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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.io.Serializable;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span>import java.lang.reflect.Array;<a name="line.16"></a> |
| <span class="sourceLineNo">017</span>import java.util.ArrayList;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.util.Arrays;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.util.Comparator;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.List;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.commons.math3.util.MathArrays;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.eclipse.january.DatasetException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.slf4j.Logger;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.slf4j.LoggerFactory;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>/**<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * Utilities for manipulating datasets<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> */<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>@SuppressWarnings("unchecked")<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>public class DatasetUtils {<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> /**<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * Setup the logging facilities<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> */<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> transient protected static final Logger utilsLogger = LoggerFactory.getLogger(DatasetUtils.class);<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> /**<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * Append copy of dataset with another dataset along n-th axis<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> *<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @param a<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * @param b<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * @param axis<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * number of axis (negative number counts from last)<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * @return appended dataset<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> public static Dataset append(IDataset a, IDataset b, int axis) {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> final int[] ashape = a.getShape();<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> final int rank = ashape.length;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> final int[] bshape = b.getShape();<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> if (rank != bshape.length) {<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> throw new IllegalArgumentException("Incompatible number of dimensions");<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> }<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> axis = ShapeUtils.checkAxis(rank, axis);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> for (int i = 0; i < rank; i++) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> if (i != axis && ashape[i] != bshape[i]) {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> throw new IllegalArgumentException("Incompatible dimensions");<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> final int[] nshape = new int[rank];<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> for (int i = 0; i < rank; i++) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> nshape[i] = ashape[i];<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> }<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> nshape[axis] += bshape[axis];<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> final Class<? extends Dataset> ot = InterfaceUtils.getInterface(b);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> final Class<? extends Dataset> dt = InterfaceUtils.getInterface(a);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> Dataset ds = DatasetFactory.zeros(a.getElementsPerItem(), InterfaceUtils.getBestInterface(ot, dt), nshape);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> IndexIterator iter = ds.getIterator(true);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> int[] pos = iter.getPos();<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> while (iter.hasNext()) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> int d = ashape[axis];<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> if (pos[axis] < d) {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> ds.setObjectAbs(iter.index, a.getObject(pos));<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> } else {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> pos[axis] -= d;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> ds.setObjectAbs(iter.index, b.getObject(pos));<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> pos[axis] += d;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> }<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> return ds;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> /**<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * Changes specific items of dataset by replacing them with other array<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * @param a<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * @param indices dataset interpreted as integers<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * @param values<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * @return changed dataset<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> */<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> public static <T extends Dataset> T put(final T a, final Dataset indices, Object values) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> IndexIterator it = indices.getIterator();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> Dataset vd = DatasetFactory.createFromObject(values).flatten();<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> int vlen = vd.getSize();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> int v = 0;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> while (it.hasNext()) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (v >= vlen) v -= vlen;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> a.setObjectAbs((int) indices.getElementLongAbs(it.index), vd.getObjectAbs(v++));<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> return a;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<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> * Changes specific items of dataset by replacing them with other array<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * @param a<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param indices<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @param values<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * @return changed dataset<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> */<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> public static <T extends Dataset> T put(final T a, final int[] indices, Object values) {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> int ilen = indices.length;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Dataset vd = DatasetFactory.createFromObject(values).flatten();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> int vlen = vd.getSize();<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> for (int i = 0, v= 0; i < ilen; i++) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> if (v >= vlen) v -= vlen;<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> a.setObjectAbs(indices[i], vd.getObjectAbs(v++));<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> return a;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> /**<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * Take items from dataset along an axis<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * @param indices dataset interpreted as integers<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @param axis if null, then use flattened view<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> * @return a sub-array<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> */<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> public static <T extends Dataset> T take(final T a, final Dataset indices, Integer axis) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> IntegerDataset indexes = (IntegerDataset) indices.flatten().cast(IntegerDataset.class);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> return take(a, indexes.getData(), axis);<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> * Take items from dataset along an axis<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param indices<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @param axis if null, then use flattened view<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * @return a sub-array<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> */<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> public static <T extends Dataset> T take(final T a, final int[] indices, Integer axis) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> if (indices == null || indices.length == 0) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> utilsLogger.error("No indices given");<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> throw new IllegalArgumentException("No indices given");<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> int[] ashape = a.getShape();<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> final int rank = ashape.length;<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> final Class<? extends Dataset> ac = a.getClass();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> final int ilen = indices.length;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> final int is = a.getElementsPerItem();<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> Dataset result;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (axis == null) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> ashape = new int[1];<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> ashape[0] = ilen;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> result = DatasetFactory.zeros(is, ac, ashape);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> Serializable src = a.getBuffer();<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> for (int i = 0; i < ilen; i++) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> ((AbstractDataset) result).setItemDirect(i, indices[i], src);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> } else {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> axis = a.checkAxis(axis);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> ashape[axis] = ilen;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> result = DatasetFactory.zeros(is, ac, ashape);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> int[] dpos = new int[rank];<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> int[] spos = new int[rank];<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> boolean[] axes = new boolean[rank];<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> Arrays.fill(axes, true);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> axes[axis] = false;<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> Serializable src = a.getBuffer();<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> for (int i = 0; i < ilen; i++) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> spos[axis] = indices[i];<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> dpos[axis] = i;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> SliceIterator siter = a.getSliceIteratorFromAxes(spos, axes);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> SliceIterator diter = result.getSliceIteratorFromAxes(dpos, axes);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> while (siter.hasNext() && diter.hasNext()) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> ((AbstractDataset) result).setItemDirect(diter.index, siter.index, src);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> result.setDirty();<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> return (T) result;<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> /**<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * Construct a dataset that contains the original dataset repeated the number<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * of times in each axis given by corresponding entries in the reps array<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> *<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * @param a<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * @param reps<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * @return tiled dataset<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> */<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> public static Dataset tile(final IDataset a, int... reps) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> int[] shape = a.getShape();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> int rank = shape.length;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> final int rlen = reps.length;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span><a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // expand shape<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> if (rank < rlen) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> int[] newShape = new int[rlen];<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> int extraRank = rlen - rank;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> for (int i = 0; i < extraRank; i++) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> newShape[i] = 1;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> for (int i = 0; i < rank; i++) {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> newShape[i+extraRank] = shape[i];<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> shape = newShape;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> rank = rlen;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> } else if (rank > rlen) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> int[] newReps = new int[rank];<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> int extraRank = rank - rlen;<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> for (int i = 0; i < extraRank; i++) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> newReps[i] = 1;<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> for (int i = 0; i < rlen; i++) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> newReps[i+extraRank] = reps[i];<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> reps = newReps;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span><a name="line.224"></a> |
| <span class="sourceLineNo">225</span> // calculate new shape<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> int[] newShape = new int[rank];<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> for (int i = 0; i < rank; i++) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> newShape[i] = shape[i]*reps[i];<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> Dataset tdata = DatasetFactory.zeros(a.getElementsPerItem(), InterfaceUtils.getInterfaceFromClass(a.getElementsPerItem(), a.getElementClass()), newShape);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> // decide which way to put slices<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> boolean manyColumns;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> if (rank == 1)<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> manyColumns = true;<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> else<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> manyColumns = shape[rank-1] > 64;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> if (manyColumns) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> // generate each start point and put a slice in<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> IndexIterator iter = tdata.getSliceIterator(null, null, shape);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> SliceIterator siter = (SliceIterator) tdata.getSliceIterator(null, shape, null);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> final int[] pos = iter.getPos();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> while (iter.hasNext()) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> siter.setStart(pos);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> tdata.setSlice(a, siter);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> } else {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> // for each value, set slice given by repeats<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> final int[] skip = new int[rank];<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> for (int i = 0; i < rank; i++) {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> if (reps[i] == 1) {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> skip[i] = newShape[i];<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> } else {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> skip[i] = shape[i];<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> Dataset aa = convertToDataset(a);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> IndexIterator ita = aa.getIterator(true);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> final int[] pos = ita.getPos();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span><a name="line.264"></a> |
| <span class="sourceLineNo">265</span> final int[] sstart = new int[rank];<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> final int extra = rank - pos.length;<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> for (int i = 0; i < extra; i++) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> sstart[i] = 0;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> SliceIterator siter = (SliceIterator) tdata.getSliceIterator(sstart, null, skip);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> while (ita.hasNext()) {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> for (int i = 0; i < pos.length; i++) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> sstart[i + extra] = pos[i];<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> siter.setStart(sstart);<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> tdata.setSlice(aa.getObjectAbs(ita.index), siter);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return tdata;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> /**<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * Permute copy of dataset's axes so that given order is old order:<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * <pre>{@literal <a name="line.285"></a> |
| <span class="sourceLineNo">286</span> * axisPerm = (p(0), p(1),...) => newdata(n(0), n(1),...) = olddata(o(0), o(1), ...)<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> * such that n(i) = o(p(i)) for all i<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> * }</pre><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * I.e. for a 3D dataset (1,0,2) implies the new dataset has its 1st dimension<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * running along the old dataset's 2nd dimension and the new 2nd is the old 1st.<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> * The 3rd dimension is left unchanged.<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> *<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * @param a<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * @param axes if null or zero length then axes order reversed<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> * @return remapped copy of data<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> */<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> public static Dataset transpose(final IDataset a, int... axes) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> return convertToDataset(a).transpose(axes);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<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> * Swap two axes in dataset<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> * @param a<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> * @param axis1<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> * @param axis2<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> * @return swapped dataset<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> */<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> public static Dataset swapAxes(final IDataset a, int axis1, int axis2) {<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> return convertToDataset(a).swapAxes(axis1, axis2);<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> }<a name="line.310"></a> |
| <span class="sourceLineNo">311</span><a name="line.311"></a> |
| <span class="sourceLineNo">312</span> /**<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> * @param a<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> * @return sorted flattened copy of dataset<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> */<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> public static <T extends Dataset> T sort(final T a) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> return sort(a, (Integer) null);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span><a name="line.319"></a> |
| <span class="sourceLineNo">320</span> /**<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> * @param a<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> * @param axis to sort along, if null then dataset is first flattened<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * @return dataset sorted along axis<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> */<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> public static <T extends Dataset> T sort(final T a, final Integer axis) {<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> Dataset s = a.clone();<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> return (T) s.sort(axis);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span><a name="line.329"></a> |
| <span class="sourceLineNo">330</span> /**<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> * Sort in place given dataset and reorder ancillary datasets too<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> * @param a dataset to be sorted<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> * @param b ancillary datasets<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> */<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> public static void sort(Dataset a, Dataset... b) {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> if (!DTypeUtils.isDTypeNumerical(a.getDType())) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> throw new UnsupportedOperationException("Sorting non-numerical datasets not supported yet");<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span><a name="line.339"></a> |
