo">1314</span> }<a name="line.1314"></a> |
| <span class="sourceLineNo">1315</span> }<a name="line.1315"></a> |
| <span class="sourceLineNo">1316</span> } else {<a name="line.1316"></a> |
| <span class="sourceLineNo">1317</span> while (it.hasNext()) {<a name="line.1317"></a> |
| <span class="sourceLineNo">1318</span> double rr = it.aDouble;<a name="line.1318"></a> |
| <span class="sourceLineNo">1319</span> double ri = da.getElementDoubleAbs(it.aIndex + 1);<a name="line.1319"></a> |
| <span class="sourceLineNo">1320</span> double am = Math.hypot(rr, ri);<a name="line.1320"></a> |
| <span class="sourceLineNo">1321</span> z128data[it.oIndex] = rr / am;<a name="line.1321"></a> |
| <span class="sourceLineNo">1322</span> z128data[it.oIndex + 1] = ri / am;<a name="line.1322"></a> |
| <span class="sourceLineNo">1323</span> }<a name="line.1323"></a> |
| <span class="sourceLineNo">1324</span> }<a name="line.1324"></a> |
| <span class="sourceLineNo">1325</span> break;<a name="line.1325"></a> |
| <span class="sourceLineNo">1326</span> }<a name="line.1326"></a> |
| <span class="sourceLineNo">1327</span><a name="line.1327"></a> |
| <span class="sourceLineNo">1328</span> addFunctionName(result, "phase");<a name="line.1328"></a> |
| <span class="sourceLineNo">1329</span><a name="line.1329"></a> |
| <span class="sourceLineNo">1330</span> return result;<a name="line.1330"></a> |
| <span class="sourceLineNo">1331</span> }<a name="line.1331"></a> |
| <span class="sourceLineNo">1332</span><a name="line.1332"></a> |
| <span class="sourceLineNo">1333</span> /**<a name="line.1333"></a> |
| <span class="sourceLineNo">1334</span> * Adds all sets passed in together<a name="line.1334"></a> |
| <span class="sourceLineNo">1335</span> * <a name="line.1335"></a> |
| <span class="sourceLineNo">1336</span> * The first IDataset must cast to Dataset<a name="line.1336"></a> |
| <span class="sourceLineNo">1337</span> * <a name="line.1337"></a> |
| <span class="sourceLineNo">1338</span> * For memory efficiency sake if add(...) is called with a<a name="line.1338"></a> |
| <span class="sourceLineNo">1339</span> * set of size one, no clone is done, the original object is<a name="line.1339"></a> |
| <span class="sourceLineNo">1340</span> * returned directly. Otherwise a new data set is returned,<a name="line.1340"></a> |
| <span class="sourceLineNo">1341</span> * the sum of those passed in.<a name="line.1341"></a> |
| <span class="sourceLineNo">1342</span> * <a name="line.1342"></a> |
| <span class="sourceLineNo">1343</span> * @param sets<a name="line.1343"></a> |
| <span class="sourceLineNo">1344</span> * @param requireClone<a name="line.1344"></a> |
| <span class="sourceLineNo">1345</span> * @return sum of collection<a name="line.1345"></a> |
| <span class="sourceLineNo">1346</span> */<a name="line.1346"></a> |
| <span class="sourceLineNo">1347</span> public static Dataset add(final Collection<IDataset> sets, boolean requireClone) {<a name="line.1347"></a> |
| <span class="sourceLineNo">1348</span> if (sets.isEmpty())<a name="line.1348"></a> |
| <span class="sourceLineNo">1349</span> return null;<a name="line.1349"></a> |
| <span class="sourceLineNo">1350</span> final Iterator<IDataset> it = sets.iterator();<a name="line.1350"></a> |
| <span class="sourceLineNo">1351</span> if (sets.size() == 1)<a name="line.1351"></a> |
| <span class="sourceLineNo">1352</span> return DatasetUtils.convertToDataset(it.next());<a name="line.1352"></a> |
| <span class="sourceLineNo">1353</span> <a name="line.1353"></a> |
| <span class="sourceLineNo">1354</span> Dataset sum = requireClone ? ((Dataset) it.next()).clone() : (Dataset) it.next();<a name="line.1354"></a> |
| <span class="sourceLineNo">1355</span> <a name="line.1355"></a> |
| <span class="sourceLineNo">1356</span> while (it.hasNext()) {<a name="line.1356"></a> |
| <span class="sourceLineNo">1357</span> add(sum, it.next(), sum);<a name="line.1357"></a> |
| <span class="sourceLineNo">1358</span> }<a name="line.1358"></a> |
| <span class="sourceLineNo">1359</span> <a name="line.1359"></a> |
| <span class="sourceLineNo">1360</span> return sum;<a name="line.1360"></a> |
| <span class="sourceLineNo">1361</span> }<a name="line.1361"></a> |
| <span class="sourceLineNo">1362</span><a name="line.1362"></a> |
| <span class="sourceLineNo">1363</span> /**<a name="line.1363"></a> |
| <span class="sourceLineNo">1364</span> * Multiplies all sets passed in together<a name="line.1364"></a> |
| <span class="sourceLineNo">1365</span> * <a name="line.1365"></a> |
| <span class="sourceLineNo">1366</span> * The first IDataset must cast to Dataset<a name="line.1366"></a> |
| <span class="sourceLineNo">1367</span> * <a name="line.1367"></a> |
| <span class="sourceLineNo">1368</span> * @param sets<a name="line.1368"></a> |
| <span class="sourceLineNo">1369</span> * @param requireClone<a name="line.1369"></a> |
| <span class="sourceLineNo">1370</span> * @return product of collection<a name="line.1370"></a> |
| <span class="sourceLineNo">1371</span> */<a name="line.1371"></a> |
| <span class="sourceLineNo">1372</span> public static Dataset multiply(final Collection<IDataset> sets, boolean requireClone) {<a name="line.1372"></a> |
| <span class="sourceLineNo">1373</span> if (sets.isEmpty())<a name="line.1373"></a> |
| <span class="sourceLineNo">1374</span> return null;<a name="line.1374"></a> |
| <span class="sourceLineNo">1375</span> final Iterator<IDataset> it = sets.iterator();<a name="line.1375"></a> |
| <span class="sourceLineNo">1376</span> if (sets.size() == 1)<a name="line.1376"></a> |
| <span class="sourceLineNo">1377</span> return DatasetUtils.convertToDataset(it.next());<a name="line.1377"></a> |
| <span class="sourceLineNo">1378</span> Dataset product = requireClone ? ((Dataset) it.next()).clone() : (Dataset) it.next();<a name="line.1378"></a> |
| <span class="sourceLineNo">1379</span> <a name="line.1379"></a> |
| <span class="sourceLineNo">1380</span> while (it.hasNext()) {<a name="line.1380"></a> |
| <span class="sourceLineNo">1381</span> multiply(product, it.next(), product);<a name="line.1381"></a> |
| <span class="sourceLineNo">1382</span> }<a name="line.1382"></a> |
| <span class="sourceLineNo">1383</span> <a name="line.1383"></a> |
| <span class="sourceLineNo">1384</span> return product;<a name="line.1384"></a> |
| <span class="sourceLineNo">1385</span> }<a name="line.1385"></a> |
| <span class="sourceLineNo">1386</span><a name="line.1386"></a> |
| <span class="sourceLineNo">1387</span> /**<a name="line.1387"></a> |
| <span class="sourceLineNo">1388</span> * Linearly interpolate values at points in a 1D dataset corresponding to given coordinates.<a name="line.1388"></a> |
| <span class="sourceLineNo">1389</span> * @param x input 1-D coordinate dataset (must be ordered)<a name="line.1389"></a> |
| <span class="sourceLineNo">1390</span> * @param d input 1-D dataset<a name="line.1390"></a> |
| <span class="sourceLineNo">1391</span> * @param x0 coordinate values<a name="line.1391"></a> |
| <span class="sourceLineNo">1392</span> * @param left value to use when x0 lies left of domain. If null, then interpolate to zero by using leftmost interval<a name="line.1392"></a> |
| <span class="sourceLineNo">1393</span> * @param right value to use when x0 lies right of domain. If null, then interpolate to zero by using rightmost interval<a name="line.1393"></a> |
| <span class="sourceLineNo">1394</span> * @return interpolated values<a name="line.1394"></a> |
| <span class="sourceLineNo">1395</span> */<a name="line.1395"></a> |
| <span class="sourceLineNo">1396</span> public static Dataset interpolate(final Dataset x, final Dataset d, final IDataset x0, Number left, Number right) {<a name="line.1396"></a> |
| <span class="sourceLineNo">1397</span> assert x.getRank() == 1;<a name="line.1397"></a> |
| <span class="sourceLineNo">1398</span> assert d.getRank() == 1;<a name="line.1398"></a> |
| <span class="sourceLineNo">1399</span> <a name="line.1399"></a> |
| <span class="sourceLineNo">1400</span> DoubleDataset r = DatasetFactory.zeros(DoubleDataset.class, x0.getShape());<a name="line.1400"></a> |
| <span class="sourceLineNo">1401</span><a name="line.1401"></a> |
| <span class="sourceLineNo">1402</span> Monotonicity mono = Comparisons.findMonotonicity(x);<a name="line.1402"></a> |
| <span class="sourceLineNo">1403</span> if (mono == Monotonicity.NOT_ORDERED) {<a name="line.1403"></a> |
| <span class="sourceLineNo">1404</span> throw new IllegalArgumentException("Dataset x must be ordered");<a name="line.1404"></a> |
| <span class="sourceLineNo">1405</span> }<a name="line.1405"></a> |
| <span class="sourceLineNo">1406</span> DoubleDataset dx = (DoubleDataset) DatasetUtils.cast(x, Dataset.FLOAT64);<a name="line.1406"></a> |
| <span class="sourceLineNo">1407</span> Dataset dx0 = DatasetUtils.convertToDataset(x0);<a name="line.1407"></a> |
| <span class="sourceLineNo">1408</span> if (x == dx) {<a name="line.1408"></a> |
| <span class="sourceLineNo">1409</span> dx = (DoubleDataset) x.flatten();<a name="line.1409"></a> |
| <span class="sourceLineNo">1410</span> }<a name="line.1410"></a> |
| <span class="sourceLineNo">1411</span> double[] xa = dx.getData();<a name="line.1411"></a> |
| <span class="sourceLineNo">1412</span> int s = xa.length - 1;<a name="line.1412"></a> |
| <span class="sourceLineNo">1413</span> boolean isReversed = mono == Monotonicity.STRICTLY_DECREASING || mono == Monotonicity.NONINCREASING;<a name="line.1413"></a> |
| <span class="sourceLineNo">1414</span> if (isReversed) {<a name="line.1414"></a> |
| <span class="sourceLineNo">1415</span> double[] txa = xa.clone();<a name="line.1415"></a> |
| <span class="sourceLineNo">1416</span> for (int i = 0; i <= s; i++) { // reverse order<a name="line.1416"></a> |
| <span class="sourceLineNo">1417</span> txa[s - i] = xa[i];<a name="line.1417"></a> |
| <span class="sourceLineNo">1418</span> }<a name="line.1418"></a> |
| <span class="sourceLineNo">1419</span> xa = txa;<a name="line.1419"></a> |
| <span class="sourceLineNo">1420</span> }<a name="line.1420"></a> |
| <span class="sourceLineNo">1421</span><a name="line.1421"></a> |
| <span class="sourceLineNo">1422</span> IndexIterator it = dx0.getIterator();<a name="line.1422"></a> |
| <span class="sourceLineNo">1423</span> int k = -1;<a name="line.1423"></a> |
| <span class="sourceLineNo">1424</span> while (it.hasNext()) {<a name="line.1424"></a> |
| <span class="sourceLineNo">1425</span> k++;<a name="line.1425"></a> |
| <span class="sourceLineNo">1426</span> double v = dx0.getElementDoubleAbs(it.index);<a name="line.1426"></a> |
| <span class="sourceLineNo">1427</span> int i = Arrays.binarySearch(xa, v);<a name="line.1427"></a> |
| <span class="sourceLineNo">1428</span> if (i < 0) {<a name="line.1428"></a> |
| <span class="sourceLineNo">1429</span> // i = -(insertion point) - 1<a name="line.1429"></a> |
| <span class="sourceLineNo">1430</span> if (i == -1) {<a name="line.1430"></a> |
| <span class="sourceLineNo">1431</span> if (left != null) {<a name="line.1431"></a> |
| <span class="sourceLineNo">1432</span> r.setAbs(k, left.doubleValue());<a name="line.1432"></a> |
| <span class="sourceLineNo">1433</span> continue;<a name="line.1433"></a> |
| <span class="sourceLineNo">1434</span> }<a name="line.1434"></a> |
| <span class="sourceLineNo">1435</span> final double d1 = xa[0] - xa[1];<a name="line.1435"></a> |
| <span class="sourceLineNo">1436</span> double t = d1 - v + xa[0];<a name="line.1436"></a> |
| <span class="sourceLineNo">1437</span> if (t >= 0)<a name="line.1437"></a> |
| <span class="sourceLineNo">1438</span> continue; // sets to zero<a name="line.1438"></a> |
| <span class="sourceLineNo">1439</span> t /= d1;<a name="line.1439"></a> |
| <span class="sourceLineNo">1440</span> r.setAbs(k, t * d.getDouble(isReversed ? s : 0));<a name="line.1440"></a> |
| <span class="sourceLineNo">1441</span> } else if (i == -s - 2) {<a name="line.1441"></a> |
| <span class="sourceLineNo">1442</span> if (right != null) {<a name="line.1442"></a> |
| <span class="sourceLineNo">1443</span> r.setAbs(k, right.doubleValue());<a name="line.1443"></a> |
| <span class="sourceLineNo">1444</span> continue;<a name="line.1444"></a> |
| <span class="sourceLineNo">1445</span> }<a name="line.1445"></a> |
| <span class="sourceLineNo">1446</span> final double d1 = xa[s] - xa[s - 1];<a name="line.1446"></a> |
| <span class="sourceLineNo">1447</span> double t = d1 - v + xa[s];<a name="line.1447"></a> |
| <span class="sourceLineNo">1448</span> if (t <= 0)<a name="line.1448"></a> |
| <span class="sourceLineNo">1449</span> continue; // sets to zero<a name="line.1449"></a> |
| <span class="sourceLineNo">1450</span> t /= d1;<a name="line.1450"></a> |
| <span class="sourceLineNo">1451</span> r.setAbs(k, t * d.getDouble(isReversed ? 0 : s));<a name="line.1451"></a> |
| <span class="sourceLineNo">1452</span> } else {<a name="line.1452"></a> |
| <span class="sourceLineNo">1453</span> i = -i - 1;<a name="line.1453"></a> |
| <span class="sourceLineNo">1454</span> double t = (xa[i] - v)/(xa[i] - xa[i - 1]);<a name="line.1454"></a> |
| <span class="sourceLineNo">1455</span> if (isReversed) {<a name="line.1455"></a> |
| <span class="sourceLineNo">1456</span> i = s - i;<a name="line.1456"></a> |
| <span class="sourceLineNo">1457</span> r.setAbs(k, t * d.getDouble(i + 1) + (1 - t) * d.getDouble(i));<a name="line.1457"></a> |
| <span class="sourceLineNo">1458</span> } else {<a name="line.1458"></a> |
| <span class="sourceLineNo">1459</span> r.setAbs(k, (1 - t) * d.getDouble(i) + t * d.getDouble(i - 1));<a name="line.1459"></a> |
| <span class="sourceLineNo">1460</span> }<a name="line.1460"></a> |
| <span class="sourceLineNo">1461</span> }<a name="line.1461"></a> |
| <span class="sourceLineNo">1462</span> } else {<a name="line.1462"></a> |
| <span class="sourceLineNo">1463</span> r.setAbs(k, d.getDouble(isReversed ? s - i : i));<a name="line.1463"></a> |
| <span class="sourceLineNo">1464</span> }<a name="line.1464"></a> |
| <span class="sourceLineNo">1465</span> }<a name="line.1465"></a> |
| <span class="sourceLineNo">1466</span> return r;<a name="line.1466"></a> |
| <span class="sourceLineNo">1467</span> }<a name="line.1467"></a> |
| <span class="sourceLineNo">1468</span><a name="line.1468"></a> |
| <span class="sourceLineNo">1469</span> /**<a name="line.1469"></a> |
| <span class="sourceLineNo">1470</span> * Linearly interpolate a value at a point in a 1D dataset. The dataset is considered to have<a name="line.1470"></a> |
| <span class="sourceLineNo">1471</span> * zero support outside its bounds. Thus points just outside are interpolated from the boundary<a name="line.1471"></a> |
| <span class="sourceLineNo">1472</span> * value to zero.<a name="line.1472"></a> |
| <span class="sourceLineNo">1473</span> * @param d input dataset<a name="line.1473"></a> |
| <span class="sourceLineNo">1474</span> * @param x0 coordinate<a name="line.1474"></a> |
| <span class="sourceLineNo">1475</span> * @return interpolated value<a name="line.1475"></a> |
| <span class="sourceLineNo">1476</span> */<a name="line.1476"></a> |
| <span class="sourceLineNo">1477</span> public static double interpolate(final Dataset d, final double x0) {<a name="line.1477"></a> |
| <span class="sourceLineNo">1478</span> assert d.getRank() == 1;<a name="line.1478"></a> |
| <span class="sourceLineNo">1479</span><a name="line.1479"></a> |
| <span class="sourceLineNo">1480</span> final int i0 = (int) Math.floor(x0);<a name="line.1480"></a> |
| <span class="sourceLineNo">1481</span> final int e0 = d.getSize() - 1;<a name="line.1481"></a> |
| <span class="sourceLineNo">1482</span> if (i0 < -1 || i0 > e0)<a name="line.1482"></a> |
| <span class="sourceLineNo">1483</span> return 0;<a name="line.1483"></a> |
| <span class="sourceLineNo">1484</span><a name="line.1484"></a> |
| <span class="sourceLineNo">1485</span> final double u0 = x0 - i0;<a name="line.1485"></a> |
| <span class="sourceLineNo">1486</span><a name="line.1486"></a> |
| <span class="sourceLineNo">1487</span> double r = 0;<a name="line.1487"></a> |
| <span class="sourceLineNo">1488</span> final double f1 = i0 < 0 ? 0 : d.getDouble(i0);<a name="line.1488"></a> |
| <span class="sourceLineNo">1489</span> if (u0 > 0) {<a name="line.1489"></a> |
| <span class="sourceLineNo">1490</span> r = (1 - u0) * f1 + (i0 == e0 ? 0 : u0 * d.getDouble(i0 + 1));<a name="line.1490"></a> |
| <span class="sourceLineNo">1491</span> } else {<a name="line.1491"></a> |
| <span class="sourceLineNo">1492</span> r = f1;<a name="line.1492"></a> |
| <span class="sourceLineNo">1493</span> }<a name="line.1493"></a> |
| <span class="sourceLineNo">1494</span> return r;<a name="line.1494"></a> |
| <span class="sourceLineNo">1495</span> }<a name="line.1495"></a> |
| <span class="sourceLineNo">1496</span><a name="line.1496"></a> |
| <span class="sourceLineNo">1497</span> /**<a name="line.1497"></a> |
| <span class="sourceLineNo">1498</span> * Linearly interpolate a value at a point in a 1D dataset with a mask. The dataset is considered<a name="line.1498"></a> |
| <span class="sourceLineNo">1499</span> * to have zero support outside its bounds. Thus points just outside are interpolated from the<a name="line.1499"></a> |
| <span class="sourceLineNo">1500</span> * boundary value to zero.<a name="line.1500"></a> |
| <span class="sourceLineNo">1501</span> * @param d input dataset<a name="line.1501"></a> |
| <span class="sourceLineNo">1502</span> * @param m mask dataset<a name="line.1502"></a> |
| <span class="sourceLineNo">1503</span> * @param x0 coordinate<a name="line.1503"></a> |
| <span class="sourceLineNo">1504</span> * @return interpolated value<a name="line.1504"></a> |
| <span class="sourceLineNo">1505</span> */<a name="line.1505"></a> |
| <span class="sourceLineNo">1506</span> public static double interpolate(final Dataset d, final Dataset m, final double x0) {<a name="line.1506"></a> |
| <span class="sourceLineNo">1507</span> assert d.getRank() == 1;<a name="line.1507"></a> |
| <span class="sourceLineNo">1508</span> assert m.getRank() == 1;<a name="line.1508"></a> |
| <span class="sourceLineNo">1509</span><a name="line.1509"></a> |
| <span class="sourceLineNo">1510</span> final int i0 = (int) Math.floor(x0);<a name="line.1510"></a> |
| <span class="sourceLineNo">1511</span> final int e0 = d.getSize() - 1;<a name="line.1511"></a> |
| <span class="sourceLineNo">1512</span> if (i0 < -1 || i0 > e0)<a name="line.1512"></a> |
| <span class="sourceLineNo">1513</span> return 0;<a name="line.1513"></a> |
| <span class="sourceLineNo">1514</span><a name="line.1514"></a> |
| <span class="sourceLineNo">1515</span> final double u0 = x0 - i0;<a name="line.1515"></a> |
| <span class="sourceLineNo">1516</span><a name="line.1516"></a> |
| <span class="sourceLineNo">1517</span> double r = 0;<a name="line.1517"></a> |
| <span class="sourceLineNo">1518</span> final double f1 = i0 < 0 ? 0 : d.getDouble(i0) * m.getDouble(i0);<a name="line.1518"></a> |
| <span class="sourceLineNo">1519</span> if (u0 > 0) {<a name="line.1519"></a> |
| <span class="sourceLineNo">1520</span> r = (1 - u0) * f1 + (i0 == e0 ? 0 : u0 * d.getDouble(i0 + 1) * m.getDouble(i0 + 1));<a name="line.1520"></a> |
| <span class="sourceLineNo">1521</span> } else {<a name="line.1521"></a> |