| <span class="sourceLineNo">340</span> // gather all datasets as double dataset copies<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> DoubleDataset s = copy(DoubleDataset.class, a);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> int l = b == null ? 0 : b.length;<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> DoubleDataset[] t = new DoubleDataset[l];<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> int n = 0;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> for (int i = 0; i < l; i++) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> if (b[i] != null) {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> if (!DTypeUtils.isDTypeNumerical(b[i].getDType())) {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> throw new UnsupportedOperationException("Sorting non-numerical datasets not supported yet");<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> t[i] = copy(DoubleDataset.class, b[i]);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> n++;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> }<a name="line.353"></a> |
| <span class="sourceLineNo">354</span><a name="line.354"></a> |
| <span class="sourceLineNo">355</span> double[][] y = new double[n][];<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> for (int i = 0, j = 0; i < l; i++) {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (t[i] != null) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> y[j++] = t[i].getData();<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> }<a name="line.360"></a> |
| <span class="sourceLineNo">361</span><a name="line.361"></a> |
| <span class="sourceLineNo">362</span> MathArrays.sortInPlace(s.getData(), y);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span><a name="line.363"></a> |
| <span class="sourceLineNo">364</span> a.setSlice(s);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> for (int i = 0; i < l; i++) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> if (b[i] != null) {<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> b[i].setSlice(t[i]);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> }<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><a name="line.371"></a> |
| <span class="sourceLineNo">372</span> /**<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> * Indirectly sort along given axis<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> * @param a dataset whose indexes will be sorted<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> * @param axis to sort along, if null then dataset is first flattened<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * @return indexes<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * @since 2.1<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> */<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> public static IntegerDataset indexSort(Dataset a, Integer axis) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> if (axis == null) {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> int size = a.getSize();<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> Integer[] index = new Integer[size];<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> for (int i = 0; i < size; i++) {<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> index[i] = i;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> }<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> final Dataset f = a.flatten(); // is this correct for views??? Check with NumPy<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> Comparator<Integer> cmp = new Comparator<Integer>() {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span><a name="line.388"></a> |
| <span class="sourceLineNo">389</span> @Override<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> public int compare(Integer o1, Integer o2) {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span><a name="line.391"></a> |
| <span class="sourceLineNo">392</span> return Double.compare(f.getElementDoubleAbs(o1), f.getElementDoubleAbs(o2));<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> }<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> };<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> Arrays.sort(index, cmp);<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> return DatasetFactory.createFromObject(IntegerDataset.class, index);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> }<a name="line.397"></a> |
| <span class="sourceLineNo">398</span><a name="line.398"></a> |
| <span class="sourceLineNo">399</span> axis = a.checkAxis(axis);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> final int[] shape = a.getShapeRef();<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> IntegerDataset id = DatasetFactory.zeros(IntegerDataset.class, shape);<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> int size = shape[axis];<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> Integer[] index = new Integer[size];<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> int[] dShape = new int[shape.length];<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> Arrays.fill(dShape, 1);<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> dShape[axis] = size;<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> final DoubleDataset dd = DatasetFactory.zeros(DoubleDataset.class, dShape);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> final Comparator<Integer> cmp = new Comparator<Integer>() {<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> @Override<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> public int compare(Integer o1, Integer o2) {<a name="line.411"></a> |
| <span class="sourceLineNo">412</span><a name="line.412"></a> |
| <span class="sourceLineNo">413</span> return Double.compare(dd.getElementDoubleAbs(o1), dd.getElementDoubleAbs(o2));<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> }<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> };<a name="line.415"></a> |
| <span class="sourceLineNo">416</span><a name="line.416"></a> |
| <span class="sourceLineNo">417</span> SliceND ds = new SliceND(dShape);<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> SliceNDIterator it = new SliceNDIterator(new SliceND(shape), axis);<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> int[] pos = it.getPos();<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> int[] ipos = pos.clone();<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> while (it.hasNext()) {<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> dd.setSlice(a.getSliceView(it.getCurrentSlice()), ds);<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> for (int i = 0; i < size; i++) {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> index[i] = i;<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> }<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> Arrays.sort(index, cmp);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span><a name="line.427"></a> |
| <span class="sourceLineNo">428</span> System.arraycopy(pos, 0, ipos, 0, pos.length);<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> for (int i = 0; i < size; i++) {<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> ipos[axis] = i;<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> id.set(index[i], ipos);<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> }<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span><a name="line.434"></a> |
| <span class="sourceLineNo">435</span> return id;<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> }<a name="line.436"></a> |
| <span class="sourceLineNo">437</span><a name="line.437"></a> |
| <span class="sourceLineNo">438</span> /**<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> * Concatenate the set of datasets along given axis<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> * @param as<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> * @param axis<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> * @return concatenated dataset<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> */<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> public static Dataset concatenate(final IDataset[] as, int axis) {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> if (as == null || as.length == 0) {<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> utilsLogger.error("No datasets given");<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> throw new IllegalArgumentException("No datasets given");<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> }<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> IDataset a = as[0];<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> if (as.length == 1) {<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> return convertToDataset(a.clone());<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> }<a name="line.452"></a> |
| <span class="sourceLineNo">453</span><a name="line.453"></a> |
| <span class="sourceLineNo">454</span> int[] ashape = a.getShape();<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> axis = ShapeUtils.checkAxis(ashape.length, axis);<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> Class<? extends Dataset> ac = InterfaceUtils.getInterface(a);<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> int anum = as.length;<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> int isize = a.getElementsPerItem();<a name="line.458"></a> |
| <span class="sourceLineNo">459</span><a name="line.459"></a> |
| <span class="sourceLineNo">460</span> int i = 1;<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> for (; i < anum; i++) {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> if (!ac.equals(InterfaceUtils.getInterface(as[i]))) {<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> utilsLogger.error("Datasets are not of same type");<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> break;<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> }<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> if (!ShapeUtils.areShapesCompatible(ashape, as[i].getShape(), axis)) {<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> utilsLogger.error("Datasets' shapes are not equal");<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> break;<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> }<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> final int is = as[i].getElementsPerItem();<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> if (isize < is)<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> isize = is;<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> }<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> if (i < anum) {<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> utilsLogger.error("Dataset are not compatible");<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> throw new IllegalArgumentException("Datasets are not compatible");<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span><a name="line.478"></a> |
| <span class="sourceLineNo">479</span> for (i = 1; i < anum; i++) {<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> ashape[axis] += as[i].getShape()[axis];<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> }<a name="line.481"></a> |
| <span class="sourceLineNo">482</span><a name="line.482"></a> |
| <span class="sourceLineNo">483</span> Dataset result = DatasetFactory.zeros(isize, ac, ashape);<a name="line.483"></a> |
| <span class="sourceLineNo">484</span><a name="line.484"></a> |
| <span class="sourceLineNo">485</span> int[] start = new int[ashape.length];<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> int[] stop = ashape;<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> stop[axis] = 0;<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> for (i = 0; i < anum; i++) {<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> IDataset b = as[i];<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> int[] bshape = b.getShape();<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> stop[axis] += bshape[axis];<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> result.setSlice(b, start, stop, null);<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> start[axis] += bshape[axis];<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> }<a name="line.494"></a> |
| <span class="sourceLineNo">495</span><a name="line.495"></a> |
| <span class="sourceLineNo">496</span> return result;<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span><a name="line.498"></a> |
| <span class="sourceLineNo">499</span> /**<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> * Split a dataset into equal sections along given axis<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> * @param a<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> * @param sections<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> * @param axis<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> * @param checkEqual makes sure the division is into equal parts<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> * @return list of split datasets<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> */<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> public static List<Dataset> split(final Dataset a, int sections, int axis, final boolean checkEqual) {<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> int[] ashape = a.getShapeRef();<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> axis = a.checkAxis(axis);<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> int imax = ashape[axis];<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> if (checkEqual && (imax%sections) != 0) {<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> utilsLogger.error("Number of sections does not divide axis into equal parts");<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> throw new IllegalArgumentException("Number of sections does not divide axis into equal parts");<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> int n = (imax + sections - 1) / sections;<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> int[] indices = new int[sections-1];<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> for (int i = 1; i < sections; i++)<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> indices[i-1] = n*i;<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> return split(a, indices, axis);<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> }<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> * Split a dataset into parts along given axis<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> * @param a<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> * @param indices<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> * @param axis<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> * @return list of split datasets<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> */<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> public static List<Dataset> split(final Dataset a, int[] indices, int axis) {<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> final int[] ashape = a.getShapeRef();<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> axis = a.checkAxis(axis);<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> final int rank = ashape.length;<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> final int imax = ashape[axis];<a name="line.533"></a> |
| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> final List<Dataset> result = new ArrayList<Dataset>();<a name="line.535"></a> |
| <span class="sourceLineNo">536</span><a name="line.536"></a> |
| <span class="sourceLineNo">537</span> final int[] nshape = ashape.clone();<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> final int is = a.getElementsPerItem();<a name="line.538"></a> |
| <span class="sourceLineNo">539</span><a name="line.539"></a> |
| <span class="sourceLineNo">540</span> int oind = 0;<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> final int[] start = new int[rank];<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> final int[] stop = new int[rank];<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> final int[] step = new int[rank];<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> for (int i = 0; i < rank; i++) {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> start[i] = 0;<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> stop[i] = ashape[i];<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> step[i] = 1;<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> }<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> for (int ind : indices) {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> if (ind > imax) {<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> result.add(DatasetFactory.zeros(is, a.getClass(), 0));<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> } else {<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> nshape[axis] = ind - oind;<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> start[axis] = oind;<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> stop[axis] = ind;<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> Dataset n = DatasetFactory.zeros(is, a.getClass(), nshape);<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> IndexIterator iter = a.getSliceIterator(start, stop, step);<a name="line.557"></a> |
| <span class="sourceLineNo">558</span><a name="line.558"></a> |
| <span class="sourceLineNo">559</span> a.fillDataset(n, iter);<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> result.add(n);<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> oind = ind;<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> }<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> }<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> if (imax > oind) {<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> nshape[axis] = imax - oind;<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> start[axis] = oind;<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> stop[axis] = imax;<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> Dataset n = DatasetFactory.zeros(is, a.getClass(), nshape);<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> IndexIterator iter = a.getSliceIterator(start, stop, step);<a name="line.570"></a> |
| <span class="sourceLineNo">571</span><a name="line.571"></a> |
| <span class="sourceLineNo">572</span> a.fillDataset(n, iter);<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> result.add(n);<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> return result;<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> }<a name="line.577"></a> |
| <span class="sourceLineNo">578</span><a name="line.578"></a> |
| <span class="sourceLineNo">579</span> /**<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> * Constructs a dataset which has its elements along an axis replicated from<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> * the original dataset by the number of times given in the repeats array.<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> *<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> * By default, axis=-1 implies using a flattened version of the input dataset<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> *<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> * @param a<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> * @param repeats<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> * @param axis<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> * @return dataset<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> */<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> public static <T extends Dataset> T repeat(T a, int[] repeats, int axis) {<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> Serializable buf = a.getBuffer();<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> int[] shape = a.getShape();<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> int rank = shape.length;<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> final int is = a.getElementsPerItem();<a name="line.594"></a> |
| <span class="sourceLineNo">595</span><a name="line.595"></a> |
| <span class="sourceLineNo">596</span> if (axis >= rank) {<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> utilsLogger.warn("Axis value is out of bounds");<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> throw new IllegalArgumentException("Axis value is out of bounds");<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> }<a name="line.599"></a> |
| <span class="sourceLineNo">600</span><a name="line.600"></a> |
| <span class="sourceLineNo">601</span> int alen;<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> if (axis < 0) {<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> alen = a.getSize();<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> axis = 0;<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> rank = 1;<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> shape[0] = alen;<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> } else {<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> alen = shape[axis];<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> }<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> int rlen = repeats.length;<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> if (rlen != 1 && rlen != alen) {<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> utilsLogger.warn("Repeats array should have length of 1 or match chosen axis");<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> throw new IllegalArgumentException("Repeats array should have length of 1 or match chosen axis");<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> }<a name="line.614"></a> |
| <span class="sourceLineNo">615</span><a name="line.615"></a> |
| <span class="sourceLineNo">616</span> for (int i = 0; i < rlen; i++) {<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> if (repeats[i] < 0) {<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> utilsLogger.warn("Negative repeat value is not allowed");<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> throw new IllegalArgumentException("Negative repeat value is not allowed");<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> }<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> }<a name="line.621"></a> |
| <span class="sourceLineNo">622</span><a name="line.622"></a> |
| <span class="sourceLineNo">623</span> int[] newShape = new int[rank];<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> for (int i = 0; i < rank; i ++)<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> newShape[i] = shape[i];<a name="line.625"></a> |
| <span class="sourceLineNo">626</span><a name="line.626"></a> |
| <span class="sourceLineNo">627</span> // do single repeat separately<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> if (repeats.length == 1) {<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> newShape[axis] *= repeats[0];<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> } else {<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> int nlen = 0;<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> for (int i = 0; i < alen; i++) {<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> nlen += repeats[i];<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> newShape[axis] = nlen;<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> }<a name="line.636"></a> |
| <span class="sourceLineNo">637</span><a name="line.637"></a> |
| <span class="sourceLineNo">638</span> Dataset rdata = DatasetFactory.zeros(is, a.getClass(), newShape);<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> Serializable nbuf = rdata.getBuffer();<a name="line.639"></a> |
| <span class="sourceLineNo">640</span><a name="line.640"></a> |
| <span class="sourceLineNo">641</span> int csize = is; // chunk size<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> for (int i = axis+1; i < rank; i++) {<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> csize *= newShape[i];<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> }<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> int nout = 1;<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> for (int i = 0; i < axis; i++) {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> nout *= newShape[i];<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> int oi = 0;<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> int ni = 0;<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> if (rlen == 1) { // do single repeat separately<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> for (int i = 0; i < nout; i++) {<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> for (int j = 0; j < shape[axis]; j++) {<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> for (int k = 0; k < repeats[0]; k++) {<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> System.arraycopy(buf, oi, nbuf, ni, csize);<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> ni += csize;<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> }<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> oi += csize;<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> }<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> }<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> } else {<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> for (int i = 0; i < nout; i++) {<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> for (int j = 0; j < shape[axis]; j++) {<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> for (int k = 0; k < repeats[j]; k++) {<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> System.arraycopy(buf, oi, nbuf, ni, csize);<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> ni += csize;<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> }<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> oi += csize;<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> }<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><a name="line.673"></a> |
| <span class="sourceLineNo">674</span> return (T) rdata;<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> }<a name="line.675"></a> |
| <span class="sourceLineNo">676</span><a name="line.676"></a> |
| <span class="sourceLineNo">677</span> /**<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> * Resize a dataset<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> * @param a<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> * @param shape<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> * @return new dataset with new shape and items that are truncated or repeated, as necessary<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> */<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> public static <T extends Dataset> T resize(final T a, final int... shape) {<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> int size = a.getSize();<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> Dataset rdata = DatasetFactory.zeros(a.getElementsPerItem(), a.getClass(), shape);<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> IndexIterator it = rdata.getIterator();<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> while (it.hasNext()) {<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> rdata.setObjectAbs(it.index, a.getObjectAbs(it.index % size));<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> return (T) rdata;<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> }<a name="line.692"></a> |
| <span class="sourceLineNo">693</span><a name="line.693"></a> |
| <span class="sourceLineNo">694</span> /**<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> * Copy and cast a dataset<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> *<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> * @param d<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> * The dataset to be copied<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> * @param dtype dataset type<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> * @return copied dataset of given type<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> * such as {@link #copy(Class, IDataset)}<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> */<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> @Deprecated<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> public static Dataset copy(final IDataset d, final int dtype) {<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> return copy(DTypeUtils.getInterface(dtype), d);<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> }<a name="line.707"></a> |
| <span class="sourceLineNo">708</span><a name="line.708"></a> |
| <span class="sourceLineNo">709</span> /**<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> * Cast a dataset<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> *<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> * @param clazz dataset class<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> * @param d<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> * The dataset to be cast.<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> * @return dataset of given class (or same dataset if already of the right class)<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> */<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> public static <T extends Dataset> T copy(Class<T> clazz, final IDataset d) {<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> Dataset a = convertToDataset(d);<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> Dataset c = null;<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> try {<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> // copy across the data<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> if (BooleanDataset.class.equals(clazz)) {<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> c = new BooleanDataset(a);<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> } else if (ByteDataset.class.equals(clazz)) {<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> c = new ByteDataset(a);<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> } else if (ShortDataset.class.equals(clazz)) {<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> c = new ShortDataset(a);<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> } else if (IntegerDataset.class.equals(clazz)) {<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> c = new IntegerDataset(a);<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> } else if (LongDataset.class.equals(clazz)) {<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> c = new LongDataset(a);<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> } else if (CompoundByteDataset.class.equals(clazz)) {<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> if (a instanceof CompoundByteDataset) {<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> c = new CompoundByteDataset((CompoundDataset) a);<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> } else {<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> c = new CompoundByteDataset(a);<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> }<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> } else if (CompoundShortDataset.class.equals(clazz)) {<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> if (a instanceof CompoundDataset) {<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> c = new CompoundShortDataset((CompoundDataset) a);<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> } else {<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> c = new CompoundShortDataset(a);<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> }<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> } else if (CompoundIntegerDataset.class.equals(clazz)) {<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> if (a instanceof CompoundDataset) {<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> c = new CompoundIntegerDataset((CompoundDataset) a);<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> } else {<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> c = new CompoundIntegerDataset(a);<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> }<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> } else if (CompoundLongDataset.class.equals(clazz)) {<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> if (a instanceof CompoundDataset) {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> c = new CompoundLongDataset((CompoundDataset) a);<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> } else {<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> c = new CompoundLongDataset(a);<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> }<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> } else if (FloatDataset.class.equals(clazz)) {<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> c = new FloatDataset(a);<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> } else if (DoubleDataset.class.equals(clazz)) {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> c = new DoubleDataset(a);<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> } else if (CompoundFloatDataset.class.equals(clazz)) {<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> if (a instanceof CompoundDataset) {<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> c = new CompoundFloatDataset((CompoundDataset) a);<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> } else {<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> c = new CompoundFloatDataset(a);<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> }<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> } else if (CompoundDoubleDataset.class.equals(clazz)) {<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> if (a instanceof CompoundDataset) {<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> c = new CompoundDoubleDataset((CompoundDataset) a);<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> } else {<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> c = new CompoundDoubleDataset(a);<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> }<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> } else if (ComplexFloatDataset.class.equals(clazz)) {<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> c = new ComplexFloatDataset(a);<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> } else if (ComplexDoubleDataset.class.equals(clazz)) {<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> c = new ComplexDoubleDataset(a);<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> } else if (RGBDataset.class.equals(clazz)) {<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> if (a instanceof CompoundDataset) {<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> c = RGBDataset.createFromCompoundDataset((CompoundDataset) a);<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> } else {<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> c = new RGBDataset(a);<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> }<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> } else if (StringDataset.class.equals(clazz)) {<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> c = new StringDataset(a);<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> } else if (DateDataset.class.equals(clazz)) {<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> c = DateDatasetImpl.createFromObject(a);<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> } else if (ObjectDataset.class.equals(clazz)) {<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> c = new ObjectDataset(a);<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> } else {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> utilsLogger.error("Dataset of unknown type!");<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> }<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> } catch (OutOfMemoryError e) {<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> utilsLogger.error("Not enough memory available to create dataset");<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> throw new OutOfMemoryError("Not enough memory available to create dataset");<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span><a name="line.795"></a> |
| <span class="sourceLineNo">796</span> return (T) c;<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> }<a name="line.797"></a> |
| <span class="sourceLineNo">798</span><a name="line.798"></a> |
| <span class="sourceLineNo">799</span> /**<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> * Cast a dataset<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> *<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> * @param d<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> * The dataset to be cast.<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> * @param dtype dataset type<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> * @return dataset of given type (or same dataset if already of the right type)<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> * such as {@link #cast(Class, IDataset)}<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> */<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> @Deprecated<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> public static Dataset cast(final IDataset d, final int dtype) {<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> return cast(DTypeUtils.getInterface(dtype), d);<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> }<a name="line.812"></a> |
| <span class="sourceLineNo">813</span><a name="line.813"></a> |
| <span class="sourceLineNo">814</span> /**<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> * Cast a dataset<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> * @param clazz dataset class<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> * @param d<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> * The dataset to be cast.<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> * @return dataset of given class<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> */<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> public static <T extends Dataset> T cast(Class<T> clazz, final IDataset d) {<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> Dataset a = convertToDataset(d);<a name="line.822"></a> |
| <span class="sourceLineNo">823</span><a name="line.823"></a> |
| <span class="sourceLineNo">824</span> if ((a.getClass().equals(clazz))) {<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> return (T) a;<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> }<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> return copy(clazz, d);<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> }<a name="line.828"></a> |
| <span class="sourceLineNo">829</span><a name="line.829"></a> |
| <span class="sourceLineNo">830</span> /**<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> * Cast a dataset<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> *<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> * @param d<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> * The dataset to be cast.<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> * @param repeat repeat elements over item<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> * @param dtype dataset type<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> * @param isize item size<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> * @return dataset of given type<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> * such as {@link #cast(Class, IDataset)}<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> */<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> @Deprecated<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> public static Dataset cast(final IDataset d, final boolean repeat, final int dtype, final int isize) {<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> return cast(isize, DTypeUtils.getInterface(dtype), d, repeat);<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> /**<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> * Cast a dataset<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> *<a name="line.849"></a> |
| <span class="sourceLineNo">850</span> * @param clazz dataset class<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> * @param d<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> * The dataset to be cast.<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> * @param repeat repeat elements over item<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> * @param dtype dataset type<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> * @param isize item size<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> * @since 2.3<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> */<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> public static <T extends Dataset> T cast(final int isize, Class<T> clazz, final IDataset d, final boolean repeat) {<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> Dataset a = convertToDataset(d);<a name="line.859"></a> |
| <span class="sourceLineNo">860</span><a name="line.860"></a> |
| <span class="sourceLineNo">861</span> if (a.getClass().equals(clazz) && a.getElementsPerItem() == isize) {<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> return (T) a;<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> }<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> if (isize <= 0) {<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> utilsLogger.error("Item size is invalid (>0)");<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> throw new IllegalArgumentException("Item size is invalid (>0)");<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> }<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> if (isize > 1 && !InterfaceUtils.isComplex(clazz) && InterfaceUtils.isElemental(clazz)) {<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> utilsLogger.error("Item size is inconsistent with dataset type");<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> throw new IllegalArgumentException("Item size is inconsistent with dataset type");<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> }<a name="line.871"></a> |
| <span class="sourceLineNo">872</span><a name="line.872"></a> |
| <span class="sourceLineNo">873</span> Dataset c = null;<a name="line.873"></a> |
| <span class="sourceLineNo">874</span><a name="line.874"></a> |
| <span class="sourceLineNo">875</span> try {<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> // copy across the data<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> if (BooleanDataset.class.equals(clazz)) {<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> c = new BooleanDataset(a);<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> } else if (ByteDataset.class.equals(clazz)) {<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> c = new ByteDataset(a);<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> } else if (ShortDataset.class.equals(clazz)) {<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> c = new ShortDataset(a);<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> } else if (IntegerDataset.class.equals(clazz)) {<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> c = new IntegerDataset(a);<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> } else if (LongDataset.class.equals(clazz)) {<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> c = new LongDataset(a);<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> } else if (CompoundByteDataset.class.equals(clazz)) {<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> c = new CompoundByteDataset(isize, repeat, a);<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> } else if (CompoundShortDataset.class.equals(clazz)) {<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> c = new CompoundShortDataset(isize, repeat, a);<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> } else if (CompoundIntegerDataset.class.equals(clazz)) {<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> c = new CompoundIntegerDataset(isize, repeat, a);<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> } else if (CompoundLongDataset.class.equals(clazz)) {<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> c = new CompoundLongDataset(isize, repeat, a);<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> } else if (FloatDataset.class.equals(clazz)) {<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> c = new FloatDataset(a);<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> } else if (DoubleDataset.class.equals(clazz)) {<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> c = new DoubleDataset(a);<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> } else if (CompoundFloatDataset.class.equals(clazz)) {<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> c = new CompoundFloatDataset(isize, repeat, a);<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> } else if (CompoundDoubleDataset.class.equals(clazz)) {<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> c = new CompoundDoubleDataset(isize, repeat, a);<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> } else if (ComplexFloatDataset.class.equals(clazz)) {<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> c = new ComplexFloatDataset(a);<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> } else if (ComplexDoubleDataset.class.equals(clazz)) {<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> c = new ComplexDoubleDataset(a);<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> } else if (RGBDataset.class.equals(clazz)) {<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> if (a instanceof CompoundDataset) {<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> c = RGBDataset.createFromCompoundDataset((CompoundDataset) a);<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> } else {<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> c = new RGBDataset(a);<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> } else if (StringDataset.class.equals(clazz)) {<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> c = new StringDataset(a);<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> } else if (DateDataset.class.equals(clazz)) {<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> c = DateDatasetImpl.createFromObject(a);<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> } else if (ObjectDataset.class.equals(clazz)) {<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> c = new ObjectDataset(a);<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> } else {<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> utilsLogger.error("Dataset of unknown type!");<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> }<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> } catch (OutOfMemoryError e) {<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> utilsLogger.error("Not enough memory available to create dataset");<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> throw new OutOfMemoryError("Not enough memory available to create dataset");<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> }<a name="line.925"></a> |