| <span class="sourceLineNo">1522</span> r = f1;<a name="line.1522"></a> |
| <span class="sourceLineNo">1523</span> }<a name="line.1523"></a> |
| <span class="sourceLineNo">1524</span> return r;<a name="line.1524"></a> |
| <span class="sourceLineNo">1525</span> }<a name="line.1525"></a> |
| <span class="sourceLineNo">1526</span><a name="line.1526"></a> |
| <span class="sourceLineNo">1527</span> /**<a name="line.1527"></a> |
| <span class="sourceLineNo">1528</span> * Linearly interpolate an array of values at a point in a compound 1D dataset. The dataset is<a name="line.1528"></a> |
| <span class="sourceLineNo">1529</span> * considered to have zero support outside its bounds. Thus points just outside are interpolated<a name="line.1529"></a> |
| <span class="sourceLineNo">1530</span> * from the boundary value to zero.<a name="line.1530"></a> |
| <span class="sourceLineNo">1531</span> * @param values interpolated array<a name="line.1531"></a> |
| <span class="sourceLineNo">1532</span> * @param d input dataset<a name="line.1532"></a> |
| <span class="sourceLineNo">1533</span> * @param x0 coordinate<a name="line.1533"></a> |
| <span class="sourceLineNo">1534</span> */<a name="line.1534"></a> |
| <span class="sourceLineNo">1535</span> public static void interpolate(final double[] values, final CompoundDataset d, final double x0) {<a name="line.1535"></a> |
| <span class="sourceLineNo">1536</span> assert d.getRank() == 1;<a name="line.1536"></a> |
| <span class="sourceLineNo">1537</span><a name="line.1537"></a> |
| <span class="sourceLineNo">1538</span> final int is = d.getElementsPerItem();<a name="line.1538"></a> |
| <span class="sourceLineNo">1539</span> if (is != values.length)<a name="line.1539"></a> |
| <span class="sourceLineNo">1540</span> throw new IllegalArgumentException("Output array length must match elements in item");<a name="line.1540"></a> |
| <span class="sourceLineNo">1541</span> final double[] f1, f2;<a name="line.1541"></a> |
| <span class="sourceLineNo">1542</span> <a name="line.1542"></a> |
| <span class="sourceLineNo">1543</span> final int i0 = (int) Math.floor(x0);<a name="line.1543"></a> |
| <span class="sourceLineNo">1544</span> final int e0 = d.getSize() - 1;<a name="line.1544"></a> |
| <span class="sourceLineNo">1545</span> if (i0 < -1 || i0 > e0) {<a name="line.1545"></a> |
| <span class="sourceLineNo">1546</span> Arrays.fill(values, 0);<a name="line.1546"></a> |
| <span class="sourceLineNo">1547</span> return;<a name="line.1547"></a> |
| <span class="sourceLineNo">1548</span> }<a name="line.1548"></a> |
| <span class="sourceLineNo">1549</span> final double u0 = x0 - i0;<a name="line.1549"></a> |
| <span class="sourceLineNo">1550</span> <a name="line.1550"></a> |
| <span class="sourceLineNo">1551</span> if (u0 > 0) {<a name="line.1551"></a> |
| <span class="sourceLineNo">1552</span> f1 = new double[is];<a name="line.1552"></a> |
| <span class="sourceLineNo">1553</span> if (i0 >= 0)<a name="line.1553"></a> |
| <span class="sourceLineNo">1554</span> d.getDoubleArray(f1, i0);<a name="line.1554"></a> |
| <span class="sourceLineNo">1555</span> double t = 1 - u0;<a name="line.1555"></a> |
| <span class="sourceLineNo">1556</span> if (i0 == e0) {<a name="line.1556"></a> |
| <span class="sourceLineNo">1557</span> for (int j = 0; j < is; j++)<a name="line.1557"></a> |
| <span class="sourceLineNo">1558</span> values[j] = t * f1[j];<a name="line.1558"></a> |
| <span class="sourceLineNo">1559</span> } else {<a name="line.1559"></a> |
| <span class="sourceLineNo">1560</span> f2 = new double[is];<a name="line.1560"></a> |
| <span class="sourceLineNo">1561</span> d.getDoubleArray(f2, i0 + 1);<a name="line.1561"></a> |
| <span class="sourceLineNo">1562</span> for (int j = 0; j < is; j++)<a name="line.1562"></a> |
| <span class="sourceLineNo">1563</span> values[j] = t * f1[j] + u0 * f2[j];<a name="line.1563"></a> |
| <span class="sourceLineNo">1564</span> }<a name="line.1564"></a> |
| <span class="sourceLineNo">1565</span> } else {<a name="line.1565"></a> |
| <span class="sourceLineNo">1566</span> if (i0 >= 0)<a name="line.1566"></a> |
| <span class="sourceLineNo">1567</span> d.getDoubleArray(values, i0);<a name="line.1567"></a> |
| <span class="sourceLineNo">1568</span> else<a name="line.1568"></a> |
| <span class="sourceLineNo">1569</span> Arrays.fill(values, 0);<a name="line.1569"></a> |
| <span class="sourceLineNo">1570</span> }<a name="line.1570"></a> |
| <span class="sourceLineNo">1571</span> }<a name="line.1571"></a> |
| <span class="sourceLineNo">1572</span><a name="line.1572"></a> |
| <span class="sourceLineNo">1573</span> /**<a name="line.1573"></a> |
| <span class="sourceLineNo">1574</span> * Linearly interpolate a value at a point in a 2D dataset. The dataset is considered to have<a name="line.1574"></a> |
| <span class="sourceLineNo">1575</span> * zero support outside its bounds. Thus points just outside are interpolated from the boundary<a name="line.1575"></a> |
| <span class="sourceLineNo">1576</span> * value to zero.<a name="line.1576"></a> |
| <span class="sourceLineNo">1577</span> * @param d input dataset<a name="line.1577"></a> |
| <span class="sourceLineNo">1578</span> * @param x0 coordinate<a name="line.1578"></a> |
| <span class="sourceLineNo">1579</span> * @param x1 coordinate<a name="line.1579"></a> |
| <span class="sourceLineNo">1580</span> * @return bilinear interpolation<a name="line.1580"></a> |
| <span class="sourceLineNo">1581</span> */<a name="line.1581"></a> |
| <span class="sourceLineNo">1582</span> public static double interpolate(final Dataset d, final double x0, final double x1) {<a name="line.1582"></a> |
| <span class="sourceLineNo">1583</span> final int[] s = d.getShape();<a name="line.1583"></a> |
| <span class="sourceLineNo">1584</span> assert s.length == 2;<a name="line.1584"></a> |
| <span class="sourceLineNo">1585</span> <a name="line.1585"></a> |
| <span class="sourceLineNo">1586</span> final int e0 = s[0] - 1;<a name="line.1586"></a> |
| <span class="sourceLineNo">1587</span> final int e1 = s[1] - 1;<a name="line.1587"></a> |
| <span class="sourceLineNo">1588</span> final int i0 = (int) Math.floor(x0);<a name="line.1588"></a> |
| <span class="sourceLineNo">1589</span> final int i1 = (int) Math.floor(x1);<a name="line.1589"></a> |
| <span class="sourceLineNo">1590</span> final double u0 = x0 - i0;<a name="line.1590"></a> |
| <span class="sourceLineNo">1591</span> final double u1 = x1 - i1;<a name="line.1591"></a> |
| <span class="sourceLineNo">1592</span> if (i0 < -1 || i0 > e0 || i1 < -1 || i1 > e1)<a name="line.1592"></a> |
| <span class="sourceLineNo">1593</span> return 0;<a name="line.1593"></a> |
| <span class="sourceLineNo">1594</span><a name="line.1594"></a> |
| <span class="sourceLineNo">1595</span> // use bilinear interpolation<a name="line.1595"></a> |
| <span class="sourceLineNo">1596</span> double r = 0;<a name="line.1596"></a> |
| <span class="sourceLineNo">1597</span> final double f1, f2, f3, f4;<a name="line.1597"></a> |
| <span class="sourceLineNo">1598</span> f1 = i0 < 0 || i1 < 0 ? 0 : d.getDouble(i0, i1);<a name="line.1598"></a> |
| <span class="sourceLineNo">1599</span> if (u1 > 0) {<a name="line.1599"></a> |
| <span class="sourceLineNo">1600</span> if (u0 > 0) {<a name="line.1600"></a> |
| <span class="sourceLineNo">1601</span> if (i0 == e0) {<a name="line.1601"></a> |
| <span class="sourceLineNo">1602</span> f2 = 0;<a name="line.1602"></a> |
| <span class="sourceLineNo">1603</span> f4 = 0;<a name="line.1603"></a> |
| <span class="sourceLineNo">1604</span> f3 = i1 == e1 ? 0 : d.getDouble(i0, i1 + 1);<a name="line.1604"></a> |
| <span class="sourceLineNo">1605</span> } else {<a name="line.1605"></a> |
| <span class="sourceLineNo">1606</span> f2 = i1 < 0 ? 0 : d.getDouble(i0 + 1, i1);<a name="line.1606"></a> |
| <span class="sourceLineNo">1607</span> if (i1 == e1) {<a name="line.1607"></a> |
| <span class="sourceLineNo">1608</span> f4 = 0;<a name="line.1608"></a> |
| <span class="sourceLineNo">1609</span> f3 = 0;<a name="line.1609"></a> |
| <span class="sourceLineNo">1610</span> } else {<a name="line.1610"></a> |
| <span class="sourceLineNo">1611</span> f4 = d.getDouble(i0 + 1, i1 + 1);<a name="line.1611"></a> |
| <span class="sourceLineNo">1612</span> f3 = i0 < 0 ? 0 : d.getDouble(i0, i1 + 1);<a name="line.1612"></a> |
| <span class="sourceLineNo">1613</span> }<a name="line.1613"></a> |
| <span class="sourceLineNo">1614</span> }<a name="line.1614"></a> |
| <span class="sourceLineNo">1615</span> r = (1 - u0) * (1 - u1) * f1 + u0 * (1 - u1) * f2 + (1 - u0) * u1 * f3 + u0 * u1 * f4;<a name="line.1615"></a> |
| <span class="sourceLineNo">1616</span> } else {<a name="line.1616"></a> |
| <span class="sourceLineNo">1617</span> f3 = i0 < 0 || i1 == e1 ? 0 : d.getDouble(i0, i1 + 1);<a name="line.1617"></a> |
| <span class="sourceLineNo">1618</span> r = (1 - u1) * f1 + u1 * f3;<a name="line.1618"></a> |
| <span class="sourceLineNo">1619</span> }<a name="line.1619"></a> |
| <span class="sourceLineNo">1620</span> } else { // exactly on axis 1<a name="line.1620"></a> |
| <span class="sourceLineNo">1621</span> if (u0 > 0) {<a name="line.1621"></a> |
| <span class="sourceLineNo">1622</span> f2 = i0 == e0 || i1 < 0 ? 0 : d.getDouble(i0 + 1, i1);<a name="line.1622"></a> |
| <span class="sourceLineNo">1623</span> r = (1 - u0) * f1 + u0 * f2;<a name="line.1623"></a> |
| <span class="sourceLineNo">1624</span> } else { // exactly on axis 0<a name="line.1624"></a> |
| <span class="sourceLineNo">1625</span> r = f1;<a name="line.1625"></a> |
| <span class="sourceLineNo">1626</span> }<a name="line.1626"></a> |
| <span class="sourceLineNo">1627</span> }<a name="line.1627"></a> |
| <span class="sourceLineNo">1628</span> return r;<a name="line.1628"></a> |
| <span class="sourceLineNo">1629</span> }<a name="line.1629"></a> |
| <span class="sourceLineNo">1630</span><a name="line.1630"></a> |
| <span class="sourceLineNo">1631</span> /**<a name="line.1631"></a> |
| <span class="sourceLineNo">1632</span> * Linearly interpolate a value at a point in a 2D dataset with a mask. The dataset is considered<a name="line.1632"></a> |
| <span class="sourceLineNo">1633</span> * to have zero support outside its bounds. Thus points just outside are interpolated from the<a name="line.1633"></a> |
| <span class="sourceLineNo">1634</span> * boundary value to zero.<a name="line.1634"></a> |
| <span class="sourceLineNo">1635</span> * @param d input dataset<a name="line.1635"></a> |
| <span class="sourceLineNo">1636</span> * @param m mask dataset<a name="line.1636"></a> |
| <span class="sourceLineNo">1637</span> * @param x0 coordinate<a name="line.1637"></a> |
| <span class="sourceLineNo">1638</span> * @param x1 coordinate<a name="line.1638"></a> |
| <span class="sourceLineNo">1639</span> * @return bilinear interpolation<a name="line.1639"></a> |
| <span class="sourceLineNo">1640</span> */<a name="line.1640"></a> |
| <span class="sourceLineNo">1641</span> public static double interpolate(final Dataset d, final Dataset m, final double x0, final double x1) {<a name="line.1641"></a> |
| <span class="sourceLineNo">1642</span> if (m == null)<a name="line.1642"></a> |
| <span class="sourceLineNo">1643</span> return interpolate(d, x0, x1);<a name="line.1643"></a> |
| <span class="sourceLineNo">1644</span> <a name="line.1644"></a> |
| <span class="sourceLineNo">1645</span> final int[] s = d.getShape();<a name="line.1645"></a> |
| <span class="sourceLineNo">1646</span> assert s.length == 2;<a name="line.1646"></a> |
| <span class="sourceLineNo">1647</span> assert m.getRank() == 2;<a name="line.1647"></a> |
| <span class="sourceLineNo">1648</span><a name="line.1648"></a> |
| <span class="sourceLineNo">1649</span> final int e0 = s[0] - 1;<a name="line.1649"></a> |
| <span class="sourceLineNo">1650</span> final int e1 = s[1] - 1;<a name="line.1650"></a> |
| <span class="sourceLineNo">1651</span> final int i0 = (int) Math.floor(x0);<a name="line.1651"></a> |
| <span class="sourceLineNo">1652</span> final int i1 = (int) Math.floor(x1);<a name="line.1652"></a> |
| <span class="sourceLineNo">1653</span> final double u0 = x0 - i0;<a name="line.1653"></a> |
| <span class="sourceLineNo">1654</span> final double u1 = x1 - i1;<a name="line.1654"></a> |
| <span class="sourceLineNo">1655</span> if (i0 < -1 || i0 > e0 || i1 < -1 || i1 > e1)<a name="line.1655"></a> |
| <span class="sourceLineNo">1656</span> return 0;<a name="line.1656"></a> |
| <span class="sourceLineNo">1657</span><a name="line.1657"></a> |
| <span class="sourceLineNo">1658</span> // use bilinear interpolation<a name="line.1658"></a> |
| <span class="sourceLineNo">1659</span> double r = 0;<a name="line.1659"></a> |
| <span class="sourceLineNo">1660</span> final double f1, f2, f3, f4;<a name="line.1660"></a> |
| <span class="sourceLineNo">1661</span> f1 = i0 < 0 || i1 < 0 ? 0 : d.getDouble(i0, i1) * m.getDouble(i0, i1);<a name="line.1661"></a> |
| <span class="sourceLineNo">1662</span> if (u1 > 0) {<a name="line.1662"></a> |
| <span class="sourceLineNo">1663</span> if (i0 == e0) {<a name="line.1663"></a> |
| <span class="sourceLineNo">1664</span> f2 = 0;<a name="line.1664"></a> |
| <span class="sourceLineNo">1665</span> f4 = 0;<a name="line.1665"></a> |
| <span class="sourceLineNo">1666</span> f3 = i1 == e1 ? 0 : d.getDouble(i0, i1 + 1) * m.getDouble(i0, i1 + 1);<a name="line.1666"></a> |
| <span class="sourceLineNo">1667</span> } else {<a name="line.1667"></a> |
| <span class="sourceLineNo">1668</span> f2 = i1 < 0 ? 0 : d.getDouble(i0 + 1, i1) * m.getDouble(i0 + 1, i1);<a name="line.1668"></a> |
| <span class="sourceLineNo">1669</span> if (i1 == e1) {<a name="line.1669"></a> |
| <span class="sourceLineNo">1670</span> f4 = 0;<a name="line.1670"></a> |
| <span class="sourceLineNo">1671</span> f3 = 0;<a name="line.1671"></a> |
| <span class="sourceLineNo">1672</span> } else {<a name="line.1672"></a> |
| <span class="sourceLineNo">1673</span> f4 = d.getDouble(i0 + 1, i1 + 1) * m.getDouble(i0 + 1, i1 + 1);<a name="line.1673"></a> |
| <span class="sourceLineNo">1674</span> f3 = i0 < 0 ? 0 : d.getDouble(i0, i1 + 1) * m.getDouble(i0, i1 + 1);<a name="line.1674"></a> |
| <span class="sourceLineNo">1675</span> }<a name="line.1675"></a> |
| <span class="sourceLineNo">1676</span> }<a name="line.1676"></a> |
| <span class="sourceLineNo">1677</span> r = (1 - u0) * (1 - u1) * f1 + u0 * (1 - u1) * f2 + (1 - u0) * u1 * f3 + u0 * u1 * f4;<a name="line.1677"></a> |
| <span class="sourceLineNo">1678</span> } else { // exactly on axis 1<a name="line.1678"></a> |
| <span class="sourceLineNo">1679</span> if (u0 > 0) {<a name="line.1679"></a> |
| <span class="sourceLineNo">1680</span> f2 = i0 == e0 || i1 < 0 ? 0 : d.getDouble(i0 + 1, i1) * m.getDouble(i0 + 1, i1);<a name="line.1680"></a> |
| <span class="sourceLineNo">1681</span> r = (1 - u0) * f1 + u0 * f2;<a name="line.1681"></a> |
| <span class="sourceLineNo">1682</span> } else { // exactly on axis 0<a name="line.1682"></a> |
| <span class="sourceLineNo">1683</span> r = f1;<a name="line.1683"></a> |
| <span class="sourceLineNo">1684</span> }<a name="line.1684"></a> |
| <span class="sourceLineNo">1685</span> }<a name="line.1685"></a> |
| <span class="sourceLineNo">1686</span> return r;<a name="line.1686"></a> |
| <span class="sourceLineNo">1687</span> }<a name="line.1687"></a> |
| <span class="sourceLineNo">1688</span><a name="line.1688"></a> |
| <span class="sourceLineNo">1689</span> /**<a name="line.1689"></a> |
| <span class="sourceLineNo">1690</span> * Linearly interpolate an array of values at a point in a compound 2D dataset. The dataset is<a name="line.1690"></a> |
| <span class="sourceLineNo">1691</span> * considered to have zero support outside its bounds. Thus points just outside are interpolated<a name="line.1691"></a> |
| <span class="sourceLineNo">1692</span> * from the boundary value to zero.<a name="line.1692"></a> |
| <span class="sourceLineNo">1693</span> * @param values bilinear interpolated array<a name="line.1693"></a> |
| <span class="sourceLineNo">1694</span> * @param d<a name="line.1694"></a> |
| <span class="sourceLineNo">1695</span> * @param x0<a name="line.1695"></a> |
| <span class="sourceLineNo">1696</span> * @param x1<a name="line.1696"></a> |
| <span class="sourceLineNo">1697</span> */<a name="line.1697"></a> |
| <span class="sourceLineNo">1698</span> public static void interpolate(final double[] values, final CompoundDataset d, final double x0, final double x1) {<a name="line.1698"></a> |
| <span class="sourceLineNo">1699</span> final int[] s = d.getShapeRef();<a name="line.1699"></a> |
| <span class="sourceLineNo">1700</span> assert s.length == 2;<a name="line.1700"></a> |
| <span class="sourceLineNo">1701</span><a name="line.1701"></a> |
| <span class="sourceLineNo">1702</span> final int is = d.getElementsPerItem();<a name="line.1702"></a> |
| <span class="sourceLineNo">1703</span> if (is != values.length)<a name="line.1703"></a> |
| <span class="sourceLineNo">1704</span> throw new IllegalArgumentException("Output array length must match elements in item");<a name="line.1704"></a> |
| <span class="sourceLineNo">1705</span><a name="line.1705"></a> |
| <span class="sourceLineNo">1706</span> final int e0 = s[0] - 1;<a name="line.1706"></a> |
| <span class="sourceLineNo">1707</span> final int e1 = s[1] - 1;<a name="line.1707"></a> |
| <span class="sourceLineNo">1708</span> final int i0 = (int) Math.floor(x0);<a name="line.1708"></a> |
| <span class="sourceLineNo">1709</span> final int i1 = (int) Math.floor(x1);<a name="line.1709"></a> |
| <span class="sourceLineNo">1710</span> final double u0 = x0 - i0;<a name="line.1710"></a> |
| <span class="sourceLineNo">1711</span> final double u1 = x1 - i1;<a name="line.1711"></a> |
| <span class="sourceLineNo">1712</span> if (i0 < -1 || i0 > e0 || i1 < -1 || i1 > e1) {<a name="line.1712"></a> |
| <span class="sourceLineNo">1713</span> Arrays.fill(values, 0);<a name="line.1713"></a> |
| <span class="sourceLineNo">1714</span> return;<a name="line.1714"></a> |
| <span class="sourceLineNo">1715</span> }<a name="line.1715"></a> |
| <span class="sourceLineNo">1716</span> // use bilinear interpolation<a name="line.1716"></a> |
| <span class="sourceLineNo">1717</span> double[] f1 = new double[is];<a name="line.1717"></a> |
| <span class="sourceLineNo">1718</span> if (i0 >= 0 && i1 >= 0)<a name="line.1718"></a> |
| <span class="sourceLineNo">1719</span> d.getDoubleArray(f1, i0, i1);<a name="line.1719"></a> |
| <span class="sourceLineNo">1720</span> <a name="line.1720"></a> |
| <span class="sourceLineNo">1721</span> if (u1 > 0) {<a name="line.1721"></a> |
| <span class="sourceLineNo">1722</span> if (u0 > 0) {<a name="line.1722"></a> |
| <span class="sourceLineNo">1723</span> double[] f2 = new double[is];<a name="line.1723"></a> |
| <span class="sourceLineNo">1724</span> double[] f3 = new double[is];<a name="line.1724"></a> |
| <span class="sourceLineNo">1725</span> double[] f4 = new double[is];<a name="line.1725"></a> |
| <span class="sourceLineNo">1726</span> if (i0 != e0) {<a name="line.1726"></a> |
| <span class="sourceLineNo">1727</span> if (i1 != e1)<a name="line.1727"></a> |
| <span class="sourceLineNo">1728</span> d.getDoubleArray(f3, i0 + 1, i1 + 1);<a name="line.1728"></a> |
| <span class="sourceLineNo">1729</span> if (i1 >= 0)<a name="line.1729"></a> |
| <span class="sourceLineNo">1730</span> d.getDoubleArray(f4, i0 + 1, i1);<a name="line.1730"></a> |
| <span class="sourceLineNo">1731</span> }<a name="line.1731"></a> |
| <span class="sourceLineNo">1732</span> if (i0 >= 0 && i1 != e1)<a name="line.1732"></a> |
| <span class="sourceLineNo">1733</span> d.getDoubleArray(f2, i0, i1 + 1);<a name="line.1733"></a> |
| <span class="sourceLineNo">1734</span> final double t0 = 1 - u0;<a name="line.1734"></a> |
| <span class="sourceLineNo">1735</span> final double t1 = 1 - u1;<a name="line.1735"></a> |
| <span class="sourceLineNo">1736</span> final double w1 = t0 * t1;<a name="line.1736"></a> |
| <span class="sourceLineNo">1737</span> final double w2 = t0 * u1;<a name="line.1737"></a> |
| <span class="sourceLineNo">1738</span> final double w3 = u0 * u1;<a name="line.1738"></a> |
| <span class="sourceLineNo">1739</span> final double w4 = u0 * t1;<a name="line.1739"></a> |
| <span class="sourceLineNo">1740</span> for (int j = 0; j < is; j++)<a name="line.1740"></a> |
| <span class="sourceLineNo">1741</span> values[j] = w1 * f1[j] + w2 * f2[j] + w3 * f3[j] + w4 * f4[j];<a name="line.1741"></a> |
| <span class="sourceLineNo">1742</span> } else {<a name="line.1742"></a> |
| <span class="sourceLineNo">1743</span> double[] f2 = new double[is];<a name="line.1743"></a> |
| <span class="sourceLineNo">1744</span> if (i0 >= 0 && i1 != e1)<a name="line.1744"></a> |
| <span class="sourceLineNo">1745</span> d.getDoubleArray(f2, i0, i1 + 1);<a name="line.1745"></a> |
| <span class="sourceLineNo">1746</span> final double t1 = 1 - u1;<a name="line.1746"></a> |
| <span class="sourceLineNo">1747</span> for (int j = 0; j < is; j++)<a name="line.1747"></a> |
| <span class="sourceLineNo">1748</span> values[j] = t1 * f1[j] + u1 * f2[j];<a name="line.1748"></a> |
| <span class="sourceLineNo">1749</span> }<a name="line.1749"></a> |
| <span class="sourceLineNo">1750</span> } else { // exactly on axis 1<a name="line.1750"></a> |
| <span class="sourceLineNo">1751</span> if (u0 > 0) {<a name="line.1751"></a> |
| <span class="sourceLineNo">1752</span> double[] f4 = new double[is];<a name="line.1752"></a> |
| <span class="sourceLineNo">1753</span> if (i0 != e0 && i1 >= 0)<a name="line.1753"></a> |
| <span class="sourceLineNo">1754</span> d.getDoubleArray(f4, i0 + 1, i1);<a name="line.1754"></a> |
| <span class="sourceLineNo">1755</span> final double t0 = 1 - u0;<a name="line.1755"></a> |
| <span class="sourceLineNo">1756</span> for (int j = 0; j < is; j++)<a name="line.1756"></a> |
| <span class="sourceLineNo">1757</span> values[j] = t0 * f1[j] + u0 * f4[j];<a name="line.1757"></a> |
| <span class="sourceLineNo">1758</span> } else { // exactly on axis 0<a name="line.1758"></a> |
| <span class="sourceLineNo">1759</span> if (i0 >= 0 && i1 >= 0)<a name="line.1759"></a> |
| <span class="sourceLineNo">1760</span> d.getDoubleArray(values, i0, i1);<a name="line.1760"></a> |
| <span class="sourceLineNo">1761</span> else<a name="line.1761"></a> |
| <span class="sourceLineNo">1762</span> Arrays.fill(values, 0);<a name="line.1762"></a> |
| <span class="sourceLineNo">1763</span> }<a name="line.1763"></a> |
| <span class="sourceLineNo">1764</span> }<a name="line.1764"></a> |
| <span class="sourceLineNo">1765</span> }<a name="line.1765"></a> |
| <span class="sourceLineNo">1766</span><a name="line.1766"></a> |
| <span class="sourceLineNo">1767</span> /**<a name="line.1767"></a> |
| <span class="sourceLineNo">1768</span> * Linearly interpolate a value at a point in a n-D dataset. The dataset is considered to have<a name="line.1768"></a> |
| <span class="sourceLineNo">1769</span> * zero support outside its bounds. Thus points just outside are interpolated from the boundary<a name="line.1769"></a> |
| <span class="sourceLineNo">1770</span> * value to zero. The number of coordinates must match the rank of the dataset.<a name="line.1770"></a> |
| <span class="sourceLineNo">1771</span> * @param d input dataset<a name="line.1771"></a> |
| <span class="sourceLineNo">1772</span> * @param x coordinates<a name="line.1772"></a> |
| <span class="sourceLineNo">1773</span> * @return interpolated value<a name="line.1773"></a> |
| <span class="sourceLineNo">1774</span> */<a name="line.1774"></a> |
| <span class="sourceLineNo">1775</span> public static double interpolate(final Dataset d, final double... x) {<a name="line.1775"></a> |
| <span class="sourceLineNo">1776</span> return interpolate(d, null, x);<a name="line.1776"></a> |
| <span class="sourceLineNo">1777</span> }<a name="line.1777"></a> |
| <span class="sourceLineNo">1778</span><a name="line.1778"></a> |
| <span class="sourceLineNo">1779</span> /**<a name="line.1779"></a> |
| <span class="sourceLineNo">1780</span> * Linearly interpolate a value at a point in a n-D dataset with a mask. The dataset is considered to have<a name="line.1780"></a> |
| <span class="sourceLineNo">1781</span> * zero support outside its bounds. Thus points just outside are interpolated from the boundary<a name="line.1781"></a> |
| <span class="sourceLineNo">1782</span> * value to zero. The number of coordinates must match the rank of the dataset.<a name="line.1782"></a> |
| <span class="sourceLineNo">1783</span> * @param d input dataset<a name="line.1783"></a> |
| <span class="sourceLineNo">1784</span> * @param m mask dataset (can be null)<a name="line.1784"></a> |
| <span class="sourceLineNo">1785</span> * @param x coordinates<a name="line.1785"></a> |
| <span class="sourceLineNo">1786</span> * @return interpolated value<a name="line.1786"></a> |
| <span class="sourceLineNo">1787</span> */<a name="line.1787"></a> |
| <span class="sourceLineNo">1788</span> public static double interpolate(final Dataset d, final Dataset m, final double... x) {<a name="line.1788"></a> |
| <span class="sourceLineNo">1789</span> int r = d.getRank();<a name="line.1789"></a> |
| <span class="sourceLineNo">1790</span> if (r != x.length) {<a name="line.1790"></a> |
| <span class="sourceLineNo">1791</span> throw new IllegalArgumentException("Number of coordinates must be equal to rank of dataset");<a name="line.1791"></a> |
| <span class="sourceLineNo">1792</span> }<a name="line.1792"></a> |
| <span class="sourceLineNo">1793</span><a name="line.1793"></a> |
| <span class="sourceLineNo">1794</span> switch (r) {<a name="line.1794"></a> |
| <span class="sourceLineNo">1795</span> case 1:<a name="line.1795"></a> |
| <span class="sourceLineNo">1796</span> return m == null ? interpolate(d, x[0]) : interpolate(d, m, x[0]);<a name="line.1796"></a> |
| <span class="sourceLineNo">1797</span> case 2:<a name="line.1797"></a> |
| <span class="sourceLineNo">1798</span> return m == null ? interpolate(d, x[0], x[1]) : interpolate(d, m, x[0], x[1]);<a name="line.1798"></a> |
| <span class="sourceLineNo">1799</span> }<a name="line.1799"></a> |
| <span class="sourceLineNo">1800</span><a name="line.1800"></a> |
| <span class="sourceLineNo">1801</span> if (m != null && r != m.getRank()) {<a name="line.1801"></a> |
| <span class="sourceLineNo">1802</span> throw new IllegalArgumentException("Rank of mask dataset must be equal to rank of dataset");<a name="line.1802"></a> |
| <span class="sourceLineNo">1803</span> }<a name="line.1803"></a> |
| <span class="sourceLineNo">1804</span><a name="line.1804"></a> |
| <span class="sourceLineNo">1805</span> // now do it iteratively<a name="line.1805"></a> |
| <span class="sourceLineNo">1806</span> int[] l = new int[r]; // lower indexes<a name="line.1806"></a> |
| <span class="sourceLineNo">1807</span> double[] f = new double[r]; // fractions<a name="line.1807"></a> |
| <span class="sourceLineNo">1808</span> for (int i = 0; i < r; i++) {<a name="line.1808"></a> |
| <span class="sourceLineNo">1809</span> double xi = x[i];<a name="line.1809"></a> |
| <span class="sourceLineNo">1810</span> l[i] = (int) Math.floor(xi);<a name="line.1810"></a> |
| <span class="sourceLineNo">1811</span> f[i] = xi - l[i];<a name="line.1811"></a> |
| <span class="sourceLineNo">1812</span> }<a name="line.1812"></a> |
| <span class="sourceLineNo">1813</span><a name="line.1813"></a> |
| <span class="sourceLineNo">1814</span> int[] s = d.getShape();<a name="line.1814"></a> |
| <span class="sourceLineNo">1815</span> <a name="line.1815"></a> |
| <span class="sourceLineNo">1816</span> int n = 1 << r;<a name="line.1816"></a> |
| <span class="sourceLineNo">1817</span> double[] results = new double[n];<a name="line.1817"></a> |
| <span class="sourceLineNo">1818</span><a name="line.1818"></a> |
| <span class="sourceLineNo">1819</span> // iterate over permutations {l} and {l+1}<a name="line.1819"></a> |
| <span class="sourceLineNo">1820</span> int[] twos = new int[r];<a name="line.1820"></a> |
| <span class="sourceLineNo">1821</span> Arrays.fill(twos, 2);<a name="line.1821"></a> |
| <span class="sourceLineNo">1822</span> PositionIterator it = new PositionIterator(twos);<a name="line.1822"></a> |
| <span class="sourceLineNo">1823</span> int[] ip = it.getPos();<a name="line.1823"></a> |
| <span class="sourceLineNo">1824</span> int j = 0;<a name="line.1824"></a> |
| <span class="sourceLineNo">1825</span> if (m == null) {<a name="line.1825"></a> |
| <span class="sourceLineNo">1826</span> while (it.hasNext()) {<a name="line.1826"></a> |
| <span class="sourceLineNo">1827</span> int[] p = l.clone();<a name="line.1827"></a> |
| <span class="sourceLineNo">1828</span> boolean omit = false;<a name="line.1828"></a> |
| <span class="sourceLineNo">1829</span> for (int i = 0; i < r; i++) {<a name="line.1829"></a> |
| <span class="sourceLineNo">1830</span> int pi = p[i] + ip[i];<a name="line.1830"></a> |
| <span class="sourceLineNo">1831</span> if (pi < 0 || pi >= s[i]) {<a name="line.1831"></a> |
| <span class="sourceLineNo">1832</span> omit = true;<a name="line.1832"></a> |
| <span class="sourceLineNo">1833</span> break;<a name="line.1833"></a> |
| <span class="sourceLineNo">1834</span> }<a name="line.1834"></a> |
| <span class="sourceLineNo">1835</span> p[i] = pi;<a name="line.1835"></a> |
| <span class="sourceLineNo">1836</span> }<a name="line.1836"></a> |
| <span class="sourceLineNo">1837</span> results[j++] = omit ? 0 : d.getDouble(p);<a name="line.1837"></a> |
| <span class="sourceLineNo">1838</span> }<a name="line.1838"></a> |
| <span class="sourceLineNo">1839</span> } else {<a name="line.1839"></a> |
| <span class="sourceLineNo">1840</span> while (it.hasNext()) {<a name="line.1840"></a> |
| <span class="sourceLineNo">1841</span> int[] p = l.clone();<a name="line.1841"></a> |
| <span class="sourceLineNo">1842</span> boolean omit = false;<a name="line.1842"></a> |
| <span class="sourceLineNo">1843</span> for (int i = 0; i < r; i++) {<a name="line.1843"></a> |
| <span class="sourceLineNo">1844</span> int pi = p[i] + ip[i];<a name="line.1844"></a> |
| <span class="sourceLineNo">1845</span> if (pi < 0 || pi >= s[i]) {<a name="line.1845"></a> |
| <span class="sourceLineNo">1846</span> omit = true;<a name="line.1846"></a> |
| <span class="sourceLineNo">1847</span> break;<a name="line.1847"></a> |
| <span class="sourceLineNo">1848</span> }<a name="line.1848"></a> |
| <span class="sourceLineNo">1849</span> p[i] = pi;<a name="line.1849"></a> |
| <span class="sourceLineNo">1850</span> }<a name="line.1850"></a> |
| <span class="sourceLineNo">1851</span> results[j++] = omit ? 0 : d.getDouble(p) * m.getDouble(p);<a name="line.1851"></a> |
| <span class="sourceLineNo">1852</span> }<a name="line.1852"></a> |
| <span class="sourceLineNo">1853</span> }<a name="line.1853"></a> |
| <span class="sourceLineNo">1854</span><a name="line.1854"></a> |
| <span class="sourceLineNo">1855</span> // reduce recursively<a name="line.1855"></a> |
| <span class="sourceLineNo">1856</span> for (int i = r - 1; i >= 0; i--) {<a name="line.1856"></a> |
| <span class="sourceLineNo">1857</span> results = combine(results, f[i], 1 << i);<a name="line.1857"></a> |
| <span class="sourceLineNo">1858</span> }<a name="line.1858"></a> |
| <span class="sourceLineNo">1859</span> return results[0];<a name="line.1859"></a> |
| <span class="sourceLineNo">1860</span> }<a name="line.1860"></a> |
| <span class="sourceLineNo">1861</span><a name="line.1861"></a> |
| <span class="sourceLineNo">1862</span> private static double[] combine(double[] values, double f, int n) {<a name="line.1862"></a> |
| <span class="sourceLineNo">1863</span> double g = 1 - f;<a name="line.1863"></a> |
| <span class="sourceLineNo">1864</span> double[] results = new double[n];<a name="line.1864"></a> |
| <span class="sourceLineNo">1865</span> for (int j = 0; j < n; j++) {<a name="line.1865"></a> |
| <span class="sourceLineNo">1866</span> int tj = 2 * j;<a name="line.1866"></a> |
| <span class="sourceLineNo">1867</span> results[j] = g * values[tj] + f * values[tj + 1];<a name="line.1867"></a> |
| <span class="sourceLineNo">1868</span> }<a name="line.1868"></a> |
| <span class="sourceLineNo">1869</span><a name="line.1869"></a> |
| <span class="sourceLineNo">1870</span> return results;<a name="line.1870"></a> |
| <span class="sourceLineNo">1871</span> }<a name="line.1871"></a> |
| <span class="sourceLineNo">1872</span><a name="line.1872"></a> |
| <span class="sourceLineNo">1873</span> /**<a name="line.1873"></a> |
| <span class="sourceLineNo">1874</span> * Linearly interpolate an array of values at a point in a compound n-D dataset. The dataset is<a name="line.1874"></a> |
| <span class="sourceLineNo">1875</span> * considered to have zero support outside its bounds. Thus points just outside are interpolated<a name="line.1875"></a> |
| <span class="sourceLineNo">1876</span> * from the boundary value to zero.<a name="line.1876"></a> |
| <span class="sourceLineNo">1877</span> * @param values linearly interpolated array<a name="line.1877"></a> |
| <span class="sourceLineNo">1878</span> * @param d<a name="line.1878"></a> |
| <span class="sourceLineNo">1879</span> * @param x<a name="line.1879"></a> |
| <span class="sourceLineNo">1880</span> */<a name="line.1880"></a> |
| <span class="sourceLineNo">1881</span> public static void interpolate(final double[] values, final CompoundDataset d, final double... x) {<a name="line.1881"></a> |
| <span class="sourceLineNo">1882</span> int r = d.getRank();<a name="line.1882"></a> |
| <span class="sourceLineNo">1883</span> if (r != x.length) {<a name="line.1883"></a> |
| <span class="sourceLineNo">1884</span> throw new IllegalArgumentException("Number of coordinates must be equal to rank of dataset");<a name="line.1884"></a> |
| <span class="sourceLineNo">1885</span> }<a name="line.1885"></a> |
| <span class="sourceLineNo">1886</span><a name="line.1886"></a> |
| <span class="sourceLineNo">1887</span> switch (r) {<a name="line.1887"></a> |
| <span class="sourceLineNo">1888</span> case 1:<a name="line.1888"></a> |
| <span class="sourceLineNo">1889</span> interpolate(values, d, x[0]);<a name="line.1889"></a> |
| <span class="sourceLineNo">1890</span> return;<a name="line.1890"></a> |
| <span class="sourceLineNo">1891</span> case 2:<a name="line.1891"></a> |
| <span class="sourceLineNo">1892</span> interpolate(values, d, x[0], x[1]);<a name="line.1892"></a> |
| <span class="sourceLineNo">1893</span> return;<a name="line.1893"></a> |
| <span class="sourceLineNo">1894</span> }<a name="line.1894"></a> |
| <span class="sourceLineNo">1895</span><a name="line.1895"></a> |
| <span class="sourceLineNo">1896</span> final int is = d.getElementsPerItem();<a name="line.1896"></a> |
| <span class="sourceLineNo">1897</span> if (is != values.length)<a name="line.1897"></a> |
| <span class="sourceLineNo">1898</span> throw new IllegalArgumentException("Output array length must match elements in item");<a name="line.1898"></a> |
| <span class="sourceLineNo">1899</span><a name="line.1899"></a> |
| <span class="sourceLineNo">1900</span> // now do it iteratively<a name="line.1900"></a> |
| <span class="sourceLineNo">1901</span> int[] l = new int[r]; // lower indexes<a name="line.1901"></a> |
| <span class="sourceLineNo">1902</span> double[] f = new double[r]; // fractions<a name="line.1902"></a> |
| <span class="sourceLineNo">1903</span> for (int i = 0; i < r; i++) {<a name="line.1903"></a> |
| <span class="sourceLineNo">1904</span> double xi = x[i];<a name="line.1904"></a> |
| <span class="sourceLineNo">1905</span> l[i] = (int) Math.floor(xi);<a name="line.1905"></a> |
| <span class="sourceLineNo">1906</span> f[i] = xi - l[i];<a name="line.1906"></a> |
| <span class="sourceLineNo">1907</span> }<a name="line.1907"></a> |
| <span class="sourceLineNo">1908</span><a name="line.1908"></a> |
| <span class="sourceLineNo">1909</span> int[] s = d.getShape();<a name="line.1909"></a> |
| <span class="sourceLineNo">1910</span> <a name="line.1910"></a> |
| <span class="sourceLineNo">1911</span> int n = 1 << r;<a name="line.1911"></a> |
| <span class="sourceLineNo">1912</span> double[][] results = new double[n][is];<a name="line.1912"></a> |
| <span class="sourceLineNo">1913</span><a name="line.1913"></a> |
| <span class="sourceLineNo">1914</span> // iterate over permutations {l} and {l+1}<a name="line.1914"></a> |
| <span class="sourceLineNo">1915</span> int[] twos = new int[r];<a name="line.1915"></a> |
| <span class="sourceLineNo">1916</span> Arrays.fill(twos, 2);<a name="line.1916"></a> |
| <span class="sourceLineNo">1917</span> PositionIterator it = new PositionIterator(twos);<a name="line.1917"></a> |
| <span class="sourceLineNo">1918</span> int[] ip = it.getPos();<a name="line.1918"></a> |
| <span class="sourceLineNo">1919</span> int j = 0;<a name="line.1919"></a> |
| <span class="sourceLineNo">1920</span> while (it.hasNext()) {<a name="line.1920"></a> |
| <span class="sourceLineNo">1921</span> int[] p = l.clone();<a name="line.1921"></a> |
| <span class="sourceLineNo">1922</span> boolean omit = false;<a name="line.1922"></a> |
| <span class="sourceLineNo">1923</span> for (int i = 0; i < r; i++) {<a name="line.1923"></a> |
| <span class="sourceLineNo">1924</span> int pi = p[i] + ip[i];<a name="line.1924"></a> |
| <span class="sourceLineNo">1925</span> if (pi < 0 || pi >= s[i]) {<a name="line.1925"></a> |
| <span class="sourceLineNo">1926</span> omit = true;<a name="line.1926"></a> |
| <span class="sourceLineNo">1927</span> break;<a name="line.1927"></a> |
| <span class="sourceLineNo">1928</span> }<a name="line.1928"></a> |
| <span class="sourceLineNo">1929</span> p[i] = pi;<a name="line.1929"></a> |
| <span class="sourceLineNo">1930</span> }<a name="line.1930"></a> |
| <span class="sourceLineNo">1931</span> if (!omit) {<a name="line.1931"></a> |
| <span class="sourceLineNo">1932</span> d.getDoubleArray(results[j++], p);<a name="line.1932"></a> |
| <span class="sourceLineNo">1933</span> }<a name="line.1933"></a> |
| <span class="sourceLineNo">1934</span> }<a name="line.1934"></a> |
| <span class="sourceLineNo">1935</span><a name="line.1935"></a> |
| <span class="sourceLineNo">1936</span> // reduce recursively<a name="line.1936"></a> |
| <span class="sourceLineNo">1937</span> for (int i = r - 1; i >= 0; i--) {<a name="line.1937"></a> |
| <span class="sourceLineNo">1938</span> results = combineArray(is, results, f[i], 1 << i);<a name="line.1938"></a> |
| <span class="sourceLineNo">1939</span> }<a name="line.1939"></a> |