| <span class="sourceLineNo">926</span><a name="line.926"></a> |
| <span class="sourceLineNo">927</span> return (T) c;<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> /**<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> * Cast array of datasets to a compound dataset<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> *<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> * @param clazz dataset class<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> * @param a<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> * The datasets to be cast.<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> * @return dataset of given class<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> * @since 2.3<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> */<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> public static <T extends CompoundDataset> T compoundCast(Class<T> clazz, final Dataset... a) {<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> return (T) cast((Class<? extends Dataset>) clazz, a);<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> }<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> * Cast array of datasets to a compound dataset<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> *<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> * @param clazz dataset class<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> * @param a<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> * The datasets to be cast.<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> * @return compound dataset of given class<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> * @since 2.3<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> */<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> public static CompoundDataset cast(Class<? extends Dataset> clazz, final Dataset... a) {<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> CompoundDataset c = null;<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> if (ByteDataset.class.equals(clazz) || CompoundByteDataset.class.equals(clazz)) {<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> c = new CompoundByteDataset(a);<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> } else if (ShortDataset.class.equals(clazz) || CompoundShortDataset.class.equals(clazz)) {<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> c = new CompoundShortDataset(a);<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> } else if (IntegerDataset.class.equals(clazz) || CompoundIntegerDataset.class.equals(clazz)) {<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> c = new CompoundIntegerDataset(a);<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> } else if (LongDataset.class.equals(clazz) || CompoundLongDataset.class.equals(clazz)) {<a name="line.961"></a> |
| <span class="sourceLineNo">962</span> c = new CompoundLongDataset(a);<a name="line.962"></a> |
| <span class="sourceLineNo">963</span> } else if (FloatDataset.class.equals(clazz) || CompoundFloatDataset.class.equals(clazz)) {<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> c = new CompoundFloatDataset(a);<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> } else if (DoubleDataset.class.equals(clazz) || CompoundDoubleDataset.class.equals(clazz)) {<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> c = new CompoundDoubleDataset(a);<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> } else if (ComplexFloatDataset.class.equals(clazz)) {<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> if (a.length != 2) {<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> throw new IllegalArgumentException("Need two datasets for complex dataset type");<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> }<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> c = new ComplexFloatDataset(a[0], a[1]);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> } else if (ComplexDoubleDataset.class.equals(clazz)) {<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> if (a.length != 2) {<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> throw new IllegalArgumentException("Need two datasets for complex dataset type");<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> }<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> c = new ComplexDoubleDataset(a[0], a[1]);<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> } else {<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> utilsLogger.error("Dataset of unsupported type!");<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> }<a name="line.979"></a> |
| <span class="sourceLineNo">980</span><a name="line.980"></a> |
| <span class="sourceLineNo">981</span> return c;<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> * Cast array of datasets to a compound dataset<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> *<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> * @param a<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> * The datasets to be cast.<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> * @return compound dataset of given type<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> * such as {@link #cast(Class, Dataset...)}<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> */<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> @Deprecated<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> public static CompoundDataset cast(final Dataset[] a, final int dtype) {<a name="line.994"></a> |
| <span class="sourceLineNo">995</span> return cast(DTypeUtils.getInterface(dtype), a);<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> /**<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> * Make a dataset unsigned by promoting it to a wider dataset type and unwrapping the signs<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> * of its contents<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> * @param a<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> * @return unsigned dataset or original if it is not an integer dataset<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> */<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> public static Dataset makeUnsigned(IDataset a) {<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> return makeUnsigned(a, false);<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> }<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span><a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> /**<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> * Make a dataset unsigned by promoting it to a wider dataset type and unwrapping the signs<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> * of its contents<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> * @param a<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> * @param check if true, then check for negative values<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> * @return unsigned dataset or original if it is not an integer dataset or it has been check for negative numbers<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> * @since 2.1<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> */<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> public static Dataset makeUnsigned(IDataset a, boolean check) {<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> Dataset d = convertToDataset(a);<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span><a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> if (d.hasFloatingPointElements()) {<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> return d;<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> }<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> if (check && d.min(true).longValue() >= 0) {<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> return d;<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> }<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span><a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> int dtype = d.getDType();<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> switch (dtype) {<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> case Dataset.INT32:<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> d = new LongDataset(d);<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> unwrapUnsigned(d, 32);<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> break;<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> case Dataset.INT16:<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> d = new IntegerDataset(d);<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> unwrapUnsigned(d, 16);<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> break;<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> case Dataset.INT8:<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> d = new ShortDataset(d);<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> unwrapUnsigned(d, 8);<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> break;<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> case Dataset.ARRAYINT32:<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> d = new CompoundLongDataset(d);<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> unwrapUnsigned(d, 32);<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> break;<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> case Dataset.ARRAYINT16:<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> d = new CompoundIntegerDataset(d);<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> unwrapUnsigned(d, 16);<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> break;<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> case Dataset.ARRAYINT8:<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> d = new CompoundShortDataset(d);<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> unwrapUnsigned(d, 8);<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> break;<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> }<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> return d;<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> }<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span><a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> /**<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> * Unwrap dataset elements so that all elements are unsigned<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> * @param a dataset<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> * @param bitWidth width of original primitive in bits<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> */<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> public static void unwrapUnsigned(Dataset a, final int bitWidth) {<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> final int dtype = a.getDType();<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> final double dv = 1L << bitWidth;<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> final int isize = a.getElementsPerItem();<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> IndexIterator it = a.getIterator();<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span><a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> switch (dtype) {<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> case Dataset.BOOL:<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> break;<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> case Dataset.INT8:<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> break;<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> case Dataset.INT16:<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> ShortDataset sds = (ShortDataset) a;<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> final short soffset = (short) dv;<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> while (it.hasNext()) {<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> final short x = sds.getAbs(it.index);<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> if (x < 0)<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> sds.setAbs(it.index, (short) (x + soffset));<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> }<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> break;<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> case Dataset.INT32:<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> IntegerDataset ids = (IntegerDataset) a;<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> final int ioffset = (int) dv;<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> while (it.hasNext()) {<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> final int x = ids.getAbs(it.index);<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> if (x < 0)<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> ids.setAbs(it.index, x + ioffset);<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> }<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> break;<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> case Dataset.INT64:<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> LongDataset lds = (LongDataset) a;<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> final long loffset = (long) dv;<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> while (it.hasNext()) {<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> final long x = lds.getAbs(it.index);<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> if (x < 0)<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> lds.setAbs(it.index, x + loffset);<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> }<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> break;<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> case Dataset.FLOAT32:<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> FloatDataset fds = (FloatDataset) a;<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> final float foffset = (float) dv;<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> while (it.hasNext()) {<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> final float x = fds.getAbs(it.index);<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> if (x < 0)<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> fds.setAbs(it.index, x + foffset);<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> }<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> break;<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> case Dataset.FLOAT64:<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> DoubleDataset dds = (DoubleDataset) a;<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> final double doffset = dv;<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> while (it.hasNext()) {<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> final double x = dds.getAbs(it.index);<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> if (x < 0)<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> dds.setAbs(it.index, x + doffset);<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> }<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> break;<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> case Dataset.ARRAYINT8:<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> break;<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> case Dataset.ARRAYINT16:<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span> CompoundShortDataset csds = (CompoundShortDataset) a;<a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> final short csoffset = (short) dv;<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> final short[] csa = new short[isize];<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> while (it.hasNext()) {<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> csds.getAbs(it.index, csa);<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> boolean dirty = false;<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> for (int i = 0; i < isize; i++) {<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> short x = csa[i];<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> if (x < 0) {<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> csa[i] = (short) (x + csoffset);<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> dirty = true;<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> }<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> }<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> if (dirty)<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> csds.setAbs(it.index, csa);<a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> }<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> break;<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> case Dataset.ARRAYINT32:<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> CompoundIntegerDataset cids = (CompoundIntegerDataset) a;<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span> final int cioffset = (int) dv;<a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> final int[] cia = new int[isize];<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> while (it.hasNext()) {<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span> cids.getAbs(it.index, cia);<a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> boolean dirty = false;<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> for (int i = 0; i < isize; i++) {<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> int x = cia[i];<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> if (x < 0) {<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> cia[i] = x + cioffset;<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> dirty = true;<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> }<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> }<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> if (dirty)<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> cids.setAbs(it.index, cia);<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> }<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> break;<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> case Dataset.ARRAYINT64:<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> CompoundLongDataset clds = (CompoundLongDataset) a;<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> final long cloffset = (long) dv;<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> final long[] cla = new long[isize];<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> while (it.hasNext()) {<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> clds.getAbs(it.index, cla);<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> boolean dirty = false;<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> for (int i = 0; i < isize; i++) {<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> long x = cla[i];<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> if (x < 0) {<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> cla[i] = x + cloffset;<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span> dirty = true;<a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span> }<a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> }<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span> if (dirty)<a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> clds.setAbs(it.index, cla);<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> }<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> break;<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> default:<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> utilsLogger.error("Dataset of unsupported type for this method");<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> break;<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> }<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> }<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span><a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> /**<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> * @param clazz dataset class<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span> * @param rows<a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> * @param cols<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span> * @param offset<a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> * @param dtype<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> * @return a new 2d dataset of given shape and class, filled with ones on the (offset) diagonal<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> * @since 2.3<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> */<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> public static <T extends Dataset> T eye(final Class<T> clazz, final int rows, final int cols, final int offset) {<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> int[] shape = new int[] {rows, cols};<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> T a = DatasetFactory.zeros(clazz, shape);<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span><a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> int[] pos = new int[] {0, offset};<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> while (pos[1] < 0) {<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> pos[0]++;<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> pos[1]++;<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> }<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> while (pos[0] < rows && pos[1] < cols) {<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> a.set(1, pos);<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> pos[0]++;<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> pos[1]++;<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> return a;<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span> }<a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span><a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span> /**<a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> * @param rows<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span> * @param cols<a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> * @param offset<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span> * @param dtype<a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span> * @return a new 2d dataset of given shape and type, filled with ones on the (offset) diagonal<a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> * such as {@link #eye(Class, int, int, int)}<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span> */<a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> @Deprecated<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> public static Dataset eye(final int rows, final int cols, final int offset, final int dtype) {<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> int[] shape = new int[] {rows, cols};<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span> Dataset a = DatasetFactory.zeros(shape, dtype);<a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span><a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> int[] pos = new int[] {0, offset};<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span> while (pos[1] < 0) {<a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> pos[0]++;<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span> pos[1]++;<a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> }<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> while (pos[0] < rows && pos[1] < cols) {<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span> a.set(1, pos);<a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> pos[0]++;<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> pos[1]++;<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span> }<a name="line.1229"></a> |