| <span class="sourceLineNo">1940</span> for (int k = 0; k < is; k++) {<a name="line.1940"></a> |
| <span class="sourceLineNo">1941</span> values[k] = results[0][k];<a name="line.1941"></a> |
| <span class="sourceLineNo">1942</span> }<a name="line.1942"></a> |
| <span class="sourceLineNo">1943</span> }<a name="line.1943"></a> |
| <span class="sourceLineNo">1944</span><a name="line.1944"></a> |
| <span class="sourceLineNo">1945</span> private static double[][] combineArray(int is, double[][] values, double f, int n) {<a name="line.1945"></a> |
| <span class="sourceLineNo">1946</span> double g = 1 - f;<a name="line.1946"></a> |
| <span class="sourceLineNo">1947</span> double[][] results = new double[n][is];<a name="line.1947"></a> |
| <span class="sourceLineNo">1948</span> for (int j = 0; j < n; j++) {<a name="line.1948"></a> |
| <span class="sourceLineNo">1949</span> int tj = 2 * j;<a name="line.1949"></a> |
| <span class="sourceLineNo">1950</span> for (int k = 0; k < is; k++) {<a name="line.1950"></a> |
| <span class="sourceLineNo">1951</span> results[j][k] = g * values[tj][k] + f * values[tj + 1][k];<a name="line.1951"></a> |
| <span class="sourceLineNo">1952</span> }<a name="line.1952"></a> |
| <span class="sourceLineNo">1953</span> }<a name="line.1953"></a> |
| <span class="sourceLineNo">1954</span><a name="line.1954"></a> |
| <span class="sourceLineNo">1955</span> return results;<a name="line.1955"></a> |
| <span class="sourceLineNo">1956</span> }<a name="line.1956"></a> |
| <span class="sourceLineNo">1957</span><a name="line.1957"></a> |
| <span class="sourceLineNo">1958</span> /**<a name="line.1958"></a> |
| <span class="sourceLineNo">1959</span> * Linearly interpolate a value at a point in a 1D dataset. The dataset is considered to have<a name="line.1959"></a> |
| <span class="sourceLineNo">1960</span> * zero support outside its bounds. Thus points just outside are interpolated from the boundary<a name="line.1960"></a> |
| <span class="sourceLineNo">1961</span> * value to zero.<a name="line.1961"></a> |
| <span class="sourceLineNo">1962</span> * @param d input dataset<a name="line.1962"></a> |
| <span class="sourceLineNo">1963</span> * @param x0 coordinate<a name="line.1963"></a> |
| <span class="sourceLineNo">1964</span> * @return interpolated value<a name="line.1964"></a> |
| <span class="sourceLineNo">1965</span> * @deprecated Use {@link #interpolate(Dataset, double)}<a name="line.1965"></a> |
| <span class="sourceLineNo">1966</span> */<a name="line.1966"></a> |
| <span class="sourceLineNo">1967</span> @Deprecated<a name="line.1967"></a> |
| <span class="sourceLineNo">1968</span> public static double getLinear(final IDataset d, final double x0) {<a name="line.1968"></a> |
| <span class="sourceLineNo">1969</span> return interpolate(DatasetUtils.convertToDataset(d), x0);<a name="line.1969"></a> |
| <span class="sourceLineNo">1970</span> }<a name="line.1970"></a> |
| <span class="sourceLineNo">1971</span><a name="line.1971"></a> |
| <span class="sourceLineNo">1972</span> /**<a name="line.1972"></a> |
| <span class="sourceLineNo">1973</span> * Linearly interpolate a value at a point in a compound 1D dataset. The dataset is considered<a name="line.1973"></a> |
| <span class="sourceLineNo">1974</span> * to have zero support outside its bounds. Thus points just outside are interpolated from the<a name="line.1974"></a> |
| <span class="sourceLineNo">1975</span> * boundary value to zero.<a name="line.1975"></a> |
| <span class="sourceLineNo">1976</span> * @param values interpolated array<a name="line.1976"></a> |
| <span class="sourceLineNo">1977</span> * @param d input dataset<a name="line.1977"></a> |
| <span class="sourceLineNo">1978</span> * @param x0 coordinate<a name="line.1978"></a> |
| <span class="sourceLineNo">1979</span> * @deprecated Use {@link #interpolate(double[], CompoundDataset, double)}<a name="line.1979"></a> |
| <span class="sourceLineNo">1980</span> */<a name="line.1980"></a> |
| <span class="sourceLineNo">1981</span> @Deprecated<a name="line.1981"></a> |
| <span class="sourceLineNo">1982</span> public static void getLinear(final double[] values, final CompoundDataset d, final double x0) {<a name="line.1982"></a> |
| <span class="sourceLineNo">1983</span> interpolate(values, d, x0);<a name="line.1983"></a> |
| <span class="sourceLineNo">1984</span> }<a name="line.1984"></a> |
| <span class="sourceLineNo">1985</span><a name="line.1985"></a> |
| <span class="sourceLineNo">1986</span> /**<a name="line.1986"></a> |
| <span class="sourceLineNo">1987</span> * Interpolated a value from 2D dataset<a name="line.1987"></a> |
| <span class="sourceLineNo">1988</span> * @param d input dataset<a name="line.1988"></a> |
| <span class="sourceLineNo">1989</span> * @param x0 coordinate<a name="line.1989"></a> |
| <span class="sourceLineNo">1990</span> * @param x1 coordinate<a name="line.1990"></a> |
| <span class="sourceLineNo">1991</span> * @return bilinear interpolation<a name="line.1991"></a> |
| <span class="sourceLineNo">1992</span> * @deprecated Use {@link #interpolate(Dataset, double, double)}<a name="line.1992"></a> |
| <span class="sourceLineNo">1993</span> */<a name="line.1993"></a> |
| <span class="sourceLineNo">1994</span> @Deprecated<a name="line.1994"></a> |
| <span class="sourceLineNo">1995</span> public static double getBilinear(final IDataset d, final double x0, final double x1) {<a name="line.1995"></a> |
| <span class="sourceLineNo">1996</span> return interpolate(DatasetUtils.convertToDataset(d), x0, x1);<a name="line.1996"></a> |
| <span class="sourceLineNo">1997</span> }<a name="line.1997"></a> |
| <span class="sourceLineNo">1998</span><a name="line.1998"></a> |
| <span class="sourceLineNo">1999</span> /**<a name="line.1999"></a> |
| <span class="sourceLineNo">2000</span> * Interpolated a value from 2D dataset with mask<a name="line.2000"></a> |
| <span class="sourceLineNo">2001</span> * @param d input dataset<a name="line.2001"></a> |
| <span class="sourceLineNo">2002</span> * @param m mask dataset<a name="line.2002"></a> |
| <span class="sourceLineNo">2003</span> * @param x0 coordinate<a name="line.2003"></a> |
| <span class="sourceLineNo">2004</span> * @param x1 coordinate<a name="line.2004"></a> |
| <span class="sourceLineNo">2005</span> * @return bilinear interpolation<a name="line.2005"></a> |
| <span class="sourceLineNo">2006</span> * @deprecated Use {@link #interpolate(Dataset, Dataset, double, double)}<a name="line.2006"></a> |
| <span class="sourceLineNo">2007</span> */<a name="line.2007"></a> |
| <span class="sourceLineNo">2008</span> @Deprecated<a name="line.2008"></a> |
| <span class="sourceLineNo">2009</span> public static double getBilinear(final IDataset d, final IDataset m, final double x0, final double x1) {<a name="line.2009"></a> |
| <span class="sourceLineNo">2010</span> return interpolate(DatasetUtils.convertToDataset(d), DatasetUtils.convertToDataset(m), x0, x1);<a name="line.2010"></a> |
| <span class="sourceLineNo">2011</span> }<a name="line.2011"></a> |
| <span class="sourceLineNo">2012</span><a name="line.2012"></a> |
| <span class="sourceLineNo">2013</span> /**<a name="line.2013"></a> |
| <span class="sourceLineNo">2014</span> * Interpolated a value from 2D compound dataset<a name="line.2014"></a> |
| <span class="sourceLineNo">2015</span> * @param values bilinear interpolated array<a name="line.2015"></a> |
| <span class="sourceLineNo">2016</span> * @param d<a name="line.2016"></a> |
| <span class="sourceLineNo">2017</span> * @param x0<a name="line.2017"></a> |
| <span class="sourceLineNo">2018</span> * @param x1<a name="line.2018"></a> |
| <span class="sourceLineNo">2019</span> * @deprecated Use {@link #interpolate(double[], CompoundDataset, double, double)}<a name="line.2019"></a> |
| <span class="sourceLineNo">2020</span> */<a name="line.2020"></a> |
| <span class="sourceLineNo">2021</span> @Deprecated<a name="line.2021"></a> |
| <span class="sourceLineNo">2022</span> public static void getBilinear(final double[] values, final CompoundDataset d, final double x0, final double x1) {<a name="line.2022"></a> |
| <span class="sourceLineNo">2023</span> interpolate(values, d, x0, x1);<a name="line.2023"></a> |
| <span class="sourceLineNo">2024</span> }<a name="line.2024"></a> |
| <span class="sourceLineNo">2025</span><a name="line.2025"></a> |
| <span class="sourceLineNo">2026</span> /**<a name="line.2026"></a> |
| <span class="sourceLineNo">2027</span> * generate binomial coefficients with negative sign:<a name="line.2027"></a> |
| <span class="sourceLineNo">2028</span> * <p><a name="line.2028"></a> |
| <span class="sourceLineNo">2029</span> * <pre><a name="line.2029"></a> |
| <span class="sourceLineNo">2030</span> * (-1)^i n! / ( i! (n-i)! )<a name="line.2030"></a> |
| <span class="sourceLineNo">2031</span> * </pre><a name="line.2031"></a> |
| <span class="sourceLineNo">2032</span> * @param n<a name="line.2032"></a> |
| <span class="sourceLineNo">2033</span> * @return array of coefficients<a name="line.2033"></a> |
| <span class="sourceLineNo">2034</span> */<a name="line.2034"></a> |
| <span class="sourceLineNo">2035</span> private static int[] bincoeff(final int n) {<a name="line.2035"></a> |
| <span class="sourceLineNo">2036</span> final int[] b = new int[n+1];<a name="line.2036"></a> |
| <span class="sourceLineNo">2037</span> final int hn = n/2;<a name="line.2037"></a> |
| <span class="sourceLineNo">2038</span><a name="line.2038"></a> |
| <span class="sourceLineNo">2039</span> int bc = 1;<a name="line.2039"></a> |
| <span class="sourceLineNo">2040</span> b[0] = bc;<a name="line.2040"></a> |
| <span class="sourceLineNo">2041</span> for (int i = 1; i <= hn; i++) {<a name="line.2041"></a> |
| <span class="sourceLineNo">2042</span> bc = -(bc*(n-i+1))/i;<a name="line.2042"></a> |
| <span class="sourceLineNo">2043</span> b[i] = bc;<a name="line.2043"></a> |
| <span class="sourceLineNo">2044</span> }<a name="line.2044"></a> |
| <span class="sourceLineNo">2045</span> if (n % 2 != 0) {<a name="line.2045"></a> |
| <span class="sourceLineNo">2046</span> for (int i = hn+1; i <= n; i++) {<a name="line.2046"></a> |
| <span class="sourceLineNo">2047</span> b[i] = -b[n-i];<a name="line.2047"></a> |
| <span class="sourceLineNo">2048</span> }<a name="line.2048"></a> |
| <span class="sourceLineNo">2049</span> } else {<a name="line.2049"></a> |
| <span class="sourceLineNo">2050</span> for (int i = hn+1; i <= n; i++) {<a name="line.2050"></a> |
| <span class="sourceLineNo">2051</span> b[i] = b[n-i];<a name="line.2051"></a> |
| <span class="sourceLineNo">2052</span> }<a name="line.2052"></a> |
| <span class="sourceLineNo">2053</span> }<a name="line.2053"></a> |
| <span class="sourceLineNo">2054</span> return b;<a name="line.2054"></a> |
| <span class="sourceLineNo">2055</span> }<a name="line.2055"></a> |
| <span class="sourceLineNo">2056</span><a name="line.2056"></a> |
| <span class="sourceLineNo">2057</span> /**<a name="line.2057"></a> |
| <span class="sourceLineNo">2058</span> * 1st order discrete difference of dataset along flattened dataset using finite difference<a name="line.2058"></a> |
| <span class="sourceLineNo">2059</span> * @param a is 1d dataset<a name="line.2059"></a> |
| <span class="sourceLineNo">2060</span> * @param out is 1d dataset<a name="line.2060"></a> |
| <span class="sourceLineNo">2061</span> */<a name="line.2061"></a> |
| <span class="sourceLineNo">2062</span> private static void difference(final Dataset a, final Dataset out) {<a name="line.2062"></a> |
| <span class="sourceLineNo">2063</span> final int isize = a.getElementsPerItem();<a name="line.2063"></a> |
| <span class="sourceLineNo">2064</span><a name="line.2064"></a> |
| <span class="sourceLineNo">2065</span> final IndexIterator it = a.getIterator();<a name="line.2065"></a> |
| <span class="sourceLineNo">2066</span> if (!it.hasNext())<a name="line.2066"></a> |
| <span class="sourceLineNo">2067</span> return;<a name="line.2067"></a> |
| <span class="sourceLineNo">2068</span> int oi = it.index;<a name="line.2068"></a> |
| <span class="sourceLineNo">2069</span><a name="line.2069"></a> |
| <span class="sourceLineNo">2070</span> switch (a.getDType()) {<a name="line.2070"></a> |
| <span class="sourceLineNo">2071</span> case Dataset.INT8:<a name="line.2071"></a> |
| <span class="sourceLineNo">2072</span> final byte[] i8data = ((ByteDataset) a).data;<a name="line.2072"></a> |
| <span class="sourceLineNo">2073</span> final byte[] oi8data = ((ByteDataset) out).getData();<a name="line.2073"></a> |
| <span class="sourceLineNo">2074</span> for (int i = 0; it.hasNext();) {<a name="line.2074"></a> |
| <span class="sourceLineNo">2075</span> oi8data[i++] = (byte) (i8data[it.index] - i8data[oi]);<a name="line.2075"></a> |
| <span class="sourceLineNo">2076</span> oi = it.index;<a name="line.2076"></a> |
| <span class="sourceLineNo">2077</span> }<a name="line.2077"></a> |
| <span class="sourceLineNo">2078</span> break;<a name="line.2078"></a> |
| <span class="sourceLineNo">2079</span> case Dataset.INT16:<a name="line.2079"></a> |
| <span class="sourceLineNo">2080</span> final short[] i16data = ((ShortDataset) a).data;<a name="line.2080"></a> |
| <span class="sourceLineNo">2081</span> final short[] oi16data = ((ShortDataset) out).getData();<a name="line.2081"></a> |
| <span class="sourceLineNo">2082</span> for (int i = 0; it.hasNext();) {<a name="line.2082"></a> |
| <span class="sourceLineNo">2083</span> oi16data[i++] = (short) (i16data[it.index] - i16data[oi]);<a name="line.2083"></a> |
| <span class="sourceLineNo">2084</span> oi = it.index;<a name="line.2084"></a> |
| <span class="sourceLineNo">2085</span> }<a name="line.2085"></a> |
| <span class="sourceLineNo">2086</span> break;<a name="line.2086"></a> |
| <span class="sourceLineNo">2087</span> case Dataset.INT32:<a name="line.2087"></a> |
| <span class="sourceLineNo">2088</span> final int[] i32data = ((IntegerDataset) a).data;<a name="line.2088"></a> |
| <span class="sourceLineNo">2089</span> final int[] oi32data = ((IntegerDataset) out).getData();<a name="line.2089"></a> |
| <span class="sourceLineNo">2090</span> for (int i = 0; it.hasNext();) {<a name="line.2090"></a> |
| <span class="sourceLineNo">2091</span> oi32data[i++] = i32data[it.index] - i32data[oi];<a name="line.2091"></a> |
| <span class="sourceLineNo">2092</span> oi = it.index;<a name="line.2092"></a> |
| <span class="sourceLineNo">2093</span> }<a name="line.2093"></a> |
| <span class="sourceLineNo">2094</span> break;<a name="line.2094"></a> |
| <span class="sourceLineNo">2095</span> case Dataset.INT64:<a name="line.2095"></a> |
| <span class="sourceLineNo">2096</span> final long[] i64data = ((LongDataset) a).data;<a name="line.2096"></a> |
| <span class="sourceLineNo">2097</span> final long[] oi64data = ((LongDataset) out).getData();<a name="line.2097"></a> |
| <span class="sourceLineNo">2098</span> for (int i = 0; it.hasNext();) {<a name="line.2098"></a> |
| <span class="sourceLineNo">2099</span> oi64data[i++] = i64data[it.index] - i64data[oi];<a name="line.2099"></a> |
| <span class="sourceLineNo">2100</span> oi = it.index;<a name="line.2100"></a> |
| <span class="sourceLineNo">2101</span> }<a name="line.2101"></a> |
| <span class="sourceLineNo">2102</span> break;<a name="line.2102"></a> |
| <span class="sourceLineNo">2103</span> case Dataset.ARRAYINT8:<a name="line.2103"></a> |
| <span class="sourceLineNo">2104</span> final byte[] ai8data = ((CompoundByteDataset) a).data;<a name="line.2104"></a> |
| <span class="sourceLineNo">2105</span> final byte[] oai8data = ((CompoundByteDataset) out).getData();<a name="line.2105"></a> |
| <span class="sourceLineNo">2106</span> for (int i = 0; it.hasNext();) {<a name="line.2106"></a> |
| <span class="sourceLineNo">2107</span> for (int k = 0; k < isize; k++) {<a name="line.2107"></a> |
| <span class="sourceLineNo">2108</span> oai8data[i++] = (byte) (ai8data[it.index + k] - ai8data[oi++]);<a name="line.2108"></a> |
| <span class="sourceLineNo">2109</span> }<a name="line.2109"></a> |
| <span class="sourceLineNo">2110</span> oi = it.index;<a name="line.2110"></a> |
| <span class="sourceLineNo">2111</span> }<a name="line.2111"></a> |
| <span class="sourceLineNo">2112</span> break;<a name="line.2112"></a> |
| <span class="sourceLineNo">2113</span> case Dataset.ARRAYINT16:<a name="line.2113"></a> |
| <span class="sourceLineNo">2114</span> final short[] ai16data = ((CompoundShortDataset) a).data;<a name="line.2114"></a> |
| <span class="sourceLineNo">2115</span> final short[] oai16data = ((CompoundShortDataset) out).getData();<a name="line.2115"></a> |
| <span class="sourceLineNo">2116</span> for (int i = 0; it.hasNext();) {<a name="line.2116"></a> |
| <span class="sourceLineNo">2117</span> for (int k = 0; k < isize; k++) {<a name="line.2117"></a> |
| <span class="sourceLineNo">2118</span> oai16data[i++] = (short) (ai16data[it.index + k] - ai16data[oi++]);<a name="line.2118"></a> |
| <span class="sourceLineNo">2119</span> }<a name="line.2119"></a> |
| <span class="sourceLineNo">2120</span> oi = it.index;<a name="line.2120"></a> |
| <span class="sourceLineNo">2121</span> }<a name="line.2121"></a> |
| <span class="sourceLineNo">2122</span> break;<a name="line.2122"></a> |
| <span class="sourceLineNo">2123</span> case Dataset.ARRAYINT32:<a name="line.2123"></a> |
| <span class="sourceLineNo">2124</span> final int[] ai32data = ((CompoundIntegerDataset) a).data;<a name="line.2124"></a> |
| <span class="sourceLineNo">2125</span> final int[] oai32data = ((CompoundIntegerDataset) out).getData();<a name="line.2125"></a> |
| <span class="sourceLineNo">2126</span> for (int i = 0; it.hasNext();) {<a name="line.2126"></a> |
| <span class="sourceLineNo">2127</span> for (int k = 0; k < isize; k++) {<a name="line.2127"></a> |
| <span class="sourceLineNo">2128</span> oai32data[i++] = ai32data[it.index + k] - ai32data[oi++];<a name="line.2128"></a> |
| <span class="sourceLineNo">2129</span> }<a name="line.2129"></a> |
| <span class="sourceLineNo">2130</span> oi = it.index;<a name="line.2130"></a> |
| <span class="sourceLineNo">2131</span> }<a name="line.2131"></a> |
| <span class="sourceLineNo">2132</span> break;<a name="line.2132"></a> |
| <span class="sourceLineNo">2133</span> case Dataset.ARRAYINT64:<a name="line.2133"></a> |
| <span class="sourceLineNo">2134</span> final long[] ai64data = ((CompoundLongDataset) a).data;<a name="line.2134"></a> |
| <span class="sourceLineNo">2135</span> final long[] oai64data = ((CompoundLongDataset) out).getData();<a name="line.2135"></a> |
| <span class="sourceLineNo">2136</span> for (int i = 0; it.hasNext();) {<a name="line.2136"></a> |
| <span class="sourceLineNo">2137</span> for (int k = 0; k < isize; k++) {<a name="line.2137"></a> |
| <span class="sourceLineNo">2138</span> oai64data[i++] = ai64data[it.index + k] - ai64data[oi++];<a name="line.2138"></a> |
| <span class="sourceLineNo">2139</span> }<a name="line.2139"></a> |
| <span class="sourceLineNo">2140</span> oi = it.index;<a name="line.2140"></a> |
| <span class="sourceLineNo">2141</span> }<a name="line.2141"></a> |
| <span class="sourceLineNo">2142</span> break;<a name="line.2142"></a> |
| <span class="sourceLineNo">2143</span> case Dataset.FLOAT32:<a name="line.2143"></a> |