| <span class="sourceLineNo">1230</span><a name="line.1230"></a> |
| <span class="sourceLineNo">1231</span> return a;<a name="line.1231"></a> |
| <span class="sourceLineNo">1232</span> }<a name="line.1232"></a> |
| <span class="sourceLineNo">1233</span><a name="line.1233"></a> |
| <span class="sourceLineNo">1234</span> /**<a name="line.1234"></a> |
| <span class="sourceLineNo">1235</span> * Create a (off-)diagonal matrix from items in dataset<a name="line.1235"></a> |
| <span class="sourceLineNo">1236</span> * @param a<a name="line.1236"></a> |
| <span class="sourceLineNo">1237</span> * @param offset<a name="line.1237"></a> |
| <span class="sourceLineNo">1238</span> * @return diagonal matrix<a name="line.1238"></a> |
| <span class="sourceLineNo">1239</span> */<a name="line.1239"></a> |
| <span class="sourceLineNo">1240</span> public static <T extends Dataset> T diag(final T a, final int offset) {<a name="line.1240"></a> |
| <span class="sourceLineNo">1241</span> final int rank = a.getRank();<a name="line.1241"></a> |
| <span class="sourceLineNo">1242</span> final int is = a.getElementsPerItem();<a name="line.1242"></a> |
| <span class="sourceLineNo">1243</span><a name="line.1243"></a> |
| <span class="sourceLineNo">1244</span> if (rank == 0 || rank > 2) {<a name="line.1244"></a> |
| <span class="sourceLineNo">1245</span> utilsLogger.error("Rank of dataset should be one or two");<a name="line.1245"></a> |
| <span class="sourceLineNo">1246</span> throw new IllegalArgumentException("Rank of dataset should be one or two");<a name="line.1246"></a> |
| <span class="sourceLineNo">1247</span> }<a name="line.1247"></a> |
| <span class="sourceLineNo">1248</span><a name="line.1248"></a> |
| <span class="sourceLineNo">1249</span> Dataset result;<a name="line.1249"></a> |
| <span class="sourceLineNo">1250</span> final int[] shape = a.getShapeRef();<a name="line.1250"></a> |
| <span class="sourceLineNo">1251</span> if (rank == 1) {<a name="line.1251"></a> |
| <span class="sourceLineNo">1252</span> int side = shape[0] + Math.abs(offset);<a name="line.1252"></a> |
| <span class="sourceLineNo">1253</span> int[] pos = new int[] {side, side};<a name="line.1253"></a> |
| <span class="sourceLineNo">1254</span> result = DatasetFactory.zeros(is, a.getClass(), pos);<a name="line.1254"></a> |
| <span class="sourceLineNo">1255</span> if (offset >= 0) {<a name="line.1255"></a> |
| <span class="sourceLineNo">1256</span> pos[0] = 0;<a name="line.1256"></a> |
| <span class="sourceLineNo">1257</span> pos[1] = offset;<a name="line.1257"></a> |
| <span class="sourceLineNo">1258</span> } else {<a name="line.1258"></a> |
| <span class="sourceLineNo">1259</span> pos[0] = -offset;<a name="line.1259"></a> |
| <span class="sourceLineNo">1260</span> pos[1] = 0;<a name="line.1260"></a> |
| <span class="sourceLineNo">1261</span> }<a name="line.1261"></a> |
| <span class="sourceLineNo">1262</span> int i = 0;<a name="line.1262"></a> |
| <span class="sourceLineNo">1263</span> while (pos[0] < side && pos[1] < side) {<a name="line.1263"></a> |
| <span class="sourceLineNo">1264</span> result.set(a.getObject(i++), pos);<a name="line.1264"></a> |
| <span class="sourceLineNo">1265</span> pos[0]++;<a name="line.1265"></a> |
| <span class="sourceLineNo">1266</span> pos[1]++;<a name="line.1266"></a> |
| <span class="sourceLineNo">1267</span> }<a name="line.1267"></a> |
| <span class="sourceLineNo">1268</span> } else {<a name="line.1268"></a> |
| <span class="sourceLineNo">1269</span> int side = offset >= 0 ? Math.min(shape[0], shape[1]-offset) : Math.min(shape[0]+offset, shape[1]);<a name="line.1269"></a> |
| <span class="sourceLineNo">1270</span> if (side < 0)<a name="line.1270"></a> |
| <span class="sourceLineNo">1271</span> side = 0;<a name="line.1271"></a> |
| <span class="sourceLineNo">1272</span> result = DatasetFactory.zeros(is, a.getClass(), side);<a name="line.1272"></a> |
| <span class="sourceLineNo">1273</span><a name="line.1273"></a> |
| <span class="sourceLineNo">1274</span> if (side > 0) {<a name="line.1274"></a> |
| <span class="sourceLineNo">1275</span> int[] pos = offset >= 0 ? new int[] { 0, offset } : new int[] { -offset, 0 };<a name="line.1275"></a> |
| <span class="sourceLineNo">1276</span> int i = 0;<a name="line.1276"></a> |
| <span class="sourceLineNo">1277</span> while (pos[0] < shape[0] && pos[1] < shape[1]) {<a name="line.1277"></a> |
| <span class="sourceLineNo">1278</span> result.set(a.getObject(pos), i++);<a name="line.1278"></a> |
| <span class="sourceLineNo">1279</span> pos[0]++;<a name="line.1279"></a> |
| <span class="sourceLineNo">1280</span> pos[1]++;<a name="line.1280"></a> |
| <span class="sourceLineNo">1281</span> }<a name="line.1281"></a> |
| <span class="sourceLineNo">1282</span> }<a name="line.1282"></a> |
| <span class="sourceLineNo">1283</span> }<a name="line.1283"></a> |
| <span class="sourceLineNo">1284</span><a name="line.1284"></a> |
| <span class="sourceLineNo">1285</span> return (T) result;<a name="line.1285"></a> |
| <span class="sourceLineNo">1286</span> }<a name="line.1286"></a> |
| <span class="sourceLineNo">1287</span><a name="line.1287"></a> |
| <span class="sourceLineNo">1288</span> /**<a name="line.1288"></a> |
| <span class="sourceLineNo">1289</span> * Slice (or fully load), if necessary, a lazy dataset, otherwise take a slice view and<a name="line.1289"></a> |
| <span class="sourceLineNo">1290</span> * convert to our dataset implementation. If a slice is necessary, this may cause resource<a name="line.1290"></a> |
| <span class="sourceLineNo">1291</span> * problems when used on large datasets and throw runtime exceptions<a name="line.1291"></a> |
| <span class="sourceLineNo">1292</span> * @param lazy can be null<a name="line.1292"></a> |
| <span class="sourceLineNo">1293</span> * @return Converted dataset or null<a name="line.1293"></a> |
| <span class="sourceLineNo">1294</span> * @throws DatasetException<a name="line.1294"></a> |
| <span class="sourceLineNo">1295</span> */<a name="line.1295"></a> |
| <span class="sourceLineNo">1296</span> public static Dataset sliceAndConvertLazyDataset(ILazyDataset lazy) throws DatasetException {<a name="line.1296"></a> |
| <span class="sourceLineNo">1297</span> if (lazy == null)<a name="line.1297"></a> |
| <span class="sourceLineNo">1298</span> return null;<a name="line.1298"></a> |
| <span class="sourceLineNo">1299</span><a name="line.1299"></a> |
| <span class="sourceLineNo">1300</span> IDataset data = lazy instanceof IDataset ? (IDataset) lazy.getSliceView() : lazy.getSlice();<a name="line.1300"></a> |
| <span class="sourceLineNo">1301</span><a name="line.1301"></a> |
| <span class="sourceLineNo">1302</span> return convertToDataset(data);<a name="line.1302"></a> |
| <span class="sourceLineNo">1303</span> }<a name="line.1303"></a> |
| <span class="sourceLineNo">1304</span><a name="line.1304"></a> |
| <span class="sourceLineNo">1305</span> /**<a name="line.1305"></a> |
| <span class="sourceLineNo">1306</span> * Convert (if necessary) a dataset obeying the interface to our implementation<a name="line.1306"></a> |
| <span class="sourceLineNo">1307</span> * @param data can be null<a name="line.1307"></a> |
| <span class="sourceLineNo">1308</span> * @return Converted dataset or null<a name="line.1308"></a> |
| <span class="sourceLineNo">1309</span> */<a name="line.1309"></a> |
| <span class="sourceLineNo">1310</span> public static Dataset convertToDataset(IDataset data) {<a name="line.1310"></a> |
| <span class="sourceLineNo">1311</span> if (data == null)<a name="line.1311"></a> |
| <span class="sourceLineNo">1312</span> return null;<a name="line.1312"></a> |
| <span class="sourceLineNo">1313</span><a name="line.1313"></a> |
| <span class="sourceLineNo">1314</span> if (data instanceof Dataset) {<a name="line.1314"></a> |
| <span class="sourceLineNo">1315</span> return (Dataset) data;<a name="line.1315"></a> |
| <span class="sourceLineNo">1316</span> }<a name="line.1316"></a> |
| <span class="sourceLineNo">1317</span><a name="line.1317"></a> |
| <span class="sourceLineNo">1318</span> final int isize = data.getElementsPerItem();<a name="line.1318"></a> |
| <span class="sourceLineNo">1319</span> Class<? extends Dataset> clazz = InterfaceUtils.getInterfaceFromClass(isize, data.getElementClass());<a name="line.1319"></a> |
| <span class="sourceLineNo">1320</span> if (isize <= 0) {<a name="line.1320"></a> |
| <span class="sourceLineNo">1321</span> throw new IllegalArgumentException("Datasets with " + isize + " elements per item not supported");<a name="line.1321"></a> |
| <span class="sourceLineNo">1322</span> }<a name="line.1322"></a> |
| <span class="sourceLineNo">1323</span><a name="line.1323"></a> |
| <span class="sourceLineNo">1324</span> final Dataset result = DatasetFactory.zeros(isize, clazz, data.getShape());<a name="line.1324"></a> |
| <span class="sourceLineNo">1325</span> result.setName(data.getName());<a name="line.1325"></a> |
| <span class="sourceLineNo">1326</span><a name="line.1326"></a> |
| <span class="sourceLineNo">1327</span> final IndexIterator it = result.getIterator(true);<a name="line.1327"></a> |
| <span class="sourceLineNo">1328</span> final int[] pos = it.getPos();<a name="line.1328"></a> |
| <span class="sourceLineNo">1329</span> switch (DTypeUtils.getDType(clazz)) {<a name="line.1329"></a> |
| <span class="sourceLineNo">1330</span> case Dataset.BOOL:<a name="line.1330"></a> |
| <span class="sourceLineNo">1331</span> while (it.hasNext()) {<a name="line.1331"></a> |
| <span class="sourceLineNo">1332</span> result.setObjectAbs(it.index, data.getBoolean(pos));<a name="line.1332"></a> |
| <span class="sourceLineNo">1333</span> }<a name="line.1333"></a> |
| <span class="sourceLineNo">1334</span> break;<a name="line.1334"></a> |
| <span class="sourceLineNo">1335</span> case Dataset.INT8:<a name="line.1335"></a> |
| <span class="sourceLineNo">1336</span> while (it.hasNext()) {<a name="line.1336"></a> |
| <span class="sourceLineNo">1337</span> result.setObjectAbs(it.index, data.getByte(pos));<a name="line.1337"></a> |
| <span class="sourceLineNo">1338</span> }<a name="line.1338"></a> |
| <span class="sourceLineNo">1339</span> break;<a name="line.1339"></a> |
| <span class="sourceLineNo">1340</span> case Dataset.INT16:<a name="line.1340"></a> |
| <span class="sourceLineNo">1341</span> while (it.hasNext()) {<a name="line.1341"></a> |
| <span class="sourceLineNo">1342</span> result.setObjectAbs(it.index, data.getShort(pos));<a name="line.1342"></a> |
| <span class="sourceLineNo">1343</span> }<a name="line.1343"></a> |
| <span class="sourceLineNo">1344</span> break;<a name="line.1344"></a> |
| <span class="sourceLineNo">1345</span> case Dataset.INT32:<a name="line.1345"></a> |
| <span class="sourceLineNo">1346</span> while (it.hasNext()) {<a name="line.1346"></a> |
| <span class="sourceLineNo">1347</span> result.setObjectAbs(it.index, data.getInt(pos));<a name="line.1347"></a> |
| <span class="sourceLineNo">1348</span> }<a name="line.1348"></a> |
| <span class="sourceLineNo">1349</span> break;<a name="line.1349"></a> |
| <span class="sourceLineNo">1350</span> case Dataset.INT64:<a name="line.1350"></a> |
| <span class="sourceLineNo">1351</span> while (it.hasNext()) {<a name="line.1351"></a> |
| <span class="sourceLineNo">1352</span> result.setObjectAbs(it.index, data.getLong(pos));<a name="line.1352"></a> |
| <span class="sourceLineNo">1353</span> }<a name="line.1353"></a> |
| <span class="sourceLineNo">1354</span> break;<a name="line.1354"></a> |
| <span class="sourceLineNo">1355</span> case Dataset.FLOAT32:<a name="line.1355"></a> |
| <span class="sourceLineNo">1356</span> while (it.hasNext()) {<a name="line.1356"></a> |
| <span class="sourceLineNo">1357</span> result.setObjectAbs(it.index, data.getFloat(pos));<a name="line.1357"></a> |
| <span class="sourceLineNo">1358</span> }<a name="line.1358"></a> |
| <span class="sourceLineNo">1359</span> break;<a name="line.1359"></a> |
| <span class="sourceLineNo">1360</span> case Dataset.FLOAT64:<a name="line.1360"></a> |
| <span class="sourceLineNo">1361</span> while (it.hasNext()) {<a name="line.1361"></a> |
| <span class="sourceLineNo">1362</span> result.setObjectAbs(it.index, data.getDouble(pos));<a name="line.1362"></a> |
| <span class="sourceLineNo">1363</span> }<a name="line.1363"></a> |
| <span class="sourceLineNo">1364</span> break;<a name="line.1364"></a> |
| <span class="sourceLineNo">1365</span> default:<a name="line.1365"></a> |
| <span class="sourceLineNo">1366</span> while (it.hasNext()) {<a name="line.1366"></a> |
| <span class="sourceLineNo">1367</span> result.setObjectAbs(it.index, data.getObject(pos));<a name="line.1367"></a> |
| <span class="sourceLineNo">1368</span> }<a name="line.1368"></a> |
| <span class="sourceLineNo">1369</span> break;<a name="line.1369"></a> |
| <span class="sourceLineNo">1370</span> }<a name="line.1370"></a> |
| <span class="sourceLineNo">1371</span><a name="line.1371"></a> |
| <span class="sourceLineNo">1372</span> result.setErrors(data.getErrors());<a name="line.1372"></a> |
| <span class="sourceLineNo">1373</span> return result;<a name="line.1373"></a> |
| <span class="sourceLineNo">1374</span> }<a name="line.1374"></a> |
| <span class="sourceLineNo">1375</span><a name="line.1375"></a> |
| <span class="sourceLineNo">1376</span> /**<a name="line.1376"></a> |
| <span class="sourceLineNo">1377</span> * Create a compound dataset from given datasets<a name="line.1377"></a> |
| <span class="sourceLineNo">1378</span> * @param datasets<a name="line.1378"></a> |
| <span class="sourceLineNo">1379</span> * @return compound dataset or null if none given<a name="line.1379"></a> |
| <span class="sourceLineNo">1380</span> */<a name="line.1380"></a> |
| <span class="sourceLineNo">1381</span> public static CompoundDataset createCompoundDataset(final Dataset... datasets) {<a name="line.1381"></a> |
| <span class="sourceLineNo">1382</span> if (datasets == null || datasets.length == 0)<a name="line.1382"></a> |
| <span class="sourceLineNo">1383</span> return null;<a name="line.1383"></a> |
| <span class="sourceLineNo">1384</span><a name="line.1384"></a> |
| <span class="sourceLineNo">1385</span> return createCompoundDataset(datasets[0].getDType(), datasets);<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> /**<a name="line.1388"></a> |
| <span class="sourceLineNo">1389</span> * Create a compound dataset from given datasets<a name="line.1389"></a> |
| <span class="sourceLineNo">1390</span> * @param clazz dataset class<a name="line.1390"></a> |
| <span class="sourceLineNo">1391</span> * @param datasets<a name="line.1391"></a> |
| <span class="sourceLineNo">1392</span> * @return compound dataset or null if none given<a name="line.1392"></a> |
| <span class="sourceLineNo">1393</span> */<a name="line.1393"></a> |
| <span class="sourceLineNo">1394</span> public static <T extends CompoundDataset> T createCompoundDataset(Class<T> clazz, final Dataset... datasets) {<a name="line.1394"></a> |
| <span class="sourceLineNo">1395</span> return (T) createCompoundDataset(DTypeUtils.getDType(clazz), datasets);<a name="line.1395"></a> |
| <span class="sourceLineNo">1396</span> }<a name="line.1396"></a> |
| <span class="sourceLineNo">1397</span><a name="line.1397"></a> |
| <span class="sourceLineNo">1398</span> /**<a name="line.1398"></a> |
| <span class="sourceLineNo">1399</span> * Create a compound dataset from given datasets<a name="line.1399"></a> |
| <span class="sourceLineNo">1400</span> * @param dtype<a name="line.1400"></a> |
| <span class="sourceLineNo">1401</span> * @param datasets<a name="line.1401"></a> |
| <span class="sourceLineNo">1402</span> * @return compound dataset or null if none given<a name="line.1402"></a> |
| <span class="sourceLineNo">1403</span> * @deprecated Please use the class-based methods in DatasetUtils,<a name="line.1403"></a> |
| <span class="sourceLineNo">1404</span> * such as {@link #createCompoundDataset(Class, Dataset...)}<a name="line.1404"></a> |
| <span class="sourceLineNo">1405</span> */<a name="line.1405"></a> |
| <span class="sourceLineNo">1406</span> @Deprecated<a name="line.1406"></a> |
| <span class="sourceLineNo">1407</span> public static CompoundDataset createCompoundDataset(final int dtype, final Dataset... datasets) {<a name="line.1407"></a> |
| <span class="sourceLineNo">1408</span> if (datasets == null || datasets.length == 0)<a name="line.1408"></a> |
| <span class="sourceLineNo">1409</span> return null;<a name="line.1409"></a> |
| <span class="sourceLineNo">1410</span><a name="line.1410"></a> |
| <span class="sourceLineNo">1411</span> switch (dtype) {<a name="line.1411"></a> |
| <span class="sourceLineNo">1412</span> case Dataset.INT8:<a name="line.1412"></a> |
| <span class="sourceLineNo">1413</span> case Dataset.ARRAYINT8:<a name="line.1413"></a> |
| <span class="sourceLineNo">1414</span> return new CompoundByteDataset(datasets);<a name="line.1414"></a> |
| <span class="sourceLineNo">1415</span> case Dataset.INT16:<a name="line.1415"></a> |
| <span class="sourceLineNo">1416</span> case Dataset.ARRAYINT16:<a name="line.1416"></a> |
| <span class="sourceLineNo">1417</span> return new CompoundShortDataset(datasets);<a name="line.1417"></a> |
| <span class="sourceLineNo">1418</span> case Dataset.INT32:<a name="line.1418"></a> |
| <span class="sourceLineNo">1419</span> case Dataset.ARRAYINT32:<a name="line.1419"></a> |
| <span class="sourceLineNo">1420</span> return new CompoundIntegerDataset(datasets);<a name="line.1420"></a> |
| <span class="sourceLineNo">1421</span> case Dataset.INT64:<a name="line.1421"></a> |
| <span class="sourceLineNo">1422</span> case Dataset.ARRAYINT64:<a name="line.1422"></a> |
| <span class="sourceLineNo">1423</span> return new CompoundLongDataset(datasets);<a name="line.1423"></a> |
| <span class="sourceLineNo">1424</span> case Dataset.FLOAT32:<a name="line.1424"></a> |
| <span class="sourceLineNo">1425</span> case Dataset.ARRAYFLOAT32:<a name="line.1425"></a> |
| <span class="sourceLineNo">1426</span> return new CompoundFloatDataset(datasets);<a name="line.1426"></a> |
| <span class="sourceLineNo">1427</span> case Dataset.FLOAT64:<a name="line.1427"></a> |
| <span class="sourceLineNo">1428</span> case Dataset.ARRAYFLOAT64:<a name="line.1428"></a> |
| <span class="sourceLineNo">1429</span> return new CompoundDoubleDataset(datasets);<a name="line.1429"></a> |
| <span class="sourceLineNo">1430</span> case Dataset.COMPLEX64:<a name="line.1430"></a> |
| <span class="sourceLineNo">1431</span> case Dataset.COMPLEX128:<a name="line.1431"></a> |
| <span class="sourceLineNo">1432</span> if (datasets.length > 2) {<a name="line.1432"></a> |
| <span class="sourceLineNo">1433</span> utilsLogger.error("At most two datasets are allowed");<a name="line.1433"></a> |
| <span class="sourceLineNo">1434</span> throw new IllegalArgumentException("At most two datasets are allowed");<a name="line.1434"></a> |
| <span class="sourceLineNo">1435</span> } else if (datasets.length == 2) {<a name="line.1435"></a> |
| <span class="sourceLineNo">1436</span> return dtype == Dataset.COMPLEX64 ? new ComplexFloatDataset(datasets[0], datasets[1]) : new ComplexDoubleDataset(datasets[0], datasets[1]);<a name="line.1436"></a> |
| <span class="sourceLineNo">1437</span> }<a name="line.1437"></a> |
| <span class="sourceLineNo">1438</span> return dtype == Dataset.COMPLEX64 ? new ComplexFloatDataset(datasets[0]) : new ComplexDoubleDataset(datasets[0]);<a name="line.1438"></a> |
| <span class="sourceLineNo">1439</span> case Dataset.RGB:<a name="line.1439"></a> |
| <span class="sourceLineNo">1440</span> if (datasets.length == 1) {<a name="line.1440"></a> |
| <span class="sourceLineNo">1441</span> return new RGBDataset(datasets[0]);<a name="line.1441"></a> |
| <span class="sourceLineNo">1442</span> } else if (datasets.length == 3) {<a name="line.1442"></a> |
| <span class="sourceLineNo">1443</span> return new RGBDataset(datasets[0], datasets[1], datasets[2]);<a name="line.1443"></a> |
| <span class="sourceLineNo">1444</span> } else {<a name="line.1444"></a> |
| <span class="sourceLineNo">1445</span> utilsLogger.error("Only one or three datasets are allowed to create a RGB dataset");<a name="line.1445"></a> |
| <span class="sourceLineNo">1446</span> throw new IllegalArgumentException("Only one or three datasets are allowed to create a RGB dataset");<a name="line.1446"></a> |
| <span class="sourceLineNo">1447</span> }<a name="line.1447"></a> |
| <span class="sourceLineNo">1448</span> default:<a name="line.1448"></a> |
| <span class="sourceLineNo">1449</span> utilsLogger.error("Dataset type not supported for this operation");<a name="line.1449"></a> |
| <span class="sourceLineNo">1450</span> throw new UnsupportedOperationException("Dataset type not supported");<a name="line.1450"></a> |