| <span class="sourceLineNo">2144</span> final float[] f32data = ((FloatDataset) a).data;<a name="line.2144"></a> |
| <span class="sourceLineNo">2145</span> final float[] of32data = ((FloatDataset) out).getData();<a name="line.2145"></a> |
| <span class="sourceLineNo">2146</span> for (int i = 0; it.hasNext();) {<a name="line.2146"></a> |
| <span class="sourceLineNo">2147</span> of32data[i++] = f32data[it.index] - f32data[oi];<a name="line.2147"></a> |
| <span class="sourceLineNo">2148</span> oi = it.index;<a name="line.2148"></a> |
| <span class="sourceLineNo">2149</span> }<a name="line.2149"></a> |
| <span class="sourceLineNo">2150</span> break;<a name="line.2150"></a> |
| <span class="sourceLineNo">2151</span> case Dataset.FLOAT64:<a name="line.2151"></a> |
| <span class="sourceLineNo">2152</span> final double[] f64data = ((DoubleDataset) a).data;<a name="line.2152"></a> |
| <span class="sourceLineNo">2153</span> final double[] of64data = ((DoubleDataset) out).getData();<a name="line.2153"></a> |
| <span class="sourceLineNo">2154</span> for (int i = 0; it.hasNext();) {<a name="line.2154"></a> |
| <span class="sourceLineNo">2155</span> of64data[i++] = f64data[it.index] - f64data[oi];<a name="line.2155"></a> |
| <span class="sourceLineNo">2156</span> oi = it.index;<a name="line.2156"></a> |
| <span class="sourceLineNo">2157</span> }<a name="line.2157"></a> |
| <span class="sourceLineNo">2158</span> break;<a name="line.2158"></a> |
| <span class="sourceLineNo">2159</span> case Dataset.COMPLEX64:<a name="line.2159"></a> |
| <span class="sourceLineNo">2160</span> final float[] c64data = ((ComplexFloatDataset) a).data;<a name="line.2160"></a> |
| <span class="sourceLineNo">2161</span> final float[] oc64data = ((ComplexFloatDataset) out).getData();<a name="line.2161"></a> |
| <span class="sourceLineNo">2162</span> for (int i = 0; it.hasNext();) {<a name="line.2162"></a> |
| <span class="sourceLineNo">2163</span> oc64data[i++] = c64data[it.index] - c64data[oi];<a name="line.2163"></a> |
| <span class="sourceLineNo">2164</span> oc64data[i++] = c64data[it.index + 1] - c64data[oi + 1];<a name="line.2164"></a> |
| <span class="sourceLineNo">2165</span> oi = it.index;<a name="line.2165"></a> |
| <span class="sourceLineNo">2166</span> }<a name="line.2166"></a> |
| <span class="sourceLineNo">2167</span> break;<a name="line.2167"></a> |
| <span class="sourceLineNo">2168</span> case Dataset.COMPLEX128:<a name="line.2168"></a> |
| <span class="sourceLineNo">2169</span> final double[] c128data = ((ComplexDoubleDataset) a).data;<a name="line.2169"></a> |
| <span class="sourceLineNo">2170</span> final double[] oc128data = ((ComplexDoubleDataset) out).getData();<a name="line.2170"></a> |
| <span class="sourceLineNo">2171</span> for (int i = 0; it.hasNext();) {<a name="line.2171"></a> |
| <span class="sourceLineNo">2172</span> oc128data[i++] = c128data[it.index] - c128data[oi];<a name="line.2172"></a> |
| <span class="sourceLineNo">2173</span> oc128data[i++] = c128data[it.index + 1] - c128data[oi + 1];<a name="line.2173"></a> |
| <span class="sourceLineNo">2174</span> oi = it.index;<a name="line.2174"></a> |
| <span class="sourceLineNo">2175</span> }<a name="line.2175"></a> |
| <span class="sourceLineNo">2176</span> break;<a name="line.2176"></a> |
| <span class="sourceLineNo">2177</span> case Dataset.ARRAYFLOAT32:<a name="line.2177"></a> |
| <span class="sourceLineNo">2178</span> final float[] af32data = ((CompoundFloatDataset) a).data;<a name="line.2178"></a> |
| <span class="sourceLineNo">2179</span> final float[] oaf32data = ((CompoundFloatDataset) out).getData();<a name="line.2179"></a> |
| <span class="sourceLineNo">2180</span> for (int i = 0; it.hasNext();) {<a name="line.2180"></a> |
| <span class="sourceLineNo">2181</span> for (int k = 0; k < isize; k++) {<a name="line.2181"></a> |
| <span class="sourceLineNo">2182</span> oaf32data[i++] = af32data[it.index + k] - af32data[oi++];<a name="line.2182"></a> |
| <span class="sourceLineNo">2183</span> }<a name="line.2183"></a> |
| <span class="sourceLineNo">2184</span> oi = it.index;<a name="line.2184"></a> |
| <span class="sourceLineNo">2185</span> }<a name="line.2185"></a> |
| <span class="sourceLineNo">2186</span> break;<a name="line.2186"></a> |
| <span class="sourceLineNo">2187</span> case Dataset.ARRAYFLOAT64:<a name="line.2187"></a> |
| <span class="sourceLineNo">2188</span> final double[] af64data = ((CompoundDoubleDataset) a).data;<a name="line.2188"></a> |
| <span class="sourceLineNo">2189</span> final double[] oaf64data = ((CompoundDoubleDataset) out).getData();<a name="line.2189"></a> |
| <span class="sourceLineNo">2190</span> for (int i = 0; it.hasNext();) {<a name="line.2190"></a> |
| <span class="sourceLineNo">2191</span> for (int k = 0; k < isize; k++) {<a name="line.2191"></a> |
| <span class="sourceLineNo">2192</span> oaf64data[i++] = af64data[it.index + k] - af64data[oi++];<a name="line.2192"></a> |
| <span class="sourceLineNo">2193</span> }<a name="line.2193"></a> |
| <span class="sourceLineNo">2194</span> oi = it.index;<a name="line.2194"></a> |
| <span class="sourceLineNo">2195</span> }<a name="line.2195"></a> |
| <span class="sourceLineNo">2196</span> break;<a name="line.2196"></a> |
| <span class="sourceLineNo">2197</span> default:<a name="line.2197"></a> |
| <span class="sourceLineNo">2198</span> throw new UnsupportedOperationException("difference does not support this dataset type");<a name="line.2198"></a> |
| <span class="sourceLineNo">2199</span> }<a name="line.2199"></a> |
| <span class="sourceLineNo">2200</span> }<a name="line.2200"></a> |
| <span class="sourceLineNo">2201</span><a name="line.2201"></a> |
| <span class="sourceLineNo">2202</span> /**<a name="line.2202"></a> |
| <span class="sourceLineNo">2203</span> * Get next set of indexes<a name="line.2203"></a> |
| <span class="sourceLineNo">2204</span> * @param it<a name="line.2204"></a> |
| <span class="sourceLineNo">2205</span> * @param indexes<a name="line.2205"></a> |
| <span class="sourceLineNo">2206</span> * @return true if there is more<a name="line.2206"></a> |
| <span class="sourceLineNo">2207</span> */<a name="line.2207"></a> |
| <span class="sourceLineNo">2208</span> private static boolean nextIndexes(IndexIterator it, int[] indexes) {<a name="line.2208"></a> |
| <span class="sourceLineNo">2209</span> if (!it.hasNext())<a name="line.2209"></a> |
| <span class="sourceLineNo">2210</span> return false;<a name="line.2210"></a> |
| <span class="sourceLineNo">2211</span> int m = indexes.length;<a name="line.2211"></a> |
| <span class="sourceLineNo">2212</span> int i = 0;<a name="line.2212"></a> |
| <span class="sourceLineNo">2213</span> for (i = 0; i < m - 1; i++) {<a name="line.2213"></a> |
| <span class="sourceLineNo">2214</span> indexes[i] = indexes[i+1];<a name="line.2214"></a> |
| <span class="sourceLineNo">2215</span> }<a name="line.2215"></a> |
| <span class="sourceLineNo">2216</span> indexes[i] = it.index;<a name="line.2216"></a> |
| <span class="sourceLineNo">2217</span> return true;<a name="line.2217"></a> |
| <span class="sourceLineNo">2218</span> }<a name="line.2218"></a> |
| <span class="sourceLineNo">2219</span><a name="line.2219"></a> |
| <span class="sourceLineNo">2220</span> <a name="line.2220"></a> |
| <span class="sourceLineNo">2221</span> /**<a name="line.2221"></a> |
| <span class="sourceLineNo">2222</span> * General order discrete difference of dataset along flattened dataset using finite difference<a name="line.2222"></a> |
| <span class="sourceLineNo">2223</span> * @param a is 1d dataset<a name="line.2223"></a> |
| <span class="sourceLineNo">2224</span> * @param out is 1d dataset<a name="line.2224"></a> |
| <span class="sourceLineNo">2225</span> * @param n order of difference<a name="line.2225"></a> |
| <span class="sourceLineNo">2226</span> */<a name="line.2226"></a> |
| <span class="sourceLineNo">2227</span> private static void difference(final Dataset a, final Dataset out, final int n) {<a name="line.2227"></a> |
| <span class="sourceLineNo">2228</span> if (n == 1) {<a name="line.2228"></a> |
| <span class="sourceLineNo">2229</span> difference(a, out);<a name="line.2229"></a> |
| <span class="sourceLineNo">2230</span> return;<a name="line.2230"></a> |
| <span class="sourceLineNo">2231</span> }<a name="line.2231"></a> |
| <span class="sourceLineNo">2232</span><a name="line.2232"></a> |
| <span class="sourceLineNo">2233</span> final int isize = a.getElementsPerItem();<a name="line.2233"></a> |
| <span class="sourceLineNo">2234</span><a name="line.2234"></a> |
| <span class="sourceLineNo">2235</span> final int[] coeff = bincoeff(n);<a name="line.2235"></a> |
| <span class="sourceLineNo">2236</span> final int m = n + 1;<a name="line.2236"></a> |
| <span class="sourceLineNo">2237</span> final int[] indexes = new int[m]; // store for index values<a name="line.2237"></a> |
| <span class="sourceLineNo">2238</span><a name="line.2238"></a> |
| <span class="sourceLineNo">2239</span> final IndexIterator it = a.getIterator();<a name="line.2239"></a> |
| <span class="sourceLineNo">2240</span> for (int i = 0; i < n; i++) {<a name="line.2240"></a> |
| <span class="sourceLineNo">2241</span> indexes[i] = it.index;<a name="line.2241"></a> |
| <span class="sourceLineNo">2242</span> it.hasNext();<a name="line.2242"></a> |
| <span class="sourceLineNo">2243</span> }<a name="line.2243"></a> |
| <span class="sourceLineNo">2244</span> indexes[n] = it.index;<a name="line.2244"></a> |
| <span class="sourceLineNo">2245</span><a name="line.2245"></a> |
| <span class="sourceLineNo">2246</span> switch (a.getDType()) {<a name="line.2246"></a> |
| <span class="sourceLineNo">2247</span> case Dataset.INT8:<a name="line.2247"></a> |
| <span class="sourceLineNo">2248</span> final byte[] i8data = ((ByteDataset) a).data;<a name="line.2248"></a> |
| <span class="sourceLineNo">2249</span> final byte[] oi8data = ((ByteDataset) out).getData();<a name="line.2249"></a> |
| <span class="sourceLineNo">2250</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2250"></a> |
| <span class="sourceLineNo">2251</span> int ox = 0;<a name="line.2251"></a> |
| <span class="sourceLineNo">2252</span> for (int j = 0; j < m; j++) {<a name="line.2252"></a> |
| <span class="sourceLineNo">2253</span> ox += i8data[indexes[j]] * coeff[j];<a name="line.2253"></a> |
| <span class="sourceLineNo">2254</span> }<a name="line.2254"></a> |
| <span class="sourceLineNo">2255</span> oi8data[i++] = (byte) ox;<a name="line.2255"></a> |
| <span class="sourceLineNo">2256</span> }<a name="line.2256"></a> |
| <span class="sourceLineNo">2257</span> break;<a name="line.2257"></a> |
| <span class="sourceLineNo">2258</span> case Dataset.INT16:<a name="line.2258"></a> |
| <span class="sourceLineNo">2259</span> final short[] i16data = ((ShortDataset) a).data;<a name="line.2259"></a> |
| <span class="sourceLineNo">2260</span> final short[] oi16data = ((ShortDataset) out).getData();<a name="line.2260"></a> |
| <span class="sourceLineNo">2261</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2261"></a> |
| <span class="sourceLineNo">2262</span> int ox = 0;<a name="line.2262"></a> |
| <span class="sourceLineNo">2263</span> for (int j = 0; j < m; j++) {<a name="line.2263"></a> |
| <span class="sourceLineNo">2264</span> ox += i16data[indexes[j]] * coeff[j];<a name="line.2264"></a> |
| <span class="sourceLineNo">2265</span> }<a name="line.2265"></a> |
| <span class="sourceLineNo">2266</span> oi16data[i++] = (short) ox;<a name="line.2266"></a> |
| <span class="sourceLineNo">2267</span> }<a name="line.2267"></a> |
| <span class="sourceLineNo">2268</span> break;<a name="line.2268"></a> |
| <span class="sourceLineNo">2269</span> case Dataset.INT32:<a name="line.2269"></a> |
| <span class="sourceLineNo">2270</span> final int[] i32data = ((IntegerDataset) a).data;<a name="line.2270"></a> |
| <span class="sourceLineNo">2271</span> final int[] oi32data = ((IntegerDataset) out).getData();<a name="line.2271"></a> |
| <span class="sourceLineNo">2272</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2272"></a> |
| <span class="sourceLineNo">2273</span> int ox = 0;<a name="line.2273"></a> |
| <span class="sourceLineNo">2274</span> for (int j = 0; j < m; j++) {<a name="line.2274"></a> |
| <span class="sourceLineNo">2275</span> ox += i32data[indexes[j]] * coeff[j];<a name="line.2275"></a> |
| <span class="sourceLineNo">2276</span> }<a name="line.2276"></a> |
| <span class="sourceLineNo">2277</span> oi32data[i++] = ox;<a name="line.2277"></a> |
| <span class="sourceLineNo">2278</span> }<a name="line.2278"></a> |
| <span class="sourceLineNo">2279</span> break;<a name="line.2279"></a> |
| <span class="sourceLineNo">2280</span> case Dataset.INT64:<a name="line.2280"></a> |
| <span class="sourceLineNo">2281</span> final long[] i64data = ((LongDataset) a).data;<a name="line.2281"></a> |
| <span class="sourceLineNo">2282</span> final long[] oi64data = ((LongDataset) out).getData();<a name="line.2282"></a> |
| <span class="sourceLineNo">2283</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2283"></a> |
| <span class="sourceLineNo">2284</span> long ox = 0;<a name="line.2284"></a> |
| <span class="sourceLineNo">2285</span> for (int j = 0; j < m; j++) {<a name="line.2285"></a> |
| <span class="sourceLineNo">2286</span> ox += i64data[indexes[j]] * coeff[j];<a name="line.2286"></a> |
| <span class="sourceLineNo">2287</span> }<a name="line.2287"></a> |
| <span class="sourceLineNo">2288</span> oi64data[i++] = ox;<a name="line.2288"></a> |
| <span class="sourceLineNo">2289</span> }<a name="line.2289"></a> |
| <span class="sourceLineNo">2290</span> break;<a name="line.2290"></a> |
| <span class="sourceLineNo">2291</span> case Dataset.ARRAYINT8:<a name="line.2291"></a> |
| <span class="sourceLineNo">2292</span> final byte[] ai8data = ((CompoundByteDataset) a).data;<a name="line.2292"></a> |
| <span class="sourceLineNo">2293</span> final byte[] oai8data = ((CompoundByteDataset) out).getData();<a name="line.2293"></a> |
| <span class="sourceLineNo">2294</span> int[] box = new int[isize];<a name="line.2294"></a> |
| <span class="sourceLineNo">2295</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2295"></a> |
| <span class="sourceLineNo">2296</span> Arrays.fill(box, 0);<a name="line.2296"></a> |
| <span class="sourceLineNo">2297</span> for (int j = 0; j < m; j++) {<a name="line.2297"></a> |
| <span class="sourceLineNo">2298</span> double c = coeff[j];<a name="line.2298"></a> |
| <span class="sourceLineNo">2299</span> int l = indexes[j];<a name="line.2299"></a> |
| <span class="sourceLineNo">2300</span> for (int k = 0; k < isize; k++) {<a name="line.2300"></a> |
| <span class="sourceLineNo">2301</span> box[k] += ai8data[l++] * c;<a name="line.2301"></a> |
| <span class="sourceLineNo">2302</span> }<a name="line.2302"></a> |
| <span class="sourceLineNo">2303</span> }<a name="line.2303"></a> |
| <span class="sourceLineNo">2304</span> for (int k = 0; k < isize; k++) {<a name="line.2304"></a> |
| <span class="sourceLineNo">2305</span> oai8data[i++] = (byte) box[k];<a name="line.2305"></a> |
| <span class="sourceLineNo">2306</span> }<a name="line.2306"></a> |
| <span class="sourceLineNo">2307</span> }<a name="line.2307"></a> |
| <span class="sourceLineNo">2308</span> break;<a name="line.2308"></a> |
| <span class="sourceLineNo">2309</span> case Dataset.ARRAYINT16:<a name="line.2309"></a> |
| <span class="sourceLineNo">2310</span> final short[] ai16data = ((CompoundShortDataset) a).data;<a name="line.2310"></a> |
| <span class="sourceLineNo">2311</span> final short[] oai16data = ((CompoundShortDataset) out).getData();<a name="line.2311"></a> |
| <span class="sourceLineNo">2312</span> int[] sox = new int[isize];<a name="line.2312"></a> |
| <span class="sourceLineNo">2313</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2313"></a> |
| <span class="sourceLineNo">2314</span> Arrays.fill(sox, 0);<a name="line.2314"></a> |
| <span class="sourceLineNo">2315</span> for (int j = 0; j < m; j++) {<a name="line.2315"></a> |
| <span class="sourceLineNo">2316</span> double c = coeff[j];<a name="line.2316"></a> |
| <span class="sourceLineNo">2317</span> int l = indexes[j];<a name="line.2317"></a> |
| <span class="sourceLineNo">2318</span> for (int k = 0; k < isize; k++) {<a name="line.2318"></a> |
| <span class="sourceLineNo">2319</span> sox[k] += ai16data[l++] * c;<a name="line.2319"></a> |
| <span class="sourceLineNo">2320</span> }<a name="line.2320"></a> |
| <span class="sourceLineNo">2321</span> }<a name="line.2321"></a> |
| <span class="sourceLineNo">2322</span> for (int k = 0; k < isize; k++) {<a name="line.2322"></a> |
| <span class="sourceLineNo">2323</span> oai16data[i++] = (short) sox[k];<a name="line.2323"></a> |
| <span class="sourceLineNo">2324</span> }<a name="line.2324"></a> |
| <span class="sourceLineNo">2325</span> }<a name="line.2325"></a> |
| <span class="sourceLineNo">2326</span> break;<a name="line.2326"></a> |
| <span class="sourceLineNo">2327</span> case Dataset.ARRAYINT32:<a name="line.2327"></a> |
| <span class="sourceLineNo">2328</span> final int[] ai32data = ((CompoundIntegerDataset) a).data;<a name="line.2328"></a> |
| <span class="sourceLineNo">2329</span> final int[] oai32data = ((CompoundIntegerDataset) out).getData();<a name="line.2329"></a> |
| <span class="sourceLineNo">2330</span> int[] iox = new int[isize];<a name="line.2330"></a> |
| <span class="sourceLineNo">2331</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2331"></a> |
| <span class="sourceLineNo">2332</span> Arrays.fill(iox, 0);<a name="line.2332"></a> |
| <span class="sourceLineNo">2333</span> for (int j = 0; j < m; j++) {<a name="line.2333"></a> |
| <span class="sourceLineNo">2334</span> double c = coeff[j];<a name="line.2334"></a> |
| <span class="sourceLineNo">2335</span> int l = indexes[j];<a name="line.2335"></a> |
| <span class="sourceLineNo">2336</span> for (int k = 0; k < isize; k++) {<a name="line.2336"></a> |
| <span class="sourceLineNo">2337</span> iox[k] += ai32data[l++] * c;<a name="line.2337"></a> |
| <span class="sourceLineNo">2338</span> }<a name="line.2338"></a> |
| <span class="sourceLineNo">2339</span> }<a name="line.2339"></a> |
| <span class="sourceLineNo">2340</span> for (int k = 0; k < isize; k++) {<a name="line.2340"></a> |
| <span class="sourceLineNo">2341</span> oai32data[i++] = iox[k];<a name="line.2341"></a> |
| <span class="sourceLineNo">2342</span> }<a name="line.2342"></a> |
| <span class="sourceLineNo">2343</span> }<a name="line.2343"></a> |
| <span class="sourceLineNo">2344</span> break;<a name="line.2344"></a> |
| <span class="sourceLineNo">2345</span> case Dataset.ARRAYINT64:<a name="line.2345"></a> |
| <span class="sourceLineNo">2346</span> final long[] ai64data = ((CompoundLongDataset) a).data;<a name="line.2346"></a> |
| <span class="sourceLineNo">2347</span> final long[] oai64data = ((CompoundLongDataset) out).getData();<a name="line.2347"></a> |
| <span class="sourceLineNo">2348</span> long[] lox = new long[isize];<a name="line.2348"></a> |
| <span class="sourceLineNo">2349</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2349"></a> |
| <span class="sourceLineNo">2350</span> Arrays.fill(lox, 0);<a name="line.2350"></a> |
| <span class="sourceLineNo">2351</span> for (int j = 0; j < m; j++) {<a name="line.2351"></a> |