| <span class="sourceLineNo">1451</span> }<a name="line.1451"></a> |
| <span class="sourceLineNo">1452</span> }<a name="line.1452"></a> |
| <span class="sourceLineNo">1453</span><a name="line.1453"></a> |
| <span class="sourceLineNo">1454</span> /**<a name="line.1454"></a> |
| <span class="sourceLineNo">1455</span> * Create a compound dataset from given dataset<a name="line.1455"></a> |
| <span class="sourceLineNo">1456</span> * @param dataset<a name="line.1456"></a> |
| <span class="sourceLineNo">1457</span> * @param itemSize<a name="line.1457"></a> |
| <span class="sourceLineNo">1458</span> * @return compound dataset<a name="line.1458"></a> |
| <span class="sourceLineNo">1459</span> */<a name="line.1459"></a> |
| <span class="sourceLineNo">1460</span> public static CompoundDataset createCompoundDataset(final Dataset dataset, final int itemSize) {<a name="line.1460"></a> |
| <span class="sourceLineNo">1461</span> int[] shape = dataset.getShapeRef();<a name="line.1461"></a> |
| <span class="sourceLineNo">1462</span> int[] nshape = shape;<a name="line.1462"></a> |
| <span class="sourceLineNo">1463</span> if (shape != null && itemSize > 1) {<a name="line.1463"></a> |
| <span class="sourceLineNo">1464</span> int size = ShapeUtils.calcSize(shape);<a name="line.1464"></a> |
| <span class="sourceLineNo">1465</span> if (size % itemSize != 0) {<a name="line.1465"></a> |
| <span class="sourceLineNo">1466</span> throw new IllegalArgumentException("Input dataset has number of items that is not a multiple of itemSize");<a name="line.1466"></a> |
| <span class="sourceLineNo">1467</span> }<a name="line.1467"></a> |
| <span class="sourceLineNo">1468</span> int d = shape.length;<a name="line.1468"></a> |
| <span class="sourceLineNo">1469</span> int l = 1;<a name="line.1469"></a> |
| <span class="sourceLineNo">1470</span> while (--d >= 0) {<a name="line.1470"></a> |
| <span class="sourceLineNo">1471</span> l *= shape[d];<a name="line.1471"></a> |
| <span class="sourceLineNo">1472</span> if (l % itemSize == 0) {<a name="line.1472"></a> |
| <span class="sourceLineNo">1473</span> break;<a name="line.1473"></a> |
| <span class="sourceLineNo">1474</span> }<a name="line.1474"></a> |
| <span class="sourceLineNo">1475</span> }<a name="line.1475"></a> |
| <span class="sourceLineNo">1476</span> assert d >= 0;<a name="line.1476"></a> |
| <span class="sourceLineNo">1477</span> nshape = new int[d + 1];<a name="line.1477"></a> |
| <span class="sourceLineNo">1478</span> for (int i = 0; i < d; i++) {<a name="line.1478"></a> |
| <span class="sourceLineNo">1479</span> nshape[i] = shape[i];<a name="line.1479"></a> |
| <span class="sourceLineNo">1480</span> }<a name="line.1480"></a> |
| <span class="sourceLineNo">1481</span> nshape[d] = l / itemSize;<a name="line.1481"></a> |
| <span class="sourceLineNo">1482</span> }<a name="line.1482"></a> |
| <span class="sourceLineNo">1483</span> switch (dataset.getDType()) {<a name="line.1483"></a> |
| <span class="sourceLineNo">1484</span> case Dataset.INT8:<a name="line.1484"></a> |
| <span class="sourceLineNo">1485</span> return new CompoundByteDataset(itemSize, (byte[]) dataset.getBuffer(), nshape);<a name="line.1485"></a> |
| <span class="sourceLineNo">1486</span> case Dataset.INT16:<a name="line.1486"></a> |
| <span class="sourceLineNo">1487</span> return new CompoundShortDataset(itemSize, (short[]) dataset.getBuffer(), nshape);<a name="line.1487"></a> |
| <span class="sourceLineNo">1488</span> case Dataset.INT32:<a name="line.1488"></a> |
| <span class="sourceLineNo">1489</span> return new CompoundIntegerDataset(itemSize, (int[]) dataset.getBuffer(), nshape);<a name="line.1489"></a> |
| <span class="sourceLineNo">1490</span> case Dataset.INT64:<a name="line.1490"></a> |
| <span class="sourceLineNo">1491</span> return new CompoundLongDataset(itemSize, (long[]) dataset.getBuffer(), nshape);<a name="line.1491"></a> |
| <span class="sourceLineNo">1492</span> case Dataset.FLOAT32:<a name="line.1492"></a> |
| <span class="sourceLineNo">1493</span> return new CompoundFloatDataset(itemSize, (float[]) dataset.getBuffer(), nshape);<a name="line.1493"></a> |
| <span class="sourceLineNo">1494</span> case Dataset.FLOAT64:<a name="line.1494"></a> |
| <span class="sourceLineNo">1495</span> return new CompoundDoubleDataset(itemSize, (double[]) dataset.getBuffer(), nshape);<a name="line.1495"></a> |
| <span class="sourceLineNo">1496</span> default:<a name="line.1496"></a> |
| <span class="sourceLineNo">1497</span> utilsLogger.error("Dataset type not supported for this operation");<a name="line.1497"></a> |
| <span class="sourceLineNo">1498</span> throw new UnsupportedOperationException("Dataset type not supported");<a name="line.1498"></a> |
| <span class="sourceLineNo">1499</span> }<a name="line.1499"></a> |
| <span class="sourceLineNo">1500</span> }<a name="line.1500"></a> |
| <span class="sourceLineNo">1501</span><a name="line.1501"></a> |
| <span class="sourceLineNo">1502</span><a name="line.1502"></a> |
| <span class="sourceLineNo">1503</span> /**<a name="line.1503"></a> |
| <span class="sourceLineNo">1504</span> * Create a compound dataset by using last axis as elements of an item<a name="line.1504"></a> |
| <span class="sourceLineNo">1505</span> * @param a<a name="line.1505"></a> |
| <span class="sourceLineNo">1506</span> * @param shareData if true, then share data<a name="line.1506"></a> |
| <span class="sourceLineNo">1507</span> * @return compound dataset<a name="line.1507"></a> |
| <span class="sourceLineNo">1508</span> */<a name="line.1508"></a> |
| <span class="sourceLineNo">1509</span> public static CompoundDataset createCompoundDatasetFromLastAxis(final Dataset a, final boolean shareData) {<a name="line.1509"></a> |
| <span class="sourceLineNo">1510</span> switch (a.getDType()) {<a name="line.1510"></a> |
| <span class="sourceLineNo">1511</span> case Dataset.INT8:<a name="line.1511"></a> |
| <span class="sourceLineNo">1512</span> return CompoundByteDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1512"></a> |
| <span class="sourceLineNo">1513</span> case Dataset.INT16:<a name="line.1513"></a> |
| <span class="sourceLineNo">1514</span> return CompoundShortDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1514"></a> |
| <span class="sourceLineNo">1515</span> case Dataset.INT32:<a name="line.1515"></a> |
| <span class="sourceLineNo">1516</span> return CompoundIntegerDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1516"></a> |
| <span class="sourceLineNo">1517</span> case Dataset.INT64:<a name="line.1517"></a> |
| <span class="sourceLineNo">1518</span> return CompoundLongDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1518"></a> |
| <span class="sourceLineNo">1519</span> case Dataset.FLOAT32:<a name="line.1519"></a> |
| <span class="sourceLineNo">1520</span> return CompoundFloatDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1520"></a> |
| <span class="sourceLineNo">1521</span> case Dataset.FLOAT64:<a name="line.1521"></a> |
| <span class="sourceLineNo">1522</span> return CompoundDoubleDataset.createCompoundDatasetWithLastDimension(a, shareData);<a name="line.1522"></a> |
| <span class="sourceLineNo">1523</span> default:<a name="line.1523"></a> |
| <span class="sourceLineNo">1524</span> utilsLogger.error("Dataset type not supported for this operation");<a name="line.1524"></a> |
| <span class="sourceLineNo">1525</span> throw new UnsupportedOperationException("Dataset type not supported");<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><a name="line.1528"></a> |
| <span class="sourceLineNo">1529</span> /**<a name="line.1529"></a> |
| <span class="sourceLineNo">1530</span> * Create a dataset from a compound dataset by using elements of an item as last axis<a name="line.1530"></a> |
| <span class="sourceLineNo">1531</span> * <p><a name="line.1531"></a> |
| <span class="sourceLineNo">1532</span> * In the case where the number of elements is one, the last axis is squeezed out.<a name="line.1532"></a> |
| <span class="sourceLineNo">1533</span> * @param a<a name="line.1533"></a> |
| <span class="sourceLineNo">1534</span> * @param shareData if true, then share data<a name="line.1534"></a> |
| <span class="sourceLineNo">1535</span> * @return non-compound dataset<a name="line.1535"></a> |
| <span class="sourceLineNo">1536</span> */<a name="line.1536"></a> |
| <span class="sourceLineNo">1537</span> public static Dataset createDatasetFromCompoundDataset(final CompoundDataset a, final boolean shareData) {<a name="line.1537"></a> |
| <span class="sourceLineNo">1538</span> return a.asNonCompoundDataset(shareData);<a name="line.1538"></a> |
| <span class="sourceLineNo">1539</span> }<a name="line.1539"></a> |
| <span class="sourceLineNo">1540</span><a name="line.1540"></a> |
| <span class="sourceLineNo">1541</span> /**<a name="line.1541"></a> |
| <span class="sourceLineNo">1542</span> * Create a copy that has been coerced to an appropriate dataset type<a name="line.1542"></a> |
| <span class="sourceLineNo">1543</span> * depending on the input object's class<a name="line.1543"></a> |
| <span class="sourceLineNo">1544</span> *<a name="line.1544"></a> |
| <span class="sourceLineNo">1545</span> * @param a<a name="line.1545"></a> |
| <span class="sourceLineNo">1546</span> * @param obj<a name="line.1546"></a> |
| <span class="sourceLineNo">1547</span> * @return coerced copy of dataset<a name="line.1547"></a> |
| <span class="sourceLineNo">1548</span> */<a name="line.1548"></a> |
| <span class="sourceLineNo">1549</span> public static Dataset coerce(Dataset a, Object obj) {<a name="line.1549"></a> |
| <span class="sourceLineNo">1550</span> return cast(InterfaceUtils.getBestInterface(a.getClass(), InterfaceUtils.getInterface(obj)), a.clone());<a name="line.1550"></a> |
| <span class="sourceLineNo">1551</span> }<a name="line.1551"></a> |
| <span class="sourceLineNo">1552</span><a name="line.1552"></a> |
| <span class="sourceLineNo">1553</span> /**<a name="line.1553"></a> |
| <span class="sourceLineNo">1554</span> * Function that returns a normalised dataset which is bounded between 0 and 1<a name="line.1554"></a> |
| <span class="sourceLineNo">1555</span> * @param a dataset<a name="line.1555"></a> |
| <span class="sourceLineNo">1556</span> * @return normalised dataset<a name="line.1556"></a> |
| <span class="sourceLineNo">1557</span> */<a name="line.1557"></a> |
| <span class="sourceLineNo">1558</span> public static Dataset norm(Dataset a) {<a name="line.1558"></a> |
| <span class="sourceLineNo">1559</span> double amin = a.min().doubleValue();<a name="line.1559"></a> |
| <span class="sourceLineNo">1560</span> double aptp = a.max().doubleValue() - amin;<a name="line.1560"></a> |
| <span class="sourceLineNo">1561</span> Dataset temp = Maths.subtract(a, amin);<a name="line.1561"></a> |
| <span class="sourceLineNo">1562</span> temp.idivide(aptp);<a name="line.1562"></a> |
| <span class="sourceLineNo">1563</span> return temp;<a name="line.1563"></a> |
| <span class="sourceLineNo">1564</span> }<a name="line.1564"></a> |
| <span class="sourceLineNo">1565</span><a name="line.1565"></a> |
| <span class="sourceLineNo">1566</span> /**<a name="line.1566"></a> |
| <span class="sourceLineNo">1567</span> * Function that returns a normalised compound dataset which is bounded between 0 and 1. There<a name="line.1567"></a> |
| <span class="sourceLineNo">1568</span> * are (at least) two ways to normalise a compound dataset: per element - extrema for each element<a name="line.1568"></a> |
| <span class="sourceLineNo">1569</span> * in a compound item is used, i.e. many min/max pairs; over all elements - extrema for all elements<a name="line.1569"></a> |
| <span class="sourceLineNo">1570</span> * is used, i.e. one min/max pair.<a name="line.1570"></a> |
| <span class="sourceLineNo">1571</span> * @param a dataset<a name="line.1571"></a> |
| <span class="sourceLineNo">1572</span> * @param overAllElements if true, then normalise over all elements in each item<a name="line.1572"></a> |
| <span class="sourceLineNo">1573</span> * @return normalised dataset<a name="line.1573"></a> |
| <span class="sourceLineNo">1574</span> */<a name="line.1574"></a> |
| <span class="sourceLineNo">1575</span> public static CompoundDataset norm(CompoundDataset a, boolean overAllElements) {<a name="line.1575"></a> |
| <span class="sourceLineNo">1576</span> double[] amin = a.minItem();<a name="line.1576"></a> |
| <span class="sourceLineNo">1577</span> double[] amax = a.maxItem();<a name="line.1577"></a> |
| <span class="sourceLineNo">1578</span> final int is = a.getElementsPerItem();<a name="line.1578"></a> |
| <span class="sourceLineNo">1579</span> Dataset result;<a name="line.1579"></a> |
| <span class="sourceLineNo">1580</span><a name="line.1580"></a> |
| <span class="sourceLineNo">1581</span> if (overAllElements) {<a name="line.1581"></a> |
| <span class="sourceLineNo">1582</span> Arrays.sort(amin);<a name="line.1582"></a> |
| <span class="sourceLineNo">1583</span> Arrays.sort(amax);<a name="line.1583"></a> |
| <span class="sourceLineNo">1584</span> double aptp = amax[0] - amin[0];<a name="line.1584"></a> |
| <span class="sourceLineNo">1585</span><a name="line.1585"></a> |
| <span class="sourceLineNo">1586</span> result = Maths.subtract(a, amin[0]);<a name="line.1586"></a> |
| <span class="sourceLineNo">1587</span> result.idivide(aptp);<a name="line.1587"></a> |
| <span class="sourceLineNo">1588</span> } else {<a name="line.1588"></a> |
| <span class="sourceLineNo">1589</span> double[] aptp = new double[is];<a name="line.1589"></a> |
| <span class="sourceLineNo">1590</span> for (int j = 0; j < is; j++) {<a name="line.1590"></a> |
| <span class="sourceLineNo">1591</span> aptp[j] = amax[j] - amin[j];<a name="line.1591"></a> |
| <span class="sourceLineNo">1592</span> }<a name="line.1592"></a> |
| <span class="sourceLineNo">1593</span><a name="line.1593"></a> |
| <span class="sourceLineNo">1594</span> result = Maths.subtract(a, amin);<a name="line.1594"></a> |
| <span class="sourceLineNo">1595</span> result.idivide(aptp);<a name="line.1595"></a> |
| <span class="sourceLineNo">1596</span> }<a name="line.1596"></a> |
| <span class="sourceLineNo">1597</span> return (CompoundDataset) result;<a name="line.1597"></a> |
| <span class="sourceLineNo">1598</span> }<a name="line.1598"></a> |
| <span class="sourceLineNo">1599</span><a name="line.1599"></a> |
| <span class="sourceLineNo">1600</span> /**<a name="line.1600"></a> |
| <span class="sourceLineNo">1601</span> * Function that returns a normalised dataset which is bounded between 0 and 1<a name="line.1601"></a> |
| <span class="sourceLineNo">1602</span> * and has been distributed on a log10 scale<a name="line.1602"></a> |
| <span class="sourceLineNo">1603</span> * @param a dataset<a name="line.1603"></a> |
| <span class="sourceLineNo">1604</span> * @return normalised dataset<a name="line.1604"></a> |
| <span class="sourceLineNo">1605</span> */<a name="line.1605"></a> |
| <span class="sourceLineNo">1606</span> public static Dataset lognorm(Dataset a) {<a name="line.1606"></a> |
| <span class="sourceLineNo">1607</span> double amin = a.min().doubleValue();<a name="line.1607"></a> |
| <span class="sourceLineNo">1608</span> double aptp = Math.log10(a.max().doubleValue() - amin + 1.);<a name="line.1608"></a> |
| <span class="sourceLineNo">1609</span> Dataset temp = Maths.subtract(a, amin - 1.);<a name="line.1609"></a> |
| <span class="sourceLineNo">1610</span> temp = Maths.log10(temp);<a name="line.1610"></a> |
| <span class="sourceLineNo">1611</span> temp = Maths.divide(temp, aptp);<a name="line.1611"></a> |
| <span class="sourceLineNo">1612</span> return temp;<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> /**<a name="line.1615"></a> |
| <span class="sourceLineNo">1616</span> * Function that returns a normalised dataset which is bounded between 0 and 1<a name="line.1616"></a> |
| <span class="sourceLineNo">1617</span> * and has been distributed on a natural log scale<a name="line.1617"></a> |
| <span class="sourceLineNo">1618</span> * @param a dataset<a name="line.1618"></a> |
| <span class="sourceLineNo">1619</span> * @return normalised dataset<a name="line.1619"></a> |
| <span class="sourceLineNo">1620</span> */<a name="line.1620"></a> |
| <span class="sourceLineNo">1621</span> public static Dataset lnnorm(Dataset a) {<a name="line.1621"></a> |
| <span class="sourceLineNo">1622</span> double amin = a.min().doubleValue();<a name="line.1622"></a> |
| <span class="sourceLineNo">1623</span> double aptp = Math.log(a.max().doubleValue() - amin + 1.);<a name="line.1623"></a> |
| <span class="sourceLineNo">1624</span> Dataset temp = Maths.subtract(a, amin - 1.);<a name="line.1624"></a> |
| <span class="sourceLineNo">1625</span> temp = Maths.log(temp);<a name="line.1625"></a> |
| <span class="sourceLineNo">1626</span> temp = Maths.divide(temp, aptp);<a name="line.1626"></a> |
| <span class="sourceLineNo">1627</span> return temp;<a name="line.1627"></a> |
| <span class="sourceLineNo">1628</span> }<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> * Construct a list of datasets where each represents a coordinate varying over the hypergrid<a name="line.1631"></a> |
| <span class="sourceLineNo">1632</span> * formed by the input list of axes<a name="line.1632"></a> |
| <span class="sourceLineNo">1633</span> *<a name="line.1633"></a> |
| <span class="sourceLineNo">1634</span> * @param axes an array of 1D datasets representing axes<a name="line.1634"></a> |
| <span class="sourceLineNo">1635</span> * @return a list of coordinate datasets<a name="line.1635"></a> |
| <span class="sourceLineNo">1636</span> */<a name="line.1636"></a> |
| <span class="sourceLineNo">1637</span> public static List<Dataset> meshGrid(final Dataset... axes) {<a name="line.1637"></a> |
| <span class="sourceLineNo">1638</span> List<Dataset> result = new ArrayList<Dataset>();<a name="line.1638"></a> |
| <span class="sourceLineNo">1639</span> int rank = axes.length;<a name="line.1639"></a> |
| <span class="sourceLineNo">1640</span><a name="line.1640"></a> |
| <span class="sourceLineNo">1641</span> if (rank < 2) {<a name="line.1641"></a> |
| <span class="sourceLineNo">1642</span> utilsLogger.error("Two or more axes datasets are required");<a name="line.1642"></a> |
| <span class="sourceLineNo">1643</span> throw new IllegalArgumentException("Two or more axes datasets are required");<a name="line.1643"></a> |
| <span class="sourceLineNo">1644</span> }<a name="line.1644"></a> |
| <span class="sourceLineNo">1645</span><a name="line.1645"></a> |
| <span class="sourceLineNo">1646</span> int[] nshape = new int[rank];<a name="line.1646"></a> |
| <span class="sourceLineNo">1647</span><a name="line.1647"></a> |
| <span class="sourceLineNo">1648</span> for (int i = 0; i < rank; i++) {<a name="line.1648"></a> |
| <span class="sourceLineNo">1649</span> Dataset axis = axes[i];<a name="line.1649"></a> |
| <span class="sourceLineNo">1650</span> if (axis.getRank() != 1) {<a name="line.1650"></a> |
| <span class="sourceLineNo">1651</span> utilsLogger.error("Given axis is not 1D");<a name="line.1651"></a> |
| <span class="sourceLineNo">1652</span> throw new IllegalArgumentException("Given axis is not 1D");<a name="line.1652"></a> |
| <span class="sourceLineNo">1653</span> }<a name="line.1653"></a> |
| <span class="sourceLineNo">1654</span> nshape[i] = axis.getSize();<a name="line.1654"></a> |
| <span class="sourceLineNo">1655</span> }<a name="line.1655"></a> |
| <span class="sourceLineNo">1656</span><a name="line.1656"></a> |
| <span class="sourceLineNo">1657</span> for (int i = 0; i < rank; i++) {<a name="line.1657"></a> |
| <span class="sourceLineNo">1658</span> Dataset axis = axes[i];<a name="line.1658"></a> |
| <span class="sourceLineNo">1659</span> Dataset coord = DatasetFactory.zeros(axis.getClass(), nshape);<a name="line.1659"></a> |
| <span class="sourceLineNo">1660</span> result.add(coord);<a name="line.1660"></a> |
| <span class="sourceLineNo">1661</span><a name="line.1661"></a> |
| <span class="sourceLineNo">1662</span> final int alen = axis.getSize();<a name="line.1662"></a> |
| <span class="sourceLineNo">1663</span> for (int j = 0; j < alen; j++) {<a name="line.1663"></a> |
| <span class="sourceLineNo">1664</span> final Object obj = axis.getObjectAbs(j);<a name="line.1664"></a> |
| <span class="sourceLineNo">1665</span> PositionIterator pi = coord.getPositionIterator(i);<a name="line.1665"></a> |
| <span class="sourceLineNo">1666</span> final int[] pos = pi.getPos();<a name="line.1666"></a> |
| <span class="sourceLineNo">1667</span><a name="line.1667"></a> |
| <span class="sourceLineNo">1668</span> pos[i] = j;<a name="line.1668"></a> |
| <span class="sourceLineNo">1669</span> while (pi.hasNext()) {<a name="line.1669"></a> |
| <span class="sourceLineNo">1670</span> coord.set(obj, pos);<a name="line.1670"></a> |
| <span class="sourceLineNo">1671</span> }<a name="line.1671"></a> |
| <span class="sourceLineNo">1672</span> }<a name="line.1672"></a> |
| <span class="sourceLineNo">1673</span> }<a name="line.1673"></a> |
| <span class="sourceLineNo">1674</span><a name="line.1674"></a> |
| <span class="sourceLineNo">1675</span> return result;<a name="line.1675"></a> |
| <span class="sourceLineNo">1676</span> }<a name="line.1676"></a> |
| <span class="sourceLineNo">1677</span><a name="line.1677"></a> |
| <span class="sourceLineNo">1678</span> /**<a name="line.1678"></a> |
| <span class="sourceLineNo">1679</span> * Generate an index dataset for given dataset where sub-datasets contain index values<a name="line.1679"></a> |
| <span class="sourceLineNo">1680</span> *<a name="line.1680"></a> |
| <span class="sourceLineNo">1681</span> * @return an index dataset<a name="line.1681"></a> |
| <span class="sourceLineNo">1682</span> */<a name="line.1682"></a> |
| <span class="sourceLineNo">1683</span> public static IntegerDataset indices(int... shape) {<a name="line.1683"></a> |
| <span class="sourceLineNo">1684</span> // now create another dataset to plot against<a name="line.1684"></a> |
| <span class="sourceLineNo">1685</span> final int rank = shape.length;<a name="line.1685"></a> |
| <span class="sourceLineNo">1686</span> int[] nshape = new int[rank+1];<a name="line.1686"></a> |
| <span class="sourceLineNo">1687</span> nshape[0] = rank;<a name="line.1687"></a> |
| <span class="sourceLineNo">1688</span> for (int i = 0; i < rank; i++) {<a name="line.1688"></a> |
| <span class="sourceLineNo">1689</span> nshape[i+1] = shape[i];<a name="line.1689"></a> |
| <span class="sourceLineNo">1690</span> }<a name="line.1690"></a> |
| <span class="sourceLineNo">1691</span><a name="line.1691"></a> |
| <span class="sourceLineNo">1692</span> IntegerDataset index = new IntegerDataset(nshape);<a name="line.1692"></a> |
| <span class="sourceLineNo">1693</span><a name="line.1693"></a> |
| <span class="sourceLineNo">1694</span> if (rank == 1) {<a name="line.1694"></a> |
| <span class="sourceLineNo">1695</span> final int alen = shape[0];<a name="line.1695"></a> |
| <span class="sourceLineNo">1696</span> int[] pos = new int[2];<a name="line.1696"></a> |
| <span class="sourceLineNo">1697</span> for (int j = 0; j < alen; j++) {<a name="line.1697"></a> |
| <span class="sourceLineNo">1698</span> pos[1] = j;<a name="line.1698"></a> |
| <span class="sourceLineNo">1699</span> index.set(j, pos);<a name="line.1699"></a> |
| <span class="sourceLineNo">1700</span> }<a name="line.1700"></a> |
| <span class="sourceLineNo">1701</span> } else {<a name="line.1701"></a> |
| <span class="sourceLineNo">1702</span> for (int i = 1; i <= rank; i++) {<a name="line.1702"></a> |
| <span class="sourceLineNo">1703</span> final int alen = nshape[i];<a name="line.1703"></a> |
| <span class="sourceLineNo">1704</span> for (int j = 0; j < alen; j++) {<a name="line.1704"></a> |
| <span class="sourceLineNo">1705</span> PositionIterator pi = index.getPositionIterator(0, i);<a name="line.1705"></a> |
| <span class="sourceLineNo">1706</span> final int[] pos = pi.getPos();<a name="line.1706"></a> |
| <span class="sourceLineNo">1707</span><a name="line.1707"></a> |
| <span class="sourceLineNo">1708</span> pos[0] = i-1;<a name="line.1708"></a> |
| <span class="sourceLineNo">1709</span> pos[i] = j;<a name="line.1709"></a> |
| <span class="sourceLineNo">1710</span> while (pi.hasNext()) {<a name="line.1710"></a> |
| <span class="sourceLineNo">1711</span> index.set(j, pos);<a name="line.1711"></a> |
| <span class="sourceLineNo">1712</span> }<a name="line.1712"></a> |
| <span class="sourceLineNo">1713</span> }<a name="line.1713"></a> |
| <span class="sourceLineNo">1714</span> }<a name="line.1714"></a> |
| <span class="sourceLineNo">1715</span> }<a name="line.1715"></a> |
| <span class="sourceLineNo">1716</span> return index;<a name="line.1716"></a> |
| <span class="sourceLineNo">1717</span> }<a name="line.1717"></a> |
| <span class="sourceLineNo">1718</span><a name="line.1718"></a> |
| <span class="sourceLineNo">1719</span> /**<a name="line.1719"></a> |
| <span class="sourceLineNo">1720</span> * Get the centroid value of a dataset, this function works out the centroid in every direction<a name="line.1720"></a> |
| <span class="sourceLineNo">1721</span> *<a name="line.1721"></a> |
| <span class="sourceLineNo">1722</span> * @param a<a name="line.1722"></a> |
| <span class="sourceLineNo">1723</span> * the dataset to be analysed<a name="line.1723"></a> |
| <span class="sourceLineNo">1724</span> * @param bases the optional array of base coordinates to use as weights.<a name="line.1724"></a> |
| <span class="sourceLineNo">1725</span> * This defaults to the mid-point of indices<a name="line.1725"></a> |
| <span class="sourceLineNo">1726</span> * @return a double array containing the centroid for each dimension<a name="line.1726"></a> |
| <span class="sourceLineNo">1727</span> */<a name="line.1727"></a> |
| <span class="sourceLineNo">1728</span> public static double[] centroid(Dataset a, Dataset... bases) {<a name="line.1728"></a> |
| <span class="sourceLineNo">1729</span> int rank = a.getRank();<a name="line.1729"></a> |
| <span class="sourceLineNo">1730</span> if (bases.length > 0 && bases.length != rank) {<a name="line.1730"></a> |
| <span class="sourceLineNo">1731</span> throw new IllegalArgumentException("Number of bases must be zero or match rank of dataset");<a name="line.1731"></a> |
| <span class="sourceLineNo">1732</span> }<a name="line.1732"></a> |
| <span class="sourceLineNo">1733</span><a name="line.1733"></a> |
| <span class="sourceLineNo">1734</span> int[] shape = a.getShapeRef();<a name="line.1734"></a> |
| <span class="sourceLineNo">1735</span> if (bases.length == rank) {<a name="line.1735"></a> |
| <span class="sourceLineNo">1736</span> for (int i = 0; i < rank; i++) {<a name="line.1736"></a> |
| <span class="sourceLineNo">1737</span> Dataset b = bases[i];<a name="line.1737"></a> |
| <span class="sourceLineNo">1738</span> if (b.getRank() != 1 && b.getSize() != shape[i]) {<a name="line.1738"></a> |
| <span class="sourceLineNo">1739</span> throw new IllegalArgumentException("A base does not have shape to match given dataset");<a name="line.1739"></a> |
| <span class="sourceLineNo">1740</span> }<a name="line.1740"></a> |
| <span class="sourceLineNo">1741</span> }<a name="line.1741"></a> |
| <span class="sourceLineNo">1742</span> }<a name="line.1742"></a> |
| <span class="sourceLineNo">1743</span><a name="line.1743"></a> |
| <span class="sourceLineNo">1744</span> double[] dc = new double[rank];<a name="line.1744"></a> |
| <span class="sourceLineNo">1745</span> if (rank == 0)<a name="line.1745"></a> |
| <span class="sourceLineNo">1746</span> return dc;<a name="line.1746"></a> |
| <span class="sourceLineNo">1747</span><a name="line.1747"></a> |
| <span class="sourceLineNo">1748</span> final PositionIterator iter = new PositionIterator(shape);<a name="line.1748"></a> |
| <span class="sourceLineNo">1749</span> final int[] pos = iter.getPos();<a name="line.1749"></a> |
| <span class="sourceLineNo">1750</span><a name="line.1750"></a> |
| <span class="sourceLineNo">1751</span> double tsum = 0.0;<a name="line.1751"></a> |
| <span class="sourceLineNo">1752</span> while (iter.hasNext()) {<a name="line.1752"></a> |
| <span class="sourceLineNo">1753</span> double val = a.getDouble(pos);<a name="line.1753"></a> |
| <span class="sourceLineNo">1754</span> tsum += val;<a name="line.1754"></a> |
| <span class="sourceLineNo">1755</span> for (int d = 0; d < rank; d++) {<a name="line.1755"></a> |
| <span class="sourceLineNo">1756</span> Dataset b = bases.length == 0 ? null : bases[d];<a name="line.1756"></a> |
| <span class="sourceLineNo">1757</span> if (b == null) {<a name="line.1757"></a> |
| <span class="sourceLineNo">1758</span> dc[d] += (pos[d] + 0.5) * val;<a name="line.1758"></a> |
| <span class="sourceLineNo">1759</span> } else {<a name="line.1759"></a> |
| <span class="sourceLineNo">1760</span> dc[d] += b.getElementDoubleAbs(pos[d]) * val;<a name="line.1760"></a> |
| <span class="sourceLineNo">1761</span> }<a name="line.1761"></a> |
| <span class="sourceLineNo">1762</span> }<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> for (int d = 0; d < rank; d++) {<a name="line.1765"></a> |
| <span class="sourceLineNo">1766</span> dc[d] /= tsum;<a name="line.1766"></a> |
| <span class="sourceLineNo">1767</span> }<a name="line.1767"></a> |
| <span class="sourceLineNo">1768</span> return dc;<a name="line.1768"></a> |
| <span class="sourceLineNo">1769</span> }<a name="line.1769"></a> |
| <span class="sourceLineNo">1770</span><a name="line.1770"></a> |
| <span class="sourceLineNo">1771</span> /**<a name="line.1771"></a> |
| <span class="sourceLineNo">1772</span> * Find linearly-interpolated crossing points where the given dataset crosses the given value<a name="line.1772"></a> |
| <span class="sourceLineNo">1773</span> *<a name="line.1773"></a> |
| <span class="sourceLineNo">1774</span> * @param d<a name="line.1774"></a> |
| <span class="sourceLineNo">1775</span> * @param value<a name="line.1775"></a> |
| <span class="sourceLineNo">1776</span> * @return list of interpolated indices<a name="line.1776"></a> |
| <span class="sourceLineNo">1777</span> */<a name="line.1777"></a> |
| <span class="sourceLineNo">1778</span> public static List<Double> crossings(Dataset d, double value) {<a name="line.1778"></a> |
| <span class="sourceLineNo">1779</span> if (d.getRank() != 1) {<a name="line.1779"></a> |
| <span class="sourceLineNo">1780</span> utilsLogger.error("Only 1d datasets supported");<a name="line.1780"></a> |
| <span class="sourceLineNo">1781</span> throw new UnsupportedOperationException("Only 1d datasets supported");<a name="line.1781"></a> |
| <span class="sourceLineNo">1782</span> }<a name="line.1782"></a> |
| <span class="sourceLineNo">1783</span> List<Double> results = new ArrayList<Double>();<a name="line.1783"></a> |
| <span class="sourceLineNo">1784</span><a name="line.1784"></a> |
| <span class="sourceLineNo">1785</span> // run through all pairs of points on the line and see if value lies within<a name="line.1785"></a> |
| <span class="sourceLineNo">1786</span> IndexIterator it = d.getIterator();<a name="line.1786"></a> |
| <span class="sourceLineNo">1787</span> double y1, y2;<a name="line.1787"></a> |
| <span class="sourceLineNo">1788</span><a name="line.1788"></a> |
| <span class="sourceLineNo">1789</span> y2 = it.hasNext() ? d.getElementDoubleAbs(it.index) : 0;<a name="line.1789"></a> |
| <span class="sourceLineNo">1790</span> double x = 1;<a name="line.1790"></a> |
| <span class="sourceLineNo">1791</span> while (it.hasNext()) {<a name="line.1791"></a> |
| <span class="sourceLineNo">1792</span> y1 = y2;<a name="line.1792"></a> |
| <span class="sourceLineNo">1793</span> y2 = d.getElementDoubleAbs(it.index);<a name="line.1793"></a> |
| <span class="sourceLineNo">1794</span> // check if value lies within pair [y1, y2]<a name="line.1794"></a> |
| <span class="sourceLineNo">1795</span> if ((y1 <= value && value < y2) || (y1 > value && y2 <= value)) {<a name="line.1795"></a> |
| <span class="sourceLineNo">1796</span> final double f = (value - y2)/(y2 - y1); // negative distance from right to left<a name="line.1796"></a> |
| <span class="sourceLineNo">1797</span> results.add(x + f);<a name="line.1797"></a> |
| <span class="sourceLineNo">1798</span> }<a name="line.1798"></a> |
| <span class="sourceLineNo">1799</span> x++;<a name="line.1799"></a> |
| <span class="sourceLineNo">1800</span> }<a name="line.1800"></a> |
| <span class="sourceLineNo">1801</span> if (y2 == value) { // add end point of it intersects<a name="line.1801"></a> |
| <span class="sourceLineNo">1802</span> results.add(x);<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> return results;<a name="line.1805"></a> |
| <span class="sourceLineNo">1806</span> }<a name="line.1806"></a> |
| <span class="sourceLineNo">1807</span><a name="line.1807"></a> |
| <span class="sourceLineNo">1808</span> /**<a name="line.1808"></a> |
| <span class="sourceLineNo">1809</span> * Find x values of all the crossing points of the dataset with the given y value<a name="line.1809"></a> |
| <span class="sourceLineNo">1810</span> *<a name="line.1810"></a> |
| <span class="sourceLineNo">1811</span> * @param xAxis<a name="line.1811"></a> |
| <span class="sourceLineNo">1812</span> * Dataset of the X axis that needs to be looked at<a name="line.1812"></a> |
| <span class="sourceLineNo">1813</span> * @param yAxis<a name="line.1813"></a> |
| <span class="sourceLineNo">1814</span> * Dataset of the Y axis that needs to be looked at<a name="line.1814"></a> |
| <span class="sourceLineNo">1815</span> * @param yValue<a name="line.1815"></a> |
| <span class="sourceLineNo">1816</span> * The y value the X values are required for<a name="line.1816"></a> |
| <span class="sourceLineNo">1817</span> * @return An list of doubles containing all the X coordinates of where the line crosses<a name="line.1817"></a> |
| <span class="sourceLineNo">1818</span> */<a name="line.1818"></a> |
| <span class="sourceLineNo">1819</span> public static List<Double> crossings(Dataset xAxis, Dataset yAxis, double yValue) {<a name="line.1819"></a> |
| <span class="sourceLineNo">1820</span> if (xAxis.getSize() > yAxis.getSize()) {<a name="line.1820"></a> |
| <span class="sourceLineNo">1821</span> throw new IllegalArgumentException(<a name="line.1821"></a> |
| <span class="sourceLineNo">1822</span> "Number of values of yAxis must as least be equal to the number of values of xAxis");<a name="line.1822"></a> |
| <span class="sourceLineNo">1823</span> }<a name="line.1823"></a> |
| <span class="sourceLineNo">1824</span><a name="line.1824"></a> |
| <span class="sourceLineNo">1825</span> List<Double> results = new ArrayList<Double>();<a name="line.1825"></a> |
| <span class="sourceLineNo">1826</span><a name="line.1826"></a> |
| <span class="sourceLineNo">1827</span> List<Double> indices = crossings(yAxis, yValue);<a name="line.1827"></a> |
| <span class="sourceLineNo">1828</span><a name="line.1828"></a> |
| <span class="sourceLineNo">1829</span> for (double xi : indices) {<a name="line.1829"></a> |
| <span class="sourceLineNo">1830</span> results.add(Maths.interpolate(xAxis, xi));<a name="line.1830"></a> |
| <span class="sourceLineNo">1831</span> }<a name="line.1831"></a> |
| <span class="sourceLineNo">1832</span> return results;<a name="line.1832"></a> |
| <span class="sourceLineNo">1833</span> }<a name="line.1833"></a> |
| <span class="sourceLineNo">1834</span><a name="line.1834"></a> |
| <span class="sourceLineNo">1835</span> /**<a name="line.1835"></a> |
| <span class="sourceLineNo">1836</span> * Function that uses the crossings function but prunes the result, so that multiple crossings within a<a name="line.1836"></a> |
| <span class="sourceLineNo">1837</span> * certain proportion of the overall range of the x values<a name="line.1837"></a> |
| <span class="sourceLineNo">1838</span> *<a name="line.1838"></a> |
| <span class="sourceLineNo">1839</span> * @param xAxis<a name="line.1839"></a> |
| <span class="sourceLineNo">1840</span> * Dataset of the X axis<a name="line.1840"></a> |
| <span class="sourceLineNo">1841</span> * @param yAxis<a name="line.1841"></a> |
| <span class="sourceLineNo">1842</span> * Dataset of the Y axis<a name="line.1842"></a> |
| <span class="sourceLineNo">1843</span> * @param yValue<a name="line.1843"></a> |
| <span class="sourceLineNo">1844</span> * The y value the x values are required for<a name="line.1844"></a> |
| <span class="sourceLineNo">1845</span> * @param xRangeProportion<a name="line.1845"></a> |
| <span class="sourceLineNo">1846</span> * The proportion of the overall x spread used to prune result<a name="line.1846"></a> |
| <span class="sourceLineNo">1847</span> * @return A list containing all the unique crossing points<a name="line.1847"></a> |
| <span class="sourceLineNo">1848</span> */<a name="line.1848"></a> |
| <span class="sourceLineNo">1849</span> public static List<Double> crossings(Dataset xAxis, Dataset yAxis, double yValue, double xRangeProportion) {<a name="line.1849"></a> |
| <span class="sourceLineNo">1850</span> // get the values found<a name="line.1850"></a> |
| <span class="sourceLineNo">1851</span> List<Double> vals = crossings(xAxis, yAxis, yValue);<a name="line.1851"></a> |
| <span class="sourceLineNo">1852</span><a name="line.1852"></a> |
| <span class="sourceLineNo">1853</span> // use the proportion to calculate the error spacing<a name="line.1853"></a> |
| <span class="sourceLineNo">1854</span> double error = xRangeProportion * xAxis.peakToPeak().doubleValue();<a name="line.1854"></a> |
| <span class="sourceLineNo">1855</span><a name="line.1855"></a> |
| <span class="sourceLineNo">1856</span> int i = 0;<a name="line.1856"></a> |
| <span class="sourceLineNo">1857</span> // now go through and check for groups of three crossings which are all<a name="line.1857"></a> |
| <span class="sourceLineNo">1858</span> // within the boundaries<a name="line.1858"></a> |
| <span class="sourceLineNo">1859</span> while (i <= vals.size() - 3) {<a name="line.1859"></a> |
| <span class="sourceLineNo">1860</span> double v1 = Math.abs(vals.get(i) - vals.get(i + 2));<a name="line.1860"></a> |
| <span class="sourceLineNo">1861</span> if (v1 < error) {<a name="line.1861"></a> |
| <span class="sourceLineNo">1862</span> // these 3 points should be treated as one<a name="line.1862"></a> |
| <span class="sourceLineNo">1863</span> // make the first point equal to the average of them all<a name="line.1863"></a> |
| <span class="sourceLineNo">1864</span> vals.set(i + 2, ((vals.get(i) + vals.get(i + 1) + vals.get(i + 2)) / 3.0));<a name="line.1864"></a> |
| <span class="sourceLineNo">1865</span> // remove the other offending points<a name="line.1865"></a> |
| <span class="sourceLineNo">1866</span> vals.remove(i);<a name="line.1866"></a> |
| <span class="sourceLineNo">1867</span> vals.remove(i);<a name="line.1867"></a> |
| <span class="sourceLineNo">1868</span> } else {<a name="line.1868"></a> |
| <span class="sourceLineNo">1869</span> i++;<a name="line.1869"></a> |
| <span class="sourceLineNo">1870</span> }<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> // once the thinning process has been completed, return the pruned list<a name="line.1873"></a> |
| <span class="sourceLineNo">1874</span> return vals;<a name="line.1874"></a> |
| <span class="sourceLineNo">1875</span> }<a name="line.1875"></a> |
| <span class="sourceLineNo">1876</span><a name="line.1876"></a> |
| <span class="sourceLineNo">1877</span> // recursive function<a name="line.1877"></a> |
| <span class="sourceLineNo">1878</span> private static void setRow(Object row, Dataset a, int... pos) {<a name="line.1878"></a> |
| <span class="sourceLineNo">1879</span> final int l = Array.getLength(row);<a name="line.1879"></a> |
| <span class="sourceLineNo">1880</span> final int rank = pos.length;<a name="line.1880"></a> |
| <span class="sourceLineNo">1881</span> final int[] npos = Arrays.copyOf(pos, rank+1);<a name="line.1881"></a> |
| <span class="sourceLineNo">1882</span> Object r;<a name="line.1882"></a> |
| <span class="sourceLineNo">1883</span> if (rank+1 < a.getRank()) {<a name="line.1883"></a> |
| <span class="sourceLineNo">1884</span> for (int i = 0; i < l; i++) {<a name="line.1884"></a> |
| <span class="sourceLineNo">1885</span> npos[rank] = i;<a name="line.1885"></a> |
| <span class="sourceLineNo">1886</span> r = Array.get(row, i);<a name="line.1886"></a> |
| <span class="sourceLineNo">1887</span> setRow(r, a, npos);<a name="line.1887"></a> |
| <span class="sourceLineNo">1888</span> }<a name="line.1888"></a> |
| <span class="sourceLineNo">1889</span> } else {<a name="line.1889"></a> |
| <span class="sourceLineNo">1890</span> for (int i = 0; i < l; i++) {<a name="line.1890"></a> |
| <span class="sourceLineNo">1891</span> npos[rank] = i;<a name="line.1891"></a> |
| <span class="sourceLineNo">1892</span> r = a.getObject(npos);<a name="line.1892"></a> |
| <span class="sourceLineNo">1893</span> Array.set(row, i, r);<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> }<a name="line.1896"></a> |
| <span class="sourceLineNo">1897</span><a name="line.1897"></a> |
| <span class="sourceLineNo">1898</span> /**<a name="line.1898"></a> |
| <span class="sourceLineNo">1899</span> * Create Java array (of arrays) from dataset<a name="line.1899"></a> |
| <span class="sourceLineNo">1900</span> * @param a dataset<a name="line.1900"></a> |
| <span class="sourceLineNo">1901</span> * @return Java array (of arrays...)<a name="line.1901"></a> |
| <span class="sourceLineNo">1902</span> */<a name="line.1902"></a> |
| <span class="sourceLineNo">1903</span> public static Object createJavaArray(Dataset a) {<a name="line.1903"></a> |
| <span class="sourceLineNo">1904</span> if (a.getElementsPerItem() > 1) {<a name="line.1904"></a> |
| <span class="sourceLineNo">1905</span> a = createDatasetFromCompoundDataset((CompoundDataset) a, true);<a name="line.1905"></a> |
| <span class="sourceLineNo">1906</span> }<a name="line.1906"></a> |
| <span class="sourceLineNo">1907</span> Object matrix;<a name="line.1907"></a> |
| <span class="sourceLineNo">1908</span><a name="line.1908"></a> |
| <span class="sourceLineNo">1909</span> int[] shape = a.getShapeRef();<a name="line.1909"></a> |
| <span class="sourceLineNo">1910</span> switch (a.getDType()) {<a name="line.1910"></a> |
| <span class="sourceLineNo">1911</span> case Dataset.BOOL:<a name="line.1911"></a> |
| <span class="sourceLineNo">1912</span> matrix = Array.newInstance(boolean.class, shape);<a name="line.1912"></a> |
| <span class="sourceLineNo">1913</span> break;<a name="line.1913"></a> |
| <span class="sourceLineNo">1914</span> case Dataset.INT8:<a name="line.1914"></a> |
| <span class="sourceLineNo">1915</span> matrix = Array.newInstance(byte.class, shape);<a name="line.1915"></a> |
| <span class="sourceLineNo">1916</span> break;<a name="line.1916"></a> |
| <span class="sourceLineNo">1917</span> case Dataset.INT16:<a name="line.1917"></a> |
| <span class="sourceLineNo">1918</span> matrix = Array.newInstance(short.class, shape);<a name="line.1918"></a> |
| <span class="sourceLineNo">1919</span> break;<a name="line.1919"></a> |
| <span class="sourceLineNo">1920</span> case Dataset.INT32:<a name="line.1920"></a> |
| <span class="sourceLineNo">1921</span> matrix = Array.newInstance(int.class, shape);<a name="line.1921"></a> |
| <span class="sourceLineNo">1922</span> break;<a name="line.1922"></a> |
| <span class="sourceLineNo">1923</span> case Dataset.INT64:<a name="line.1923"></a> |
| <span class="sourceLineNo">1924</span> matrix = Array.newInstance(long.class, shape);<a name="line.1924"></a> |
| <span class="sourceLineNo">1925</span> break;<a name="line.1925"></a> |
| <span class="sourceLineNo">1926</span> case Dataset.FLOAT32:<a name="line.1926"></a> |
| <span class="sourceLineNo">1927</span> matrix = Array.newInstance(float.class, shape);<a name="line.1927"></a> |
| <span class="sourceLineNo">1928</span> break;<a name="line.1928"></a> |
| <span class="sourceLineNo">1929</span> case Dataset.FLOAT64:<a name="line.1929"></a> |
| <span class="sourceLineNo">1930</span> matrix = Array.newInstance(double.class, shape);<a name="line.1930"></a> |
| <span class="sourceLineNo">1931</span> break;<a name="line.1931"></a> |
| <span class="sourceLineNo">1932</span> default:<a name="line.1932"></a> |
| <span class="sourceLineNo">1933</span> utilsLogger.error("Dataset type not supported");<a name="line.1933"></a> |
| <span class="sourceLineNo">1934</span> throw new IllegalArgumentException("Dataset type not supported");<a name="line.1934"></a> |
| <span class="sourceLineNo">1935</span> }<a name="line.1935"></a> |
| <span class="sourceLineNo">1936</span><a name="line.1936"></a> |
| <span class="sourceLineNo">1937</span> // populate matrix<a name="line.1937"></a> |
| <span class="sourceLineNo">1938</span> setRow(matrix, a);<a name="line.1938"></a> |
| <span class="sourceLineNo">1939</span> return matrix;<a name="line.1939"></a> |
| <span class="sourceLineNo">1940</span> }<a name="line.1940"></a> |
| <span class="sourceLineNo">1941</span><a name="line.1941"></a> |
| <span class="sourceLineNo">1942</span> /**<a name="line.1942"></a> |
| <span class="sourceLineNo">1943</span> * Removes NaNs and infinities from floating point datasets.<a name="line.1943"></a> |
| <span class="sourceLineNo">1944</span> * All other dataset types are ignored.<a name="line.1944"></a> |
| <span class="sourceLineNo">1945</span> *<a name="line.1945"></a> |
| <span class="sourceLineNo">1946</span> * @param a dataset<a name="line.1946"></a> |