| <span class="sourceLineNo">2352</span> double c = coeff[j];<a name="line.2352"></a> |
| <span class="sourceLineNo">2353</span> int l = indexes[j];<a name="line.2353"></a> |
| <span class="sourceLineNo">2354</span> for (int k = 0; k < isize; k++) {<a name="line.2354"></a> |
| <span class="sourceLineNo">2355</span> lox[k] += ai64data[l++] * c;<a name="line.2355"></a> |
| <span class="sourceLineNo">2356</span> }<a name="line.2356"></a> |
| <span class="sourceLineNo">2357</span> }<a name="line.2357"></a> |
| <span class="sourceLineNo">2358</span> for (int k = 0; k < isize; k++) {<a name="line.2358"></a> |
| <span class="sourceLineNo">2359</span> oai64data[i++] = lox[k];<a name="line.2359"></a> |
| <span class="sourceLineNo">2360</span> }<a name="line.2360"></a> |
| <span class="sourceLineNo">2361</span> }<a name="line.2361"></a> |
| <span class="sourceLineNo">2362</span> break;<a name="line.2362"></a> |
| <span class="sourceLineNo">2363</span> case Dataset.FLOAT32:<a name="line.2363"></a> |
| <span class="sourceLineNo">2364</span> final float[] f32data = ((FloatDataset) a).data;<a name="line.2364"></a> |
| <span class="sourceLineNo">2365</span> final float[] of32data = ((FloatDataset) out).getData();<a name="line.2365"></a> |
| <span class="sourceLineNo">2366</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2366"></a> |
| <span class="sourceLineNo">2367</span> float ox = 0;<a name="line.2367"></a> |
| <span class="sourceLineNo">2368</span> for (int j = 0; j < m; j++) {<a name="line.2368"></a> |
| <span class="sourceLineNo">2369</span> ox += f32data[indexes[j]] * coeff[j];<a name="line.2369"></a> |
| <span class="sourceLineNo">2370</span> }<a name="line.2370"></a> |
| <span class="sourceLineNo">2371</span> of32data[i++] = ox;<a name="line.2371"></a> |
| <span class="sourceLineNo">2372</span> }<a name="line.2372"></a> |
| <span class="sourceLineNo">2373</span> break;<a name="line.2373"></a> |
| <span class="sourceLineNo">2374</span> case Dataset.FLOAT64:<a name="line.2374"></a> |
| <span class="sourceLineNo">2375</span> final double[] f64data = ((DoubleDataset) a).data;<a name="line.2375"></a> |
| <span class="sourceLineNo">2376</span> final double[] of64data = ((DoubleDataset) out).getData();<a name="line.2376"></a> |
| <span class="sourceLineNo">2377</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2377"></a> |
| <span class="sourceLineNo">2378</span> double ox = 0;<a name="line.2378"></a> |
| <span class="sourceLineNo">2379</span> for (int j = 0; j < m; j++) {<a name="line.2379"></a> |
| <span class="sourceLineNo">2380</span> ox += f64data[indexes[j]] * coeff[j];<a name="line.2380"></a> |
| <span class="sourceLineNo">2381</span> }<a name="line.2381"></a> |
| <span class="sourceLineNo">2382</span> of64data[i++] = ox;<a name="line.2382"></a> |
| <span class="sourceLineNo">2383</span> }<a name="line.2383"></a> |
| <span class="sourceLineNo">2384</span> break;<a name="line.2384"></a> |
| <span class="sourceLineNo">2385</span> case Dataset.COMPLEX64:<a name="line.2385"></a> |
| <span class="sourceLineNo">2386</span> final float[] c64data = ((ComplexFloatDataset) a).data;<a name="line.2386"></a> |
| <span class="sourceLineNo">2387</span> final float[] oc64data = ((ComplexFloatDataset) out).getData();<a name="line.2387"></a> |
| <span class="sourceLineNo">2388</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2388"></a> |
| <span class="sourceLineNo">2389</span> float ox = 0;<a name="line.2389"></a> |
| <span class="sourceLineNo">2390</span> float oy = 0;<a name="line.2390"></a> |
| <span class="sourceLineNo">2391</span> for (int j = 0; j < m; j++) {<a name="line.2391"></a> |
| <span class="sourceLineNo">2392</span> int l = indexes[j];<a name="line.2392"></a> |
| <span class="sourceLineNo">2393</span> ox += c64data[l++] * coeff[j];<a name="line.2393"></a> |
| <span class="sourceLineNo">2394</span> oy += c64data[l] * coeff[j];<a name="line.2394"></a> |
| <span class="sourceLineNo">2395</span> }<a name="line.2395"></a> |
| <span class="sourceLineNo">2396</span> oc64data[i++] = ox;<a name="line.2396"></a> |
| <span class="sourceLineNo">2397</span> oc64data[i++] = oy;<a name="line.2397"></a> |
| <span class="sourceLineNo">2398</span> }<a name="line.2398"></a> |
| <span class="sourceLineNo">2399</span> break;<a name="line.2399"></a> |
| <span class="sourceLineNo">2400</span> case Dataset.COMPLEX128:<a name="line.2400"></a> |
| <span class="sourceLineNo">2401</span> final double[] c128data = ((ComplexDoubleDataset) a).data;<a name="line.2401"></a> |
| <span class="sourceLineNo">2402</span> final double[] oc128data = ((ComplexDoubleDataset) out).getData();<a name="line.2402"></a> |
| <span class="sourceLineNo">2403</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2403"></a> |
| <span class="sourceLineNo">2404</span> double ox = 0;<a name="line.2404"></a> |
| <span class="sourceLineNo">2405</span> double oy = 0;<a name="line.2405"></a> |
| <span class="sourceLineNo">2406</span> for (int j = 0; j < m; j++) {<a name="line.2406"></a> |
| <span class="sourceLineNo">2407</span> int l = indexes[j];<a name="line.2407"></a> |
| <span class="sourceLineNo">2408</span> ox += c128data[l++] * coeff[j];<a name="line.2408"></a> |
| <span class="sourceLineNo">2409</span> oy += c128data[l] * coeff[j];<a name="line.2409"></a> |
| <span class="sourceLineNo">2410</span> }<a name="line.2410"></a> |
| <span class="sourceLineNo">2411</span> oc128data[i++] = ox;<a name="line.2411"></a> |
| <span class="sourceLineNo">2412</span> oc128data[i++] = oy;<a name="line.2412"></a> |
| <span class="sourceLineNo">2413</span> }<a name="line.2413"></a> |
| <span class="sourceLineNo">2414</span> break;<a name="line.2414"></a> |
| <span class="sourceLineNo">2415</span> case Dataset.ARRAYFLOAT32:<a name="line.2415"></a> |
| <span class="sourceLineNo">2416</span> final float[] af32data = ((CompoundFloatDataset) a).data;<a name="line.2416"></a> |
| <span class="sourceLineNo">2417</span> final float[] oaf32data = ((CompoundFloatDataset) out).getData();<a name="line.2417"></a> |
| <span class="sourceLineNo">2418</span> float[] fox = new float[isize];<a name="line.2418"></a> |
| <span class="sourceLineNo">2419</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2419"></a> |
| <span class="sourceLineNo">2420</span> Arrays.fill(fox, 0);<a name="line.2420"></a> |
| <span class="sourceLineNo">2421</span> for (int j = 0; j < m; j++) {<a name="line.2421"></a> |
| <span class="sourceLineNo">2422</span> double c = coeff[j];<a name="line.2422"></a> |
| <span class="sourceLineNo">2423</span> int l = indexes[j];<a name="line.2423"></a> |
| <span class="sourceLineNo">2424</span> for (int k = 0; k < isize; k++) {<a name="line.2424"></a> |
| <span class="sourceLineNo">2425</span> fox[k] += af32data[l++] * c;<a name="line.2425"></a> |
| <span class="sourceLineNo">2426</span> }<a name="line.2426"></a> |
| <span class="sourceLineNo">2427</span> }<a name="line.2427"></a> |
| <span class="sourceLineNo">2428</span> for (int k = 0; k < isize; k++) {<a name="line.2428"></a> |
| <span class="sourceLineNo">2429</span> oaf32data[i++] = fox[k];<a name="line.2429"></a> |
| <span class="sourceLineNo">2430</span> }<a name="line.2430"></a> |
| <span class="sourceLineNo">2431</span> }<a name="line.2431"></a> |
| <span class="sourceLineNo">2432</span> break;<a name="line.2432"></a> |
| <span class="sourceLineNo">2433</span> case Dataset.ARRAYFLOAT64:<a name="line.2433"></a> |
| <span class="sourceLineNo">2434</span> final double[] af64data = ((CompoundDoubleDataset) a).data;<a name="line.2434"></a> |
| <span class="sourceLineNo">2435</span> final double[] oaf64data = ((CompoundDoubleDataset) out).getData();<a name="line.2435"></a> |
| <span class="sourceLineNo">2436</span> double[] dox = new double[isize];<a name="line.2436"></a> |
| <span class="sourceLineNo">2437</span> for (int i = 0; nextIndexes(it, indexes);) {<a name="line.2437"></a> |
| <span class="sourceLineNo">2438</span> Arrays.fill(dox, 0);<a name="line.2438"></a> |
| <span class="sourceLineNo">2439</span> for (int j = 0; j < m; j++) {<a name="line.2439"></a> |
| <span class="sourceLineNo">2440</span> double c = coeff[j];<a name="line.2440"></a> |
| <span class="sourceLineNo">2441</span> int l = indexes[j];<a name="line.2441"></a> |
| <span class="sourceLineNo">2442</span> for (int k = 0; k < isize; k++) {<a name="line.2442"></a> |
| <span class="sourceLineNo">2443</span> dox[k] += af64data[l++] * c;<a name="line.2443"></a> |
| <span class="sourceLineNo">2444</span> }<a name="line.2444"></a> |
| <span class="sourceLineNo">2445</span> }<a name="line.2445"></a> |
| <span class="sourceLineNo">2446</span> for (int k = 0; k < isize; k++) {<a name="line.2446"></a> |
| <span class="sourceLineNo">2447</span> oaf64data[i++] = dox[k];<a name="line.2447"></a> |
| <span class="sourceLineNo">2448</span> }<a name="line.2448"></a> |
| <span class="sourceLineNo">2449</span> }<a name="line.2449"></a> |
| <span class="sourceLineNo">2450</span> break;<a name="line.2450"></a> |
| <span class="sourceLineNo">2451</span> default:<a name="line.2451"></a> |
| <span class="sourceLineNo">2452</span> throw new UnsupportedOperationException("difference does not support multiple-element dataset");<a name="line.2452"></a> |
| <span class="sourceLineNo">2453</span> }<a name="line.2453"></a> |
| <span class="sourceLineNo">2454</span> }<a name="line.2454"></a> |
| <span class="sourceLineNo">2455</span><a name="line.2455"></a> |
| <span class="sourceLineNo">2456</span> /**<a name="line.2456"></a> |
| <span class="sourceLineNo">2457</span> * Discrete difference of dataset along axis using finite difference<a name="line.2457"></a> |
| <span class="sourceLineNo">2458</span> * @param a<a name="line.2458"></a> |
| <span class="sourceLineNo">2459</span> * @param n order of difference<a name="line.2459"></a> |
| <span class="sourceLineNo">2460</span> * @param axis<a name="line.2460"></a> |
| <span class="sourceLineNo">2461</span> * @return difference<a name="line.2461"></a> |
| <span class="sourceLineNo">2462</span> */<a name="line.2462"></a> |
| <span class="sourceLineNo">2463</span> @SuppressWarnings("deprecation")<a name="line.2463"></a> |
| <span class="sourceLineNo">2464</span> public static Dataset difference(Dataset a, final int n, int axis) {<a name="line.2464"></a> |
| <span class="sourceLineNo">2465</span> Dataset ds;<a name="line.2465"></a> |
| <span class="sourceLineNo">2466</span> final int dt = a.getDType();<a name="line.2466"></a> |
| <span class="sourceLineNo">2467</span> final int rank = a.getRank();<a name="line.2467"></a> |
| <span class="sourceLineNo">2468</span> final int is = a.getElementsPerItem();<a name="line.2468"></a> |
| <span class="sourceLineNo">2469</span><a name="line.2469"></a> |
| <span class="sourceLineNo">2470</span> if (axis < 0) {<a name="line.2470"></a> |
| <span class="sourceLineNo">2471</span> axis += rank;<a name="line.2471"></a> |
| <span class="sourceLineNo">2472</span> }<a name="line.2472"></a> |
| <span class="sourceLineNo">2473</span> if (axis < 0 || axis >= rank) {<a name="line.2473"></a> |
| <span class="sourceLineNo">2474</span> throw new IllegalArgumentException("Axis is out of range");<a name="line.2474"></a> |
| <span class="sourceLineNo">2475</span> }<a name="line.2475"></a> |
| <span class="sourceLineNo">2476</span> <a name="line.2476"></a> |
| <span class="sourceLineNo">2477</span> int[] nshape = a.getShape();<a name="line.2477"></a> |
| <span class="sourceLineNo">2478</span> if (nshape[axis] <= n) {<a name="line.2478"></a> |
| <span class="sourceLineNo">2479</span> nshape[axis] = 0;<a name="line.2479"></a> |
| <span class="sourceLineNo">2480</span> return DatasetFactory.zeros(is, nshape, dt);<a name="line.2480"></a> |
| <span class="sourceLineNo">2481</span> }<a name="line.2481"></a> |
| <span class="sourceLineNo">2482</span><a name="line.2482"></a> |
| <span class="sourceLineNo">2483</span> nshape[axis] -= n;<a name="line.2483"></a> |
| <span class="sourceLineNo">2484</span> ds = DatasetFactory.zeros(is, nshape, dt);<a name="line.2484"></a> |
| <span class="sourceLineNo">2485</span> if (rank == 1) {<a name="line.2485"></a> |
| <span class="sourceLineNo">2486</span> difference(DatasetUtils.convertToDataset(a), ds, n);<a name="line.2486"></a> |
| <span class="sourceLineNo">2487</span> } else {<a name="line.2487"></a> |
| <span class="sourceLineNo">2488</span> final Dataset src = DatasetFactory.zeros(is, new int[] { a.getShapeRef()[axis] }, dt);<a name="line.2488"></a> |
| <span class="sourceLineNo">2489</span> final Dataset dest = DatasetFactory.zeros(is, new int[] { nshape[axis] }, dt);<a name="line.2489"></a> |
| <span class="sourceLineNo">2490</span> final PositionIterator pi = a.getPositionIterator(axis);<a name="line.2490"></a> |
| <span class="sourceLineNo">2491</span> final int[] pos = pi.getPos();<a name="line.2491"></a> |
| <span class="sourceLineNo">2492</span> final boolean[] hit = pi.getOmit();<a name="line.2492"></a> |
| <span class="sourceLineNo">2493</span> while (pi.hasNext()) {<a name="line.2493"></a> |
| <span class="sourceLineNo">2494</span> a.copyItemsFromAxes(pos, hit, src);<a name="line.2494"></a> |
| <span class="sourceLineNo">2495</span> difference(src, dest, n);<a name="line.2495"></a> |
| <span class="sourceLineNo">2496</span> ds.setItemsOnAxes(pos, hit, dest.getBuffer());<a name="line.2496"></a> |
| <span class="sourceLineNo">2497</span> }<a name="line.2497"></a> |
| <span class="sourceLineNo">2498</span> }<a name="line.2498"></a> |
| <span class="sourceLineNo">2499</span><a name="line.2499"></a> |
| <span class="sourceLineNo">2500</span> return ds;<a name="line.2500"></a> |
| <span class="sourceLineNo">2501</span> }<a name="line.2501"></a> |
| <span class="sourceLineNo">2502</span><a name="line.2502"></a> |
| <span class="sourceLineNo">2503</span> private static double SelectedMean(Dataset data, int Min, int Max) {<a name="line.2503"></a> |
| <span class="sourceLineNo">2504</span><a name="line.2504"></a> |
| <span class="sourceLineNo">2505</span> double result = 0.0;<a name="line.2505"></a> |
| <span class="sourceLineNo">2506</span> for (int i = Min, imax = data.getSize(); i <= Max; i++) {<a name="line.2506"></a> |
| <span class="sourceLineNo">2507</span> // clip i appropriately, imagine that effectively the two ends continue<a name="line.2507"></a> |
| <span class="sourceLineNo">2508</span> // straight out.<a name="line.2508"></a> |
| <span class="sourceLineNo">2509</span> int pos = i;<a name="line.2509"></a> |
| <span class="sourceLineNo">2510</span> if (pos < 0) {<a name="line.2510"></a> |
| <span class="sourceLineNo">2511</span> pos = 0;<a name="line.2511"></a> |
| <span class="sourceLineNo">2512</span> } else if (pos >= imax) {<a name="line.2512"></a> |
| <span class="sourceLineNo">2513</span> pos = imax - 1;<a name="line.2513"></a> |
| <span class="sourceLineNo">2514</span> }<a name="line.2514"></a> |
| <span class="sourceLineNo">2515</span> result += data.getElementDoubleAbs(pos);<a name="line.2515"></a> |
| <span class="sourceLineNo">2516</span> }<a name="line.2516"></a> |
| <span class="sourceLineNo">2517</span><a name="line.2517"></a> |
| <span class="sourceLineNo">2518</span> // now the sum is complete, average the values.<a name="line.2518"></a> |
| <span class="sourceLineNo">2519</span> result /= (Max - Min) + 1;<a name="line.2519"></a> |
| <span class="sourceLineNo">2520</span> return result;<a name="line.2520"></a> |
| <span class="sourceLineNo">2521</span> }<a name="line.2521"></a> |
| <span class="sourceLineNo">2522</span><a name="line.2522"></a> |
| <span class="sourceLineNo">2523</span> private static void SelectedMeanArray(double[] out, Dataset data, int Min, int Max) {<a name="line.2523"></a> |
| <span class="sourceLineNo">2524</span> final int isize = out.length;<a name="line.2524"></a> |
| <span class="sourceLineNo">2525</span> for (int j = 0; j < isize; j++)<a name="line.2525"></a> |
| <span class="sourceLineNo">2526</span> out[j] = 0.;<a name="line.2526"></a> |
| <span class="sourceLineNo">2527</span><a name="line.2527"></a> |
| <span class="sourceLineNo">2528</span> for (int i = Min, imax = data.getSize(); i <= Max; i++) {<a name="line.2528"></a> |
| <span class="sourceLineNo">2529</span> // clip i appropriately, imagine that effectively the two ends continue<a name="line.2529"></a> |
| <span class="sourceLineNo">2530</span> // straight out.<a name="line.2530"></a> |
| <span class="sourceLineNo">2531</span> int pos = i*isize;<a name="line.2531"></a> |
| <span class="sourceLineNo">2532</span> if (pos < 0) {<a name="line.2532"></a> |
| <span class="sourceLineNo">2533</span> pos = 0;<a name="line.2533"></a> |
| <span class="sourceLineNo">2534</span> } else if (pos >= imax) {<a name="line.2534"></a> |
| <span class="sourceLineNo">2535</span> pos = imax - isize;<a name="line.2535"></a> |
| <span class="sourceLineNo">2536</span> }<a name="line.2536"></a> |
| <span class="sourceLineNo">2537</span> for (int j = 0; j < isize; j++)<a name="line.2537"></a> |
| <span class="sourceLineNo">2538</span> out[j] += data.getElementDoubleAbs(pos+j);<a name="line.2538"></a> |
| <span class="sourceLineNo">2539</span> }<a name="line.2539"></a> |
| <span class="sourceLineNo">2540</span><a name="line.2540"></a> |
| <span class="sourceLineNo">2541</span> // now the sum is complete, average the values.<a name="line.2541"></a> |
| <span class="sourceLineNo">2542</span> double norm = 1./ (Max - Min + 1.);<a name="line.2542"></a> |
| <span class="sourceLineNo">2543</span> for (int j = 0; j < isize; j++)<a name="line.2543"></a> |
| <span class="sourceLineNo">2544</span> out[j] *= norm;<a name="line.2544"></a> |
| <span class="sourceLineNo">2545</span><a name="line.2545"></a> |
| <span class="sourceLineNo">2546</span> }<a name="line.2546"></a> |
| <span class="sourceLineNo">2547</span><a name="line.2547"></a> |
| <span class="sourceLineNo">2548</span> /**<a name="line.2548"></a> |
| <span class="sourceLineNo">2549</span> * Calculates the derivative of a line described by two datasets (x,y) given a spread of n either<a name="line.2549"></a> |
| <span class="sourceLineNo">2550</span> * side of the point<a name="line.2550"></a> |
| <span class="sourceLineNo">2551</span> * <a name="line.2551"></a> |
| <span class="sourceLineNo">2552</span> * @param x<a name="line.2552"></a> |
| <span class="sourceLineNo">2553</span> * The x values of the function to take the derivative of.<a name="line.2553"></a> |
| <span class="sourceLineNo">2554</span> * @param y<a name="line.2554"></a> |
| <span class="sourceLineNo">2555</span> * The y values of the function to take the derivative of.<a name="line.2555"></a> |
| <span class="sourceLineNo">2556</span> * @param n<a name="line.2556"></a> |
| <span class="sourceLineNo">2557</span> * The spread the derivative is calculated from, i.e. the<a name="line.2557"></a> |
| <span class="sourceLineNo">2558</span> * smoothing, the higher the value, the more smoothing occurs.<a name="line.2558"></a> |
| <span class="sourceLineNo">2559</span> * @return A dataset which contains all the derivative point for point.<a name="line.2559"></a> |
| <span class="sourceLineNo">2560</span> */<a name="line.2560"></a> |
| <span class="sourceLineNo">2561</span> @SuppressWarnings("deprecation")<a name="line.2561"></a> |
| <span class="sourceLineNo">2562</span> public static Dataset derivative(Dataset x, Dataset y, int n) {<a name="line.2562"></a> |
| <span class="sourceLineNo">2563</span> if (x.getRank() != 1 || y.getRank() != 1) {<a name="line.2563"></a> |
| <span class="sourceLineNo">2564</span> throw new IllegalArgumentException("Only one dimensional dataset supported");<a name="line.2564"></a> |
| <span class="sourceLineNo">2565</span> }<a name="line.2565"></a> |
| <span class="sourceLineNo">2566</span> if (y.getSize() > x.getSize()) {<a name="line.2566"></a> |
| <span class="sourceLineNo">2567</span> throw new IllegalArgumentException("Length of x dataset should be greater than or equal to y's");<a name="line.2567"></a> |
| <span class="sourceLineNo">2568</span> }<a name="line.2568"></a> |
| <span class="sourceLineNo">2569</span> int dtype = y.getDType();<a name="line.2569"></a> |
| <span class="sourceLineNo">2570</span> Dataset result;<a name="line.2570"></a> |
| <span class="sourceLineNo">2571</span> switch (dtype) {<a name="line.2571"></a> |
| <span class="sourceLineNo">2572</span> case Dataset.BOOL:<a name="line.2572"></a> |
| <span class="sourceLineNo">2573</span> case Dataset.INT8:<a name="line.2573"></a> |
| <span class="sourceLineNo">2574</span> case Dataset.INT16:<a name="line.2574"></a> |
| <span class="sourceLineNo">2575</span> case Dataset.ARRAYINT8:<a name="line.2575"></a> |
| <span class="sourceLineNo">2576</span> case Dataset.ARRAYINT16:<a name="line.2576"></a> |
| <span class="sourceLineNo">2577</span> result = DatasetFactory.zeros(y, Dataset.FLOAT32);<a name="line.2577"></a> |
| <span class="sourceLineNo">2578</span> break;<a name="line.2578"></a> |
| <span class="sourceLineNo">2579</span> case Dataset.INT32:<a name="line.2579"></a> |
| <span class="sourceLineNo">2580</span> case Dataset.INT64:<a name="line.2580"></a> |
| <span class="sourceLineNo">2581</span> case Dataset.ARRAYINT32:<a name="line.2581"></a> |
| <span class="sourceLineNo">2582</span> case Dataset.ARRAYINT64:<a name="line.2582"></a> |
| <span class="sourceLineNo">2583</span> result = DatasetFactory.zeros(y, Dataset.FLOAT64);<a name="line.2583"></a> |
| <span class="sourceLineNo">2584</span> break;<a name="line.2584"></a> |
| <span class="sourceLineNo">2585</span> case Dataset.FLOAT32:<a name="line.2585"></a> |
| <span class="sourceLineNo">2586</span> case Dataset.FLOAT64:<a name="line.2586"></a> |
| <span class="sourceLineNo">2587</span> case Dataset.COMPLEX64:<a name="line.2587"></a> |
| <span class="sourceLineNo">2588</span> case Dataset.COMPLEX128:<a name="line.2588"></a> |
| <span class="sourceLineNo">2589</span> case Dataset.ARRAYFLOAT32:<a name="line.2589"></a> |
| <span class="sourceLineNo">2590</span> case Dataset.ARRAYFLOAT64:<a name="line.2590"></a> |
| <span class="sourceLineNo">2591</span> result = DatasetFactory.zeros(y);<a name="line.2591"></a> |
| <span class="sourceLineNo">2592</span> break;<a name="line.2592"></a> |
| <span class="sourceLineNo">2593</span> default:<a name="line.2593"></a> |
| <span class="sourceLineNo">2594</span> throw new UnsupportedOperationException("derivative does not support multiple-element dataset");<a name="line.2594"></a> |
| <span class="sourceLineNo">2595</span> }<a name="line.2595"></a> |
| <span class="sourceLineNo">2596</span><a name="line.2596"></a> |
| <span class="sourceLineNo">2597</span> final int isize = y.getElementsPerItem();<a name="line.2597"></a> |
| <span class="sourceLineNo">2598</span> if (isize == 1) {<a name="line.2598"></a> |
| <span class="sourceLineNo">2599</span> for (int i = 0, imax = x.getSize(); i < imax; i++) {<a name="line.2599"></a> |
| <span class="sourceLineNo">2600</span> double LeftValue = SelectedMean(y, i - n, i - 1);<a name="line.2600"></a> |
| <span class="sourceLineNo">2601</span> double RightValue = SelectedMean(y, i + 1, i + n);<a name="line.2601"></a> |
| <span class="sourceLineNo">2602</span> double LeftPosition = SelectedMean(x, i - n, i - 1);<a name="line.2602"></a> |
| <span class="sourceLineNo">2603</span> double RightPosition = SelectedMean(x, i + 1, i + n);<a name="line.2603"></a> |
| <span class="sourceLineNo">2604</span><a name="line.2604"></a> |
| <span class="sourceLineNo">2605</span> // now the values and positions are calculated, the derivative can be<a name="line.2605"></a> |
| <span class="sourceLineNo">2606</span> // calculated.<a name="line.2606"></a> |
| <span class="sourceLineNo">2607</span> result.set(((RightValue - LeftValue) / (RightPosition - LeftPosition)), i);<a name="line.2607"></a> |
| <span class="sourceLineNo">2608</span> }<a name="line.2608"></a> |
| <span class="sourceLineNo">2609</span> } else {<a name="line.2609"></a> |
| <span class="sourceLineNo">2610</span> double[] leftValues = new double[isize];<a name="line.2610"></a> |
| <span class="sourceLineNo">2611</span> double[] rightValues = new double[isize];<a name="line.2611"></a> |
| <span class="sourceLineNo">2612</span> for (int i = 0, imax = x.getSize(); i < imax; i++) {<a name="line.2612"></a> |
| <span class="sourceLineNo">2613</span> SelectedMeanArray(leftValues, y, i - n, i - 1);<a name="line.2613"></a> |
| <span class="sourceLineNo">2614</span> SelectedMeanArray(rightValues, y, i + 1, i + n);<a name="line.2614"></a> |
| <span class="sourceLineNo">2615</span> double delta = SelectedMean(x, i - n, i - 1);<a name="line.2615"></a> |
| <span class="sourceLineNo">2616</span> delta = 1./(SelectedMean(x, i + 1, i + n) - delta);<a name="line.2616"></a> |
| <span class="sourceLineNo">2617</span> for (int j = 0; j < isize; j++) {<a name="line.2617"></a> |
| <span class="sourceLineNo">2618</span> rightValues[j] -= leftValues[j];<a name="line.2618"></a> |
| <span class="sourceLineNo">2619</span> rightValues[j] *= delta;<a name="line.2619"></a> |
| <span class="sourceLineNo">2620</span> }<a name="line.2620"></a> |
| <span class="sourceLineNo">2621</span> result.set(rightValues, i);<a name="line.2621"></a> |
| <span class="sourceLineNo">2622</span> }<a name="line.2622"></a> |
| <span class="sourceLineNo">2623</span> }<a name="line.2623"></a> |
| <span class="sourceLineNo">2624</span><a name="line.2624"></a> |
| <span class="sourceLineNo">2625</span> // set the name based on the changes made<a name="line.2625"></a> |
| <span class="sourceLineNo">2626</span> result.setName(y.getName() + "'");<a name="line.2626"></a> |
| <span class="sourceLineNo">2627</span><a name="line.2627"></a> |
| <span class="sourceLineNo">2628</span> return result;<a name="line.2628"></a> |
| <span class="sourceLineNo">2629</span> }<a name="line.2629"></a> |
| <span class="sourceLineNo">2630</span><a name="line.2630"></a> |
| <span class="sourceLineNo">2631</span> /**<a name="line.2631"></a> |
| <span class="sourceLineNo">2632</span> * Discrete difference of dataset along axis using finite central difference<a name="line.2632"></a> |
| <span class="sourceLineNo">2633</span> * @param a<a name="line.2633"></a> |
| <span class="sourceLineNo">2634</span> * @param axis<a name="line.2634"></a> |
| <span class="sourceLineNo">2635</span> * @return difference<a name="line.2635"></a> |
| <span class="sourceLineNo">2636</span> */<a name="line.2636"></a> |
| <span class="sourceLineNo">2637</span> @SuppressWarnings("deprecation")<a name="line.2637"></a> |
| <span class="sourceLineNo">2638</span> public static Dataset centralDifference(Dataset a, int axis) {<a name="line.2638"></a> |
| <span class="sourceLineNo">2639</span> Dataset ds;<a name="line.2639"></a> |
| <span class="sourceLineNo">2640</span> final int dt = a.getDType();<a name="line.2640"></a> |
| <span class="sourceLineNo">2641</span> final int rank = a.getRank();<a name="line.2641"></a> |
| <span class="sourceLineNo">2642</span> final int is = a.getElementsPerItem();<a name="line.2642"></a> |
| <span class="sourceLineNo">2643</span><a name="line.2643"></a> |
| <span class="sourceLineNo">2644</span> if (axis < 0) {<a name="line.2644"></a> |
| <span class="sourceLineNo">2645</span> axis += rank;<a name="line.2645"></a> |
| <span class="sourceLineNo">2646</span> }<a name="line.2646"></a> |
| <span class="sourceLineNo">2647</span> if (axis < 0 || axis >= rank) {<a name="line.2647"></a> |
| <span class="sourceLineNo">2648</span> throw new IllegalArgumentException("Axis is out of range");<a name="line.2648"></a> |
| <span class="sourceLineNo">2649</span> }<a name="line.2649"></a> |
| <span class="sourceLineNo">2650</span><a name="line.2650"></a> |
| <span class="sourceLineNo">2651</span> final int len = a.getShapeRef()[axis];<a name="line.2651"></a> |
| <span class="sourceLineNo">2652</span> if (len < 2) {<a name="line.2652"></a> |
| <span class="sourceLineNo">2653</span> throw new IllegalArgumentException("Dataset should have a size > 1 along given axis");<a name="line.2653"></a> |
| <span class="sourceLineNo">2654</span> }<a name="line.2654"></a> |
| <span class="sourceLineNo">2655</span> ds = DatasetFactory.zeros(is, a.getShapeRef(), dt);<a name="line.2655"></a> |
| <span class="sourceLineNo">2656</span> if (rank == 1) {<a name="line.2656"></a> |
| <span class="sourceLineNo">2657</span> centralDifference(a, ds);<a name="line.2657"></a> |
| <span class="sourceLineNo">2658</span> } else {<a name="line.2658"></a> |
| <span class="sourceLineNo">2659</span> final Dataset src = DatasetFactory.zeros(is, new int[] { len }, dt);<a name="line.2659"></a> |
| <span class="sourceLineNo">2660</span> final Dataset dest = DatasetFactory.zeros(is, new int[] { len }, dt);<a name="line.2660"></a> |
| <span class="sourceLineNo">2661</span> final PositionIterator pi = a.getPositionIterator(axis);<a name="line.2661"></a> |
| <span class="sourceLineNo">2662</span> final int[] pos = pi.getPos();<a name="line.2662"></a> |
| <span class="sourceLineNo">2663</span> final boolean[] hit = pi.getOmit();<a name="line.2663"></a> |
| <span class="sourceLineNo">2664</span> while (pi.hasNext()) {<a name="line.2664"></a> |
| <span class="sourceLineNo">2665</span> a.copyItemsFromAxes(pos, hit, src);<a name="line.2665"></a> |
| <span class="sourceLineNo">2666</span> centralDifference(src, dest);<a name="line.2666"></a> |
| <span class="sourceLineNo">2667</span> ds.setItemsOnAxes(pos, hit, dest.getBuffer());<a name="line.2667"></a> |
| <span class="sourceLineNo">2668</span> }<a name="line.2668"></a> |
| <span class="sourceLineNo">2669</span> }<a name="line.2669"></a> |
| <span class="sourceLineNo">2670</span><a name="line.2670"></a> |
| <span class="sourceLineNo">2671</span> return ds;<a name="line.2671"></a> |
| <span class="sourceLineNo">2672</span> }<a name="line.2672"></a> |
| <span class="sourceLineNo">2673</span><a name="line.2673"></a> |
| <span class="sourceLineNo">2674</span> /**<a name="line.2674"></a> |
| <span class="sourceLineNo">2675</span> * 1st order discrete difference of dataset along flattened dataset using central difference<a name="line.2675"></a> |
| <span class="sourceLineNo">2676</span> * @param a is 1d dataset<a name="line.2676"></a> |
| <span class="sourceLineNo">2677</span> * @param out is 1d dataset<a name="line.2677"></a> |
| <span class="sourceLineNo">2678</span> */<a name="line.2678"></a> |
| <span class="sourceLineNo">2679</span> private static void centralDifference(final Dataset a, final Dataset out) {<a name="line.2679"></a> |
| <span class="sourceLineNo">2680</span> final int isize = a.getElementsPerItem();<a name="line.2680"></a> |
| <span class="sourceLineNo">2681</span> final int dt = a.getDType();<a name="line.2681"></a> |
| <span class="sourceLineNo">2682</span><a name="line.2682"></a> |
| <span class="sourceLineNo">2683</span> final int nlen = (out.getShapeRef()[0] - 1)*isize;<a name="line.2683"></a> |
| <span class="sourceLineNo">2684</span> if (nlen < 1) {<a name="line.2684"></a> |
| <span class="sourceLineNo">2685</span> throw new IllegalArgumentException("Dataset should have a size > 1 along given axis");<a name="line.2685"></a> |
| <span class="sourceLineNo">2686</span> }<a name="line.2686"></a> |
| <span class="sourceLineNo">2687</span> final IndexIterator it = a.getIterator();<a name="line.2687"></a> |
| <span class="sourceLineNo">2688</span> if (!it.hasNext())<a name="line.2688"></a> |
| <span class="sourceLineNo">2689</span> return;<a name="line.2689"></a> |
| <span class="sourceLineNo">2690</span> int oi = it.index;<a name="line.2690"></a> |
| <span class="sourceLineNo">2691</span> if (!it.hasNext())<a name="line.2691"></a> |
| <span class="sourceLineNo">2692</span> return;<a name="line.2692"></a> |
| <span class="sourceLineNo">2693</span> int pi = it.index;<a name="line.2693"></a> |
| <span class="sourceLineNo">2694</span><a name="line.2694"></a> |
| <span class="sourceLineNo">2695</span> switch (dt) {<a name="line.2695"></a> |
| <span class="sourceLineNo">2696</span> case Dataset.INT8:<a name="line.2696"></a> |
| <span class="sourceLineNo">2697</span> final byte[] i8data = ((ByteDataset) a).data;<a name="line.2697"></a> |
| <span class="sourceLineNo">2698</span> final byte[] oi8data = ((ByteDataset) out).getData();<a name="line.2698"></a> |
| <span class="sourceLineNo">2699</span> oi8data[0] = (byte) (i8data[pi] - i8data[oi]);<a name="line.2699"></a> |
| <span class="sourceLineNo">2700</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2700"></a> |
| <span class="sourceLineNo">2701</span> oi8data[i] = (byte) ((i8data[it.index] - i8data[oi])/2);<a name="line.2701"></a> |
| <span class="sourceLineNo">2702</span> oi = pi;<a name="line.2702"></a> |
| <span class="sourceLineNo">2703</span> pi = it.index;<a name="line.2703"></a> |
| <span class="sourceLineNo">2704</span> }<a name="line.2704"></a> |
| <span class="sourceLineNo">2705</span> oi8data[nlen] = (byte) (i8data[pi] - i8data[oi]);<a name="line.2705"></a> |
| <span class="sourceLineNo">2706</span> break;<a name="line.2706"></a> |
| <span class="sourceLineNo">2707</span> case Dataset.INT16:<a name="line.2707"></a> |
| <span class="sourceLineNo">2708</span> final short[] i16data = ((ShortDataset) a).data;<a name="line.2708"></a> |
| <span class="sourceLineNo">2709</span> final short[] oi16data = ((ShortDataset) out).getData();<a name="line.2709"></a> |
| <span class="sourceLineNo">2710</span> oi16data[0] = (short) (i16data[pi] - i16data[oi]);<a name="line.2710"></a> |
| <span class="sourceLineNo">2711</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2711"></a> |
| <span class="sourceLineNo">2712</span> oi16data[i] = (short) ((i16data[it.index] - i16data[oi])/2);<a name="line.2712"></a> |
| <span class="sourceLineNo">2713</span> oi = pi;<a name="line.2713"></a> |
| <span class="sourceLineNo">2714</span> pi = it.index;<a name="line.2714"></a> |
| <span class="sourceLineNo">2715</span> }<a name="line.2715"></a> |
| <span class="sourceLineNo">2716</span> oi16data[nlen] = (short) (i16data[pi] - i16data[oi]);<a name="line.2716"></a> |
| <span class="sourceLineNo">2717</span> break;<a name="line.2717"></a> |
| <span class="sourceLineNo">2718</span> case Dataset.INT32:<a name="line.2718"></a> |
| <span class="sourceLineNo">2719</span> final int[] i32data = ((IntegerDataset) a).data;<a name="line.2719"></a> |
| <span class="sourceLineNo">2720</span> final int[] oi32data = ((IntegerDataset) out).getData();<a name="line.2720"></a> |
| <span class="sourceLineNo">2721</span> oi32data[0] = i32data[pi] - i32data[oi];<a name="line.2721"></a> |
| <span class="sourceLineNo">2722</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2722"></a> |
| <span class="sourceLineNo">2723</span> oi32data[i] = (i32data[it.index] - i32data[oi])/2;<a name="line.2723"></a> |
| <span class="sourceLineNo">2724</span> oi = pi;<a name="line.2724"></a> |
| <span class="sourceLineNo">2725</span> pi = it.index;<a name="line.2725"></a> |
| <span class="sourceLineNo">2726</span> }<a name="line.2726"></a> |
| <span class="sourceLineNo">2727</span> oi32data[nlen] = i32data[pi] - i32data[oi];<a name="line.2727"></a> |
| <span class="sourceLineNo">2728</span> break;<a name="line.2728"></a> |
| <span class="sourceLineNo">2729</span> case Dataset.INT64:<a name="line.2729"></a> |
| <span class="sourceLineNo">2730</span> final long[] i64data = ((LongDataset) a).data;<a name="line.2730"></a> |
| <span class="sourceLineNo">2731</span> final long[] oi64data = ((LongDataset) out).getData();<a name="line.2731"></a> |
| <span class="sourceLineNo">2732</span> oi64data[0] = i64data[pi] - i64data[oi];<a name="line.2732"></a> |
| <span class="sourceLineNo">2733</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2733"></a> |
| <span class="sourceLineNo">2734</span> oi64data[i] = (i64data[it.index] - i64data[oi])/2;<a name="line.2734"></a> |
| <span class="sourceLineNo">2735</span> oi = pi;<a name="line.2735"></a> |
| <span class="sourceLineNo">2736</span> pi = it.index;<a name="line.2736"></a> |
| <span class="sourceLineNo">2737</span> }<a name="line.2737"></a> |
| <span class="sourceLineNo">2738</span> oi64data[nlen] = i64data[pi] - i64data[oi];<a name="line.2738"></a> |
| <span class="sourceLineNo">2739</span> break;<a name="line.2739"></a> |
| <span class="sourceLineNo">2740</span> case Dataset.ARRAYINT8:<a name="line.2740"></a> |
| <span class="sourceLineNo">2741</span> final byte[] ai8data = ((CompoundByteDataset) a).data;<a name="line.2741"></a> |
| <span class="sourceLineNo">2742</span> final byte[] oai8data = ((CompoundByteDataset) out).getData();<a name="line.2742"></a> |
| <span class="sourceLineNo">2743</span> for (int k = 0; k < isize; k++) {<a name="line.2743"></a> |
| <span class="sourceLineNo">2744</span> oai8data[k] = (byte) (ai8data[pi+k] - ai8data[oi+k]);<a name="line.2744"></a> |
| <span class="sourceLineNo">2745</span> }<a name="line.2745"></a> |
| <span class="sourceLineNo">2746</span> for (int i = isize; it.hasNext();) {<a name="line.2746"></a> |
| <span class="sourceLineNo">2747</span> int l = it.index;<a name="line.2747"></a> |
| <span class="sourceLineNo">2748</span> for (int k = 0; k < isize; k++) {<a name="line.2748"></a> |
| <span class="sourceLineNo">2749</span> oai8data[i++] = (byte) ((ai8data[l++] - ai8data[oi++])/2);<a name="line.2749"></a> |
| <span class="sourceLineNo">2750</span> }<a name="line.2750"></a> |
| <span class="sourceLineNo">2751</span> oi = pi;<a name="line.2751"></a> |
| <span class="sourceLineNo">2752</span> pi = it.index;<a name="line.2752"></a> |
| <span class="sourceLineNo">2753</span> }<a name="line.2753"></a> |
| <span class="sourceLineNo">2754</span> for (int k = 0; k < isize; k++) {<a name="line.2754"></a> |
| <span class="sourceLineNo">2755</span> oai8data[nlen+k] = (byte) (ai8data[pi+k] - ai8data[oi+k]);<a name="line.2755"></a> |
| <span class="sourceLineNo">2756</span> }<a name="line.2756"></a> |
| <span class="sourceLineNo">2757</span> break;<a name="line.2757"></a> |
| <span class="sourceLineNo">2758</span> case Dataset.ARRAYINT16:<a name="line.2758"></a> |
| <span class="sourceLineNo">2759</span> final short[] ai16data = ((CompoundShortDataset) a).data;<a name="line.2759"></a> |
| <span class="sourceLineNo">2760</span> final short[] oai16data = ((CompoundShortDataset) out).getData();<a name="line.2760"></a> |
| <span class="sourceLineNo">2761</span> for (int k = 0; k < isize; k++) {<a name="line.2761"></a> |
| <span class="sourceLineNo">2762</span> oai16data[k] = (short) (ai16data[pi+k] - ai16data[oi+k]);<a name="line.2762"></a> |
| <span class="sourceLineNo">2763</span> }<a name="line.2763"></a> |
| <span class="sourceLineNo">2764</span> for (int i = isize; it.hasNext();) {<a name="line.2764"></a> |
| <span class="sourceLineNo">2765</span> int l = it.index;<a name="line.2765"></a> |
| <span class="sourceLineNo">2766</span> for (int k = 0; k < isize; k++) {<a name="line.2766"></a> |
| <span class="sourceLineNo">2767</span> oai16data[i++] = (short) ((ai16data[l++] - ai16data[oi++])/2);<a name="line.2767"></a> |
| <span class="sourceLineNo">2768</span> }<a name="line.2768"></a> |
| <span class="sourceLineNo">2769</span> oi = pi;<a name="line.2769"></a> |
| <span class="sourceLineNo">2770</span> pi = it.index;<a name="line.2770"></a> |
| <span class="sourceLineNo">2771</span> }<a name="line.2771"></a> |
| <span class="sourceLineNo">2772</span> for (int k = 0; k < isize; k++) {<a name="line.2772"></a> |
| <span class="sourceLineNo">2773</span> oai16data[nlen+k] = (short) (ai16data[pi+k] - ai16data[oi+k]);<a name="line.2773"></a> |
| <span class="sourceLineNo">2774</span> }<a name="line.2774"></a> |
| <span class="sourceLineNo">2775</span> break;<a name="line.2775"></a> |
| <span class="sourceLineNo">2776</span> case Dataset.ARRAYINT32:<a name="line.2776"></a> |
| <span class="sourceLineNo">2777</span> final int[] ai32data = ((CompoundIntegerDataset) a).data;<a name="line.2777"></a> |
| <span class="sourceLineNo">2778</span> final int[] oai32data = ((CompoundIntegerDataset) out).getData();<a name="line.2778"></a> |
| <span class="sourceLineNo">2779</span> for (int k = 0; k < isize; k++) {<a name="line.2779"></a> |
| <span class="sourceLineNo">2780</span> oai32data[k] = ai32data[pi+k] - ai32data[oi+k];<a name="line.2780"></a> |
| <span class="sourceLineNo">2781</span> }<a name="line.2781"></a> |
| <span class="sourceLineNo">2782</span> for (int i = isize; it.hasNext();) {<a name="line.2782"></a> |
| <span class="sourceLineNo">2783</span> int l = it.index;<a name="line.2783"></a> |
| <span class="sourceLineNo">2784</span> for (int k = 0; k < isize; k++) {<a name="line.2784"></a> |
| <span class="sourceLineNo">2785</span> oai32data[i++] = (ai32data[l++] - ai32data[oi++])/2;<a name="line.2785"></a> |
| <span class="sourceLineNo">2786</span> }<a name="line.2786"></a> |
| <span class="sourceLineNo">2787</span> oi = pi;<a name="line.2787"></a> |
| <span class="sourceLineNo">2788</span> pi = it.index;<a name="line.2788"></a> |
| <span class="sourceLineNo">2789</span> }<a name="line.2789"></a> |
| <span class="sourceLineNo">2790</span> for (int k = 0; k < isize; k++) {<a name="line.2790"></a> |
| <span class="sourceLineNo">2791</span> oai32data[nlen+k] = ai32data[pi+k] - ai32data[oi+k];<a name="line.2791"></a> |
| <span class="sourceLineNo">2792</span> }<a name="line.2792"></a> |
| <span class="sourceLineNo">2793</span> break;<a name="line.2793"></a> |
| <span class="sourceLineNo">2794</span> case Dataset.ARRAYINT64:<a name="line.2794"></a> |
| <span class="sourceLineNo">2795</span> final long[] ai64data = ((CompoundLongDataset) a).data;<a name="line.2795"></a> |
| <span class="sourceLineNo">2796</span> final long[] oai64data = ((CompoundLongDataset) out).getData();<a name="line.2796"></a> |
| <span class="sourceLineNo">2797</span> for (int k = 0; k < isize; k++) {<a name="line.2797"></a> |
| <span class="sourceLineNo">2798</span> oai64data[k] = ai64data[pi+k] - ai64data[oi+k];<a name="line.2798"></a> |
| <span class="sourceLineNo">2799</span> }<a name="line.2799"></a> |
| <span class="sourceLineNo">2800</span> for (int i = isize; it.hasNext();) {<a name="line.2800"></a> |
| <span class="sourceLineNo">2801</span> int l = it.index;<a name="line.2801"></a> |
| <span class="sourceLineNo">2802</span> for (int k = 0; k < isize; k++) {<a name="line.2802"></a> |
| <span class="sourceLineNo">2803</span> oai64data[i++] = (ai64data[l++] - ai64data[oi++])/2;<a name="line.2803"></a> |
| <span class="sourceLineNo">2804</span> }<a name="line.2804"></a> |
| <span class="sourceLineNo">2805</span> oi = pi;<a name="line.2805"></a> |
| <span class="sourceLineNo">2806</span> pi = it.index;<a name="line.2806"></a> |
| <span class="sourceLineNo">2807</span> }<a name="line.2807"></a> |
| <span class="sourceLineNo">2808</span> for (int k = 0; k < isize; k++) {<a name="line.2808"></a> |
| <span class="sourceLineNo">2809</span> oai64data[nlen+k] = ai64data[pi+k] - ai64data[oi+k];<a name="line.2809"></a> |
| <span class="sourceLineNo">2810</span> }<a name="line.2810"></a> |
| <span class="sourceLineNo">2811</span> break;<a name="line.2811"></a> |
| <span class="sourceLineNo">2812</span> case Dataset.FLOAT32:<a name="line.2812"></a> |
| <span class="sourceLineNo">2813</span> final float[] f32data = ((FloatDataset) a).data;<a name="line.2813"></a> |
| <span class="sourceLineNo">2814</span> final float[] of32data = ((FloatDataset) out).getData();<a name="line.2814"></a> |
| <span class="sourceLineNo">2815</span> of32data[0] = f32data[pi] - f32data[oi];<a name="line.2815"></a> |
| <span class="sourceLineNo">2816</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2816"></a> |
| <span class="sourceLineNo">2817</span> of32data[i] = (f32data[it.index] - f32data[oi])*0.5f;<a name="line.2817"></a> |
| <span class="sourceLineNo">2818</span> oi = pi;<a name="line.2818"></a> |
| <span class="sourceLineNo">2819</span> pi = it.index;<a name="line.2819"></a> |
| <span class="sourceLineNo">2820</span> }<a name="line.2820"></a> |
| <span class="sourceLineNo">2821</span> of32data[nlen] = f32data[pi] - f32data[oi];<a name="line.2821"></a> |
| <span class="sourceLineNo">2822</span> break;<a name="line.2822"></a> |
| <span class="sourceLineNo">2823</span> case Dataset.FLOAT64:<a name="line.2823"></a> |
| <span class="sourceLineNo">2824</span> final double[] f64data = ((DoubleDataset) a).data;<a name="line.2824"></a> |
| <span class="sourceLineNo">2825</span> final double[] of64data = ((DoubleDataset) out).getData();<a name="line.2825"></a> |
| <span class="sourceLineNo">2826</span> of64data[0] = f64data[pi] - f64data[oi];<a name="line.2826"></a> |
| <span class="sourceLineNo">2827</span> for (int i = 1; it.hasNext(); i++) {<a name="line.2827"></a> |
| <span class="sourceLineNo">2828</span> of64data[i] = (f64data[it.index] - f64data[oi])*0.5f;<a name="line.2828"></a> |
| <span class="sourceLineNo">2829</span> oi = pi;<a name="line.2829"></a> |
| <span class="sourceLineNo">2830</span> pi = it.index;<a name="line.2830"></a> |
| <span class="sourceLineNo">2831</span> }<a name="line.2831"></a> |
| <span class="sourceLineNo">2832</span> of64data[nlen] = f64data[pi] - f64data[oi];<a name="line.2832"></a> |
| <span class="sourceLineNo">2833</span> break;<a name="line.2833"></a> |
| <span class="sourceLineNo">2834</span> case Dataset.COMPLEX64:<a name="line.2834"></a> |
| <span class="sourceLineNo">2835</span> final float[] c64data = ((ComplexFloatDataset) a).data;<a name="line.2835"></a> |
| <span class="sourceLineNo">2836</span> final float[] oc64data = ((ComplexFloatDataset) out).getData();<a name="line.2836"></a> |
| <span class="sourceLineNo">2837</span> oc64data[0] = c64data[pi] - c64data[oi];<a name="line.2837"></a> |
| <span class="sourceLineNo">2838</span> oc64data[1] = c64data[pi+1] - c64data[oi+1];<a name="line.2838"></a> |
| <span class="sourceLineNo">2839</span> for (int i = 2; it.hasNext();) {<a name="line.2839"></a> |
| <span class="sourceLineNo">2840</span> oc64data[i++] = (c64data[it.index] - c64data[oi++])*0.5f;<a name="line.2840"></a> |
| <span class="sourceLineNo">2841</span> oc64data[i++] = (c64data[it.index + 1] - c64data[oi])*0.5f;<a name="line.2841"></a> |
| <span class="sourceLineNo">2842</span> oi = pi;<a name="line.2842"></a> |
| <span class="sourceLineNo">2843</span> pi = it.index;<a name="line.2843"></a> |
| <span class="sourceLineNo">2844</span> }<a name="line.2844"></a> |
| <span class="sourceLineNo">2845</span> oc64data[nlen] = c64data[pi] - c64data[oi];<a name="line.2845"></a> |
| <span class="sourceLineNo">2846</span> oc64data[nlen+1] = c64data[pi+1] - c64data[oi+1];<a name="line.2846"></a> |
| <span class="sourceLineNo">2847</span> break;<a name="line.2847"></a> |
| <span class="sourceLineNo">2848</span> case Dataset.COMPLEX128:<a name="line.2848"></a> |
| <span class="sourceLineNo">2849</span> final double[] c128data = ((ComplexDoubleDataset) a).data;<a name="line.2849"></a> |
| <span class="sourceLineNo">2850</span> final double[] oc128data = ((ComplexDoubleDataset) out).getData();<a name="line.2850"></a> |
| <span class="sourceLineNo">2851</span> oc128data[0] = c128data[pi] - c128data[oi];<a name="line.2851"></a> |
| <span class="sourceLineNo">2852</span> oc128data[1] = c128data[pi+1] - c128data[oi+1];<a name="line.2852"></a> |
| <span class="sourceLineNo">2853</span> for (int i = 2; it.hasNext();) {<a name="line.2853"></a> |
| <span class="sourceLineNo">2854</span> oc128data[i++] = (c128data[it.index] - c128data[oi++])*0.5f;<a name="line.2854"></a> |
| <span class="sourceLineNo">2855</span> oc128data[i++] = (c128data[it.index + 1] - c128data[oi])*0.5f;<a name="line.2855"></a> |
| <span class="sourceLineNo">2856</span> oi = pi;<a name="line.2856"></a> |
| <span class="sourceLineNo">2857</span> pi = it.index;<a name="line.2857"></a> |
| <span class="sourceLineNo">2858</span> }<a name="line.2858"></a> |
| <span class="sourceLineNo">2859</span> oc128data[nlen] = c128data[pi] - c128data[oi];<a name="line.2859"></a> |
| <span class="sourceLineNo">2860</span> oc128data[nlen+1] = c128data[pi+1] - c128data[oi+1];<a name="line.2860"></a> |
| <span class="sourceLineNo">2861</span> break;<a name="line.2861"></a> |
| <span class="sourceLineNo">2862</span> case Dataset.ARRAYFLOAT32:<a name="line.2862"></a> |
| <span class="sourceLineNo">2863</span> final float[] af32data = ((CompoundFloatDataset) a).data;<a name="line.2863"></a> |
| <span class="sourceLineNo">2864</span> final float[] oaf32data = ((CompoundFloatDataset) out).getData();<a name="line.2864"></a> |
| <span class="sourceLineNo">2865</span> for (int k = 0; k < isize; k++) {<a name="line.2865"></a> |
| <span class="sourceLineNo">2866</span> oaf32data[k] = af32data[pi+k] - af32data[oi+k];<a name="line.2866"></a> |
| <span class="sourceLineNo">2867</span> }<a name="line.2867"></a> |
| <span class="sourceLineNo">2868</span> for (int i = isize; it.hasNext();) {<a name="line.2868"></a> |
| <span class="sourceLineNo">2869</span> int l = it.index;<a name="line.2869"></a> |
| <span class="sourceLineNo">2870</span> for (int k = 0; k < isize; k++) {<a name="line.2870"></a> |
| <span class="sourceLineNo">2871</span> oaf32data[i++] = (af32data[l++] - af32data[oi++])*0.5f;<a name="line.2871"></a> |
| <span class="sourceLineNo">2872</span> }<a name="line.2872"></a> |
| <span class="sourceLineNo">2873</span> oi = pi;<a name="line.2873"></a> |
| <span class="sourceLineNo">2874</span> pi = it.index;<a name="line.2874"></a> |
| <span class="sourceLineNo">2875</span> }<a name="line.2875"></a> |
| <span class="sourceLineNo">2876</span> for (int k = 0; k < isize; k++) {<a name="line.2876"></a> |
| <span class="sourceLineNo">2877</span> oaf32data[nlen+k] = af32data[pi+k] - af32data[oi+k];<a name="line.2877"></a> |
| <span class="sourceLineNo">2878</span> }<a name="line.2878"></a> |
| <span class="sourceLineNo">2879</span> break;<a name="line.2879"></a> |
| <span class="sourceLineNo">2880</span> case Dataset.ARRAYFLOAT64:<a name="line.2880"></a> |
| <span class="sourceLineNo">2881</span> final double[] af64data = ((CompoundDoubleDataset) a).data;<a name="line.2881"></a> |
| <span class="sourceLineNo">2882</span> final double[] oaf64data = ((CompoundDoubleDataset) out).getData();<a name="line.2882"></a> |
| <span class="sourceLineNo">2883</span> for (int k = 0; k < isize; k++) {<a name="line.2883"></a> |
| <span class="sourceLineNo">2884</span> oaf64data[k] = af64data[pi+k] - af64data[oi+k];<a name="line.2884"></a> |
| <span class="sourceLineNo">2885</span> }<a name="line.2885"></a> |
| <span class="sourceLineNo">2886</span> for (int i = isize; it.hasNext();) {<a name="line.2886"></a> |
| <span class="sourceLineNo">2887</span> int l = it.index;<a name="line.2887"></a> |
| <span class="sourceLineNo">2888</span> for (int k = 0; k < isize; k++) {<a name="line.2888"></a> |
| <span class="sourceLineNo">2889</span> oaf64data[i++] = (af64data[l++] - af64data[oi++])*0.5;<a name="line.2889"></a> |
| <span class="sourceLineNo">2890</span> }<a name="line.2890"></a> |
| <span class="sourceLineNo">2891</span> oi = pi;<a name="line.2891"></a> |
| <span class="sourceLineNo">2892</span> pi = it.index;<a name="line.2892"></a> |
| <span class="sourceLineNo">2893</span> }<a name="line.2893"></a> |
| <span class="sourceLineNo">2894</span> for (int k = 0; k < isize; k++) {<a name="line.2894"></a> |
| <span class="sourceLineNo">2895</span> oaf64data[nlen+k] = af64data[pi+k] - af64data[oi+k];<a name="line.2895"></a> |
| <span class="sourceLineNo">2896</span> }<a name="line.2896"></a> |
| <span class="sourceLineNo">2897</span> break;<a name="line.2897"></a> |
| <span class="sourceLineNo">2898</span> default:<a name="line.2898"></a> |
| <span class="sourceLineNo">2899</span> throw new UnsupportedOperationException("difference does not support this dataset type");<a name="line.2899"></a> |
| <span class="sourceLineNo">2900</span> }<a name="line.2900"></a> |
| <span class="sourceLineNo">2901</span> }<a name="line.2901"></a> |
| <span class="sourceLineNo">2902</span><a name="line.2902"></a> |
| <span class="sourceLineNo">2903</span> /**<a name="line.2903"></a> |
| <span class="sourceLineNo">2904</span> * Calculate gradient (or partial derivatives) by central difference<a name="line.2904"></a> |
| <span class="sourceLineNo">2905</span> * @param y<a name="line.2905"></a> |
| <span class="sourceLineNo">2906</span> * @param x one or more datasets for dependent variables<a name="line.2906"></a> |
| <span class="sourceLineNo">2907</span> * @return a list of datasets (one for each dimension in y)<a name="line.2907"></a> |
| <span class="sourceLineNo">2908</span> */<a name="line.2908"></a> |
| <span class="sourceLineNo">2909</span> public static List<Dataset> gradient(Dataset y, Dataset... x) {<a name="line.2909"></a> |
| <span class="sourceLineNo">2910</span> final int rank = y.getRank();<a name="line.2910"></a> |
| <span class="sourceLineNo">2911</span><a name="line.2911"></a> |
| <span class="sourceLineNo">2912</span> if (x.length > 0) {<a name="line.2912"></a> |
| <span class="sourceLineNo">2913</span> if (x.length != rank) {<a name="line.2913"></a> |
| <span class="sourceLineNo">2914</span> throw new IllegalArgumentException("Number of dependent datasets must be equal to rank of first argument");<a name="line.2914"></a> |
| <span class="sourceLineNo">2915</span> }<a name="line.2915"></a> |
| <span class="sourceLineNo">2916</span> for (int a = 0; a < rank; a++) {<a name="line.2916"></a> |
| <span class="sourceLineNo">2917</span> int rx = x[a].getRank();<a name="line.2917"></a> |
| <span class="sourceLineNo">2918</span> if (rx != rank && rx != 1) {<a name="line.2918"></a> |
| <span class="sourceLineNo">2919</span> throw new IllegalArgumentException("Dependent datasets must be 1-D or match rank of first argument");<a name="line.2919"></a> |
| <span class="sourceLineNo">2920</span> }<a name="line.2920"></a> |
| <span class="sourceLineNo">2921</span> if (rx == 1) {<a name="line.2921"></a> |
| <span class="sourceLineNo">2922</span> if (y.getShapeRef()[a] != x[a].getShapeRef()[0]) {<a name="line.2922"></a> |
| <span class="sourceLineNo">2923</span> throw new IllegalArgumentException("Length of dependent dataset must match axis length");<a name="line.2923"></a> |
| <span class="sourceLineNo">2924</span> }<a name="line.2924"></a> |
| <span class="sourceLineNo">2925</span> } else {<a name="line.2925"></a> |
| <span class="sourceLineNo">2926</span> y.checkCompatibility(x[a]);<a name="line.2926"></a> |
| <span class="sourceLineNo">2927</span> }<a name="line.2927"></a> |
| <span class="sourceLineNo">2928</span> }<a name="line.2928"></a> |
| <span class="sourceLineNo">2929</span> }<a name="line.2929"></a> |
| <span class="sourceLineNo">2930</span><a name="line.2930"></a> |
| <span class="sourceLineNo">2931</span> List<Dataset> grad = new ArrayList<Dataset>(rank);<a name="line.2931"></a> |
| <span class="sourceLineNo">2932</span><a name="line.2932"></a> |
| <span class="sourceLineNo">2933</span> for (int a = 0; a < rank; a++) {<a name="line.2933"></a> |
| <span class="sourceLineNo">2934</span> Dataset g = centralDifference(y, a);<a name="line.2934"></a> |
| <span class="sourceLineNo">2935</span> grad.add(g);<a name="line.2935"></a> |
| <span class="sourceLineNo">2936</span> }<a name="line.2936"></a> |
| <span class="sourceLineNo">2937</span><a name="line.2937"></a> |
| <span class="sourceLineNo">2938</span> if (x.length > 0) {<a name="line.2938"></a> |
| <span class="sourceLineNo">2939</span> for (int a = 0; a < rank; a++) {<a name="line.2939"></a> |
| <span class="sourceLineNo">2940</span> Dataset g = grad.get(a);<a name="line.2940"></a> |
| <span class="sourceLineNo">2941</span> Dataset dx = x[a];<a name="line.2941"></a> |
| <span class="sourceLineNo">2942</span> int r = dx.getRank();<a name="line.2942"></a> |
| <span class="sourceLineNo">2943</span> if (r == rank) {<a name="line.2943"></a> |
| <span class="sourceLineNo">2944</span> g.idivide(centralDifference(dx, a));<a name="line.2944"></a> |
| <span class="sourceLineNo">2945</span> } else {<a name="line.2945"></a> |
| <span class="sourceLineNo">2946</span> final int dt = dx.getDType();<a name="line.2946"></a> |
| <span class="sourceLineNo">2947</span> final int is = dx.getElementsPerItem();<a name="line.2947"></a> |
| <span class="sourceLineNo">2948</span> @SuppressWarnings("deprecation")<a name="line.2948"></a> |
| <span class="sourceLineNo">2949</span> final Dataset bdx = DatasetFactory.zeros(is, y.getShapeRef(), dt);<a name="line.2949"></a> |
| <span class="sourceLineNo">2950</span> final PositionIterator pi = y.getPositionIterator(a);<a name="line.2950"></a> |
| <span class="sourceLineNo">2951</span> final int[] pos = pi.getPos();<a name="line.2951"></a> |
| <span class="sourceLineNo">2952</span> final boolean[] hit = pi.getOmit();<a name="line.2952"></a> |
| <span class="sourceLineNo">2953</span> dx = centralDifference(dx, 0);<a name="line.2953"></a> |
| <span class="sourceLineNo">2954</span><a name="line.2954"></a> |
| <span class="sourceLineNo">2955</span> while (pi.hasNext()) {<a name="line.2955"></a> |
| <span class="sourceLineNo">2956</span> bdx.setItemsOnAxes(pos, hit, dx.getBuffer());<a name="line.2956"></a> |
| <span class="sourceLineNo">2957</span> }<a name="line.2957"></a> |
| <span class="sourceLineNo">2958</span> g.idivide(bdx);<a name="line.2958"></a> |
| <span class="sourceLineNo">2959</span> }<a name="line.2959"></a> |
| <span class="sourceLineNo">2960</span> }<a name="line.2960"></a> |
| <span class="sourceLineNo">2961</span> }<a name="line.2961"></a> |
| <span class="sourceLineNo">2962</span> return grad;<a name="line.2962"></a> |
| <span class="sourceLineNo">2963</span> }<a name="line.2963"></a> |
| <span class="sourceLineNo">2964</span>}<a name="line.2964"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