| <span class="sourceLineNo">1947</span> * @param value replacement value<a name="line.1947"></a> |
| <span class="sourceLineNo">1948</span> */<a name="line.1948"></a> |
| <span class="sourceLineNo">1949</span> public static void removeNansAndInfinities(Dataset a, final Number value) {<a name="line.1949"></a> |
| <span class="sourceLineNo">1950</span> if (a instanceof DoubleDataset) {<a name="line.1950"></a> |
| <span class="sourceLineNo">1951</span> final double dvalue = DTypeUtils.toReal(value);<a name="line.1951"></a> |
| <span class="sourceLineNo">1952</span> final DoubleDataset set = (DoubleDataset) a;<a name="line.1952"></a> |
| <span class="sourceLineNo">1953</span> final IndexIterator it = set.getIterator();<a name="line.1953"></a> |
| <span class="sourceLineNo">1954</span> final double[] data = set.getData();<a name="line.1954"></a> |
| <span class="sourceLineNo">1955</span> while (it.hasNext()) {<a name="line.1955"></a> |
| <span class="sourceLineNo">1956</span> double x = data[it.index];<a name="line.1956"></a> |
| <span class="sourceLineNo">1957</span> if (Double.isNaN(x) || Double.isInfinite(x))<a name="line.1957"></a> |
| <span class="sourceLineNo">1958</span> data[it.index] = dvalue;<a name="line.1958"></a> |
| <span class="sourceLineNo">1959</span> }<a name="line.1959"></a> |
| <span class="sourceLineNo">1960</span> } else if (a instanceof FloatDataset) {<a name="line.1960"></a> |
| <span class="sourceLineNo">1961</span> final float fvalue = (float) DTypeUtils.toReal(value);<a name="line.1961"></a> |
| <span class="sourceLineNo">1962</span> final FloatDataset set = (FloatDataset) a;<a name="line.1962"></a> |
| <span class="sourceLineNo">1963</span> final IndexIterator it = set.getIterator();<a name="line.1963"></a> |
| <span class="sourceLineNo">1964</span> final float[] data = set.getData();<a name="line.1964"></a> |
| <span class="sourceLineNo">1965</span> while (it.hasNext()) {<a name="line.1965"></a> |
| <span class="sourceLineNo">1966</span> float x = data[it.index];<a name="line.1966"></a> |
| <span class="sourceLineNo">1967</span> if (Float.isNaN(x) || Float.isInfinite(x))<a name="line.1967"></a> |
| <span class="sourceLineNo">1968</span> data[it.index] = fvalue;<a name="line.1968"></a> |
| <span class="sourceLineNo">1969</span> }<a name="line.1969"></a> |
| <span class="sourceLineNo">1970</span> } else if (a instanceof CompoundDoubleDataset) {<a name="line.1970"></a> |
| <span class="sourceLineNo">1971</span> final double dvalue = DTypeUtils.toReal(value);<a name="line.1971"></a> |
| <span class="sourceLineNo">1972</span> final CompoundDoubleDataset set = (CompoundDoubleDataset) a;<a name="line.1972"></a> |
| <span class="sourceLineNo">1973</span> final int is = set.getElementsPerItem();<a name="line.1973"></a> |
| <span class="sourceLineNo">1974</span> final IndexIterator it = set.getIterator();<a name="line.1974"></a> |
| <span class="sourceLineNo">1975</span> final double[] data = set.getData();<a name="line.1975"></a> |
| <span class="sourceLineNo">1976</span> while (it.hasNext()) {<a name="line.1976"></a> |
| <span class="sourceLineNo">1977</span> for (int j = 0; j < is; j++) {<a name="line.1977"></a> |
| <span class="sourceLineNo">1978</span> double x = data[it.index + j];<a name="line.1978"></a> |
| <span class="sourceLineNo">1979</span> if (Double.isNaN(x) || Double.isInfinite(x))<a name="line.1979"></a> |
| <span class="sourceLineNo">1980</span> data[it.index + j] = dvalue;<a name="line.1980"></a> |
| <span class="sourceLineNo">1981</span> }<a name="line.1981"></a> |
| <span class="sourceLineNo">1982</span> }<a name="line.1982"></a> |
| <span class="sourceLineNo">1983</span> } else if (a instanceof CompoundFloatDataset) {<a name="line.1983"></a> |
| <span class="sourceLineNo">1984</span> final float fvalue = (float) DTypeUtils.toReal(value);<a name="line.1984"></a> |
| <span class="sourceLineNo">1985</span> final CompoundFloatDataset set = (CompoundFloatDataset) a;<a name="line.1985"></a> |
| <span class="sourceLineNo">1986</span> final int is = set.getElementsPerItem();<a name="line.1986"></a> |
| <span class="sourceLineNo">1987</span> final IndexIterator it = set.getIterator();<a name="line.1987"></a> |
| <span class="sourceLineNo">1988</span> final float[] data = set.getData();<a name="line.1988"></a> |
| <span class="sourceLineNo">1989</span> while (it.hasNext()) {<a name="line.1989"></a> |
| <span class="sourceLineNo">1990</span> for (int j = 0; j < is; j++) {<a name="line.1990"></a> |
| <span class="sourceLineNo">1991</span> float x = data[it.index + j];<a name="line.1991"></a> |
| <span class="sourceLineNo">1992</span> if (Float.isNaN(x) || Float.isInfinite(x))<a name="line.1992"></a> |
| <span class="sourceLineNo">1993</span> data[it.index + j] = fvalue;<a name="line.1993"></a> |
| <span class="sourceLineNo">1994</span> }<a name="line.1994"></a> |
| <span class="sourceLineNo">1995</span> }<a name="line.1995"></a> |
| <span class="sourceLineNo">1996</span> }<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> * Make floating point datasets contain only finite values. Infinities and NaNs are replaced<a name="line.2000"></a> |
| <span class="sourceLineNo">2001</span> * by +/- MAX_VALUE and 0, respectively.<a name="line.2001"></a> |
| <span class="sourceLineNo">2002</span> * All other dataset types are ignored.<a name="line.2002"></a> |
| <span class="sourceLineNo">2003</span> *<a name="line.2003"></a> |
| <span class="sourceLineNo">2004</span> * @param a dataset<a name="line.2004"></a> |
| <span class="sourceLineNo">2005</span> */<a name="line.2005"></a> |
| <span class="sourceLineNo">2006</span> public static void makeFinite(Dataset a) {<a name="line.2006"></a> |
| <span class="sourceLineNo">2007</span> if (a instanceof DoubleDataset) {<a name="line.2007"></a> |
| <span class="sourceLineNo">2008</span> final DoubleDataset set = (DoubleDataset) a;<a name="line.2008"></a> |
| <span class="sourceLineNo">2009</span> final IndexIterator it = set.getIterator();<a name="line.2009"></a> |
| <span class="sourceLineNo">2010</span> final double[] data = set.getData();<a name="line.2010"></a> |
| <span class="sourceLineNo">2011</span> while (it.hasNext()) {<a name="line.2011"></a> |
| <span class="sourceLineNo">2012</span> final double x = data[it.index];<a name="line.2012"></a> |
| <span class="sourceLineNo">2013</span> if (Double.isNaN(x))<a name="line.2013"></a> |
| <span class="sourceLineNo">2014</span> data[it.index] = 0;<a name="line.2014"></a> |
| <span class="sourceLineNo">2015</span> else if (Double.isInfinite(x))<a name="line.2015"></a> |
| <span class="sourceLineNo">2016</span> data[it.index] = x > 0 ? Double.MAX_VALUE : -Double.MAX_VALUE;<a name="line.2016"></a> |
| <span class="sourceLineNo">2017</span> }<a name="line.2017"></a> |
| <span class="sourceLineNo">2018</span> } else if (a instanceof FloatDataset) {<a name="line.2018"></a> |
| <span class="sourceLineNo">2019</span> final FloatDataset set = (FloatDataset) a;<a name="line.2019"></a> |
| <span class="sourceLineNo">2020</span> final IndexIterator it = set.getIterator();<a name="line.2020"></a> |
| <span class="sourceLineNo">2021</span> final float[] data = set.getData();<a name="line.2021"></a> |
| <span class="sourceLineNo">2022</span> while (it.hasNext()) {<a name="line.2022"></a> |
| <span class="sourceLineNo">2023</span> final float x = data[it.index];<a name="line.2023"></a> |
| <span class="sourceLineNo">2024</span> if (Float.isNaN(x))<a name="line.2024"></a> |
| <span class="sourceLineNo">2025</span> data[it.index] = 0;<a name="line.2025"></a> |
| <span class="sourceLineNo">2026</span> else if (Float.isInfinite(x))<a name="line.2026"></a> |
| <span class="sourceLineNo">2027</span> data[it.index] = x > 0 ? Float.MAX_VALUE : -Float.MAX_VALUE;<a name="line.2027"></a> |
| <span class="sourceLineNo">2028</span> }<a name="line.2028"></a> |
| <span class="sourceLineNo">2029</span> } else if (a instanceof CompoundDoubleDataset) {<a name="line.2029"></a> |
| <span class="sourceLineNo">2030</span> final CompoundDoubleDataset set = (CompoundDoubleDataset) a;<a name="line.2030"></a> |
| <span class="sourceLineNo">2031</span> final int is = set.getElementsPerItem();<a name="line.2031"></a> |
| <span class="sourceLineNo">2032</span> final IndexIterator it = set.getIterator();<a name="line.2032"></a> |
| <span class="sourceLineNo">2033</span> final double[] data = set.getData();<a name="line.2033"></a> |
| <span class="sourceLineNo">2034</span> while (it.hasNext()) {<a name="line.2034"></a> |
| <span class="sourceLineNo">2035</span> for (int j = 0; j < is; j++) {<a name="line.2035"></a> |
| <span class="sourceLineNo">2036</span> final double x = data[it.index + j];<a name="line.2036"></a> |
| <span class="sourceLineNo">2037</span> if (Double.isNaN(x))<a name="line.2037"></a> |
| <span class="sourceLineNo">2038</span> data[it.index + j] = 0;<a name="line.2038"></a> |
| <span class="sourceLineNo">2039</span> else if (Double.isInfinite(x))<a name="line.2039"></a> |
| <span class="sourceLineNo">2040</span> data[it.index + j] = x > 0 ? Double.MAX_VALUE : -Double.MAX_VALUE;<a name="line.2040"></a> |
| <span class="sourceLineNo">2041</span> }<a name="line.2041"></a> |
| <span class="sourceLineNo">2042</span> }<a name="line.2042"></a> |
| <span class="sourceLineNo">2043</span> } else if (a instanceof CompoundFloatDataset) {<a name="line.2043"></a> |
| <span class="sourceLineNo">2044</span> final CompoundFloatDataset set = (CompoundFloatDataset) a;<a name="line.2044"></a> |
| <span class="sourceLineNo">2045</span> final int is = set.getElementsPerItem();<a name="line.2045"></a> |
| <span class="sourceLineNo">2046</span> final IndexIterator it = set.getIterator();<a name="line.2046"></a> |
| <span class="sourceLineNo">2047</span> final float[] data = set.getData();<a name="line.2047"></a> |
| <span class="sourceLineNo">2048</span> while (it.hasNext()) {<a name="line.2048"></a> |
| <span class="sourceLineNo">2049</span> for (int j = 0; j < is; j++) {<a name="line.2049"></a> |
| <span class="sourceLineNo">2050</span> final float x = data[it.index + j];<a name="line.2050"></a> |
| <span class="sourceLineNo">2051</span> if (Float.isNaN(x))<a name="line.2051"></a> |
| <span class="sourceLineNo">2052</span> data[it.index + j] = 0;<a name="line.2052"></a> |
| <span class="sourceLineNo">2053</span> else if (Float.isInfinite(x))<a name="line.2053"></a> |
| <span class="sourceLineNo">2054</span> data[it.index + j] = x > 0 ? Float.MAX_VALUE : -Float.MAX_VALUE;<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> }<a name="line.2058"></a> |
| <span class="sourceLineNo">2059</span><a name="line.2059"></a> |
| <span class="sourceLineNo">2060</span> /**<a name="line.2060"></a> |
| <span class="sourceLineNo">2061</span> * Find absolute index of first value in dataset that is equal to given number<a name="line.2061"></a> |
| <span class="sourceLineNo">2062</span> * @param a<a name="line.2062"></a> |
| <span class="sourceLineNo">2063</span> * @param n<a name="line.2063"></a> |
| <span class="sourceLineNo">2064</span> * @return absolute index (if greater than a.getSize() then no value found)<a name="line.2064"></a> |
| <span class="sourceLineNo">2065</span> */<a name="line.2065"></a> |
| <span class="sourceLineNo">2066</span> public static int findIndexEqualTo(final Dataset a, final double n) {<a name="line.2066"></a> |
| <span class="sourceLineNo">2067</span> IndexIterator iter = a.getIterator();<a name="line.2067"></a> |
| <span class="sourceLineNo">2068</span> while (iter.hasNext()) {<a name="line.2068"></a> |
| <span class="sourceLineNo">2069</span> if (a.getElementDoubleAbs(iter.index) == n)<a name="line.2069"></a> |
| <span class="sourceLineNo">2070</span> break;<a name="line.2070"></a> |
| <span class="sourceLineNo">2071</span> }<a name="line.2071"></a> |
| <span class="sourceLineNo">2072</span><a name="line.2072"></a> |
| <span class="sourceLineNo">2073</span> return iter.index;<a name="line.2073"></a> |
| <span class="sourceLineNo">2074</span> }<a name="line.2074"></a> |
| <span class="sourceLineNo">2075</span><a name="line.2075"></a> |
| <span class="sourceLineNo">2076</span> /**<a name="line.2076"></a> |
| <span class="sourceLineNo">2077</span> * Find absolute index of first value in dataset that is greater than given number<a name="line.2077"></a> |
| <span class="sourceLineNo">2078</span> * @param a<a name="line.2078"></a> |
| <span class="sourceLineNo">2079</span> * @param n<a name="line.2079"></a> |
| <span class="sourceLineNo">2080</span> * @return absolute index (if greater than a.getSize() then no value found)<a name="line.2080"></a> |
| <span class="sourceLineNo">2081</span> */<a name="line.2081"></a> |
| <span class="sourceLineNo">2082</span> public static int findIndexGreaterThan(final Dataset a, final double n) {<a name="line.2082"></a> |
| <span class="sourceLineNo">2083</span> IndexIterator iter = a.getIterator();<a name="line.2083"></a> |
| <span class="sourceLineNo">2084</span> while (iter.hasNext()) {<a name="line.2084"></a> |
| <span class="sourceLineNo">2085</span> if (a.getElementDoubleAbs(iter.index) > n)<a name="line.2085"></a> |
| <span class="sourceLineNo">2086</span> break;<a name="line.2086"></a> |
| <span class="sourceLineNo">2087</span> }<a name="line.2087"></a> |
| <span class="sourceLineNo">2088</span><a name="line.2088"></a> |
| <span class="sourceLineNo">2089</span> return iter.index;<a name="line.2089"></a> |
| <span class="sourceLineNo">2090</span> }<a name="line.2090"></a> |
| <span class="sourceLineNo">2091</span><a name="line.2091"></a> |
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| <span class="sourceLineNo">2095</span> * @param n<a name="line.2095"></a> |
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| <span class="sourceLineNo">2097</span> */<a name="line.2097"></a> |
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| <span class="sourceLineNo">2111</span> * @param n<a name="line.2111"></a> |
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| <span class="sourceLineNo">2113</span> */<a name="line.2113"></a> |
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| <span class="sourceLineNo">2124</span> /**<a name="line.2124"></a> |
| <span class="sourceLineNo">2125</span> * Find absolute index of first value in dataset that is less than or equal to given number<a name="line.2125"></a> |
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| <span class="sourceLineNo">2129</span> */<a name="line.2129"></a> |
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| <span class="sourceLineNo">2131</span> IndexIterator iter = a.getIterator();<a name="line.2131"></a> |
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| <span class="sourceLineNo">2158</span><a name="line.2158"></a> |
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| <span class="sourceLineNo">2161</span> if (x <= vl) {<a name="line.2161"></a> |
| <span class="sourceLineNo">2162</span> if (x == vl && indexes.getAbs(l) < 0)<a name="line.2162"></a> |
| <span class="sourceLineNo">2163</span> indexes.setAbs(l, it.index);<a name="line.2163"></a> |
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| <span class="sourceLineNo">2190</span><a name="line.2190"></a> |
| <span class="sourceLineNo">2191</span> int l = 0; // binary search to find value in sorted dataset<a name="line.2191"></a> |
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| <span class="sourceLineNo">2222</span><a name="line.2222"></a> |
| <span class="sourceLineNo">2223</span> /**<a name="line.2223"></a> |
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| <span class="sourceLineNo">2225</span> * @param a<a name="line.2225"></a> |
| <span class="sourceLineNo">2226</span> * @param values sorted 1D dataset of values to find<a name="line.2226"></a> |
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| <span class="sourceLineNo">2229</span> public static IntegerDataset findIndexesForValues(final Dataset a, final Dataset values) {<a name="line.2229"></a> |
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| <span class="sourceLineNo">2233</span> IntegerDataset indexes = new IntegerDataset(a.getSize());<a name="line.2233"></a> |
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| <span class="sourceLineNo">2235</span><a name="line.2235"></a> |
| <span class="sourceLineNo">2236</span> IndexIterator it = a.getIterator();<a name="line.2236"></a> |
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| <span class="sourceLineNo">2238</span> final int n = values.getSize();<a name="line.2238"></a> |
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| <span class="sourceLineNo">2242</span> long x = a.getElementLongAbs(it.index);<a name="line.2242"></a> |
| <span class="sourceLineNo">2243</span><a name="line.2243"></a> |
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| <span class="sourceLineNo">2254</span> if (x == vh)<a name="line.2254"></a> |
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| <span class="sourceLineNo">2269</span> }<a name="line.2269"></a> |
| <span class="sourceLineNo">2270</span> }<a name="line.2270"></a> |
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| <span class="sourceLineNo">2273</span> i++;<a name="line.2273"></a> |
| <span class="sourceLineNo">2274</span> double x = a.getElementDoubleAbs(it.index);<a name="line.2274"></a> |
| <span class="sourceLineNo">2275</span><a name="line.2275"></a> |
| <span class="sourceLineNo">2276</span> int l = 0; // binary search to find value in sorted dataset<a name="line.2276"></a> |
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| <span class="sourceLineNo">2286</span> if (x == vh)<a name="line.2286"></a> |
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| <span class="sourceLineNo">2291</span> int m = (l + h) / 2;<a name="line.2291"></a> |
| <span class="sourceLineNo">2292</span> double vm = values.getDouble(m);<a name="line.2292"></a> |
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| <span class="sourceLineNo">2294</span> h = m;<a name="line.2294"></a> |
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| <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><a name="line.2304"></a> |
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| <span class="sourceLineNo">2307</span><a name="line.2307"></a> |
| <span class="sourceLineNo">2308</span> /**<a name="line.2308"></a> |
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| <span class="sourceLineNo">2311</span> * @param shift<a name="line.2311"></a> |
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| <span class="sourceLineNo">2315</span> public static <T extends Dataset> T roll(final T a, final int shift, Integer axis) {<a name="line.2315"></a> |
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| <span class="sourceLineNo">2321</span> int i = shift % s;<a name="line.2321"></a> |
| <span class="sourceLineNo">2322</span> if (i < 0)<a name="line.2322"></a> |
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| <span class="sourceLineNo">2324</span> while (it.hasNext()) {<a name="line.2324"></a> |
| <span class="sourceLineNo">2325</span> r.setObjectAbs(i, a.getObjectAbs(it.index));<a name="line.2325"></a> |
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| <span class="sourceLineNo">2327</span> if (i >= s) {<a name="line.2327"></a> |
| <span class="sourceLineNo">2328</span> i %= s;<a name="line.2328"></a> |
| <span class="sourceLineNo">2329</span> }<a name="line.2329"></a> |
| <span class="sourceLineNo">2330</span> }<a name="line.2330"></a> |
| <span class="sourceLineNo">2331</span> } else {<a name="line.2331"></a> |
| <span class="sourceLineNo">2332</span> axis = a.checkAxis(axis);<a name="line.2332"></a> |
| <span class="sourceLineNo">2333</span> PositionIterator pi = a.getPositionIterator(axis);<a name="line.2333"></a> |
| <span class="sourceLineNo">2334</span> int s = a.getShapeRef()[axis];<a name="line.2334"></a> |
| <span class="sourceLineNo">2335</span> Dataset u = DatasetFactory.zeros(is, a.getClass(), new int[] {s});<a name="line.2335"></a> |
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| <span class="sourceLineNo">2338</span> boolean[] hit = pi.getOmit();<a name="line.2338"></a> |
| <span class="sourceLineNo">2339</span> while (pi.hasNext()) {<a name="line.2339"></a> |
| <span class="sourceLineNo">2340</span> a.copyItemsFromAxes(pos, hit, u);<a name="line.2340"></a> |
| <span class="sourceLineNo">2341</span> int i = shift % s;<a name="line.2341"></a> |
| <span class="sourceLineNo">2342</span> if (i < 0)<a name="line.2342"></a> |
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| <span class="sourceLineNo">2344</span> for (int j = 0; j < s; j++) {<a name="line.2344"></a> |
| <span class="sourceLineNo">2345</span> v.setObjectAbs(i, u.getObjectAbs(j*is));<a name="line.2345"></a> |
| <span class="sourceLineNo">2346</span> i += is;<a name="line.2346"></a> |
| <span class="sourceLineNo">2347</span> if (i >= s) {<a name="line.2347"></a> |
| <span class="sourceLineNo">2348</span> i %= s;<a name="line.2348"></a> |
| <span class="sourceLineNo">2349</span> }<a name="line.2349"></a> |
| <span class="sourceLineNo">2350</span> }<a name="line.2350"></a> |
| <span class="sourceLineNo">2351</span> r.setItemsOnAxes(pos, hit, v.getBuffer());<a name="line.2351"></a> |
| <span class="sourceLineNo">2352</span> }<a name="line.2352"></a> |
| <span class="sourceLineNo">2353</span> }<a name="line.2353"></a> |
| <span class="sourceLineNo">2354</span> return (T) r;<a name="line.2354"></a> |
| <span class="sourceLineNo">2355</span> }<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> * Roll the specified axis backwards until it lies in given position<a name="line.2358"></a> |
| <span class="sourceLineNo">2359</span> * @param a<a name="line.2359"></a> |
| <span class="sourceLineNo">2360</span> * @param axis The rolled axis (index in shape array). Other axes are left unchanged in relative positions<a name="line.2360"></a> |
| <span class="sourceLineNo">2361</span> * @param start The position with it right of the destination of the rolled axis<a name="line.2361"></a> |
| <span class="sourceLineNo">2362</span> * @return dataset with rolled axis<a name="line.2362"></a> |
| <span class="sourceLineNo">2363</span> */<a name="line.2363"></a> |
| <span class="sourceLineNo">2364</span> public static <T extends Dataset> T rollAxis(final T a, int axis, int start) {<a name="line.2364"></a> |
| <span class="sourceLineNo">2365</span> int r = a.getRank();<a name="line.2365"></a> |
| <span class="sourceLineNo">2366</span> axis = a.checkAxis(axis);<a name="line.2366"></a> |
| <span class="sourceLineNo">2367</span> if (start < 0)<a name="line.2367"></a> |
| <span class="sourceLineNo">2368</span> start += r;<a name="line.2368"></a> |
| <span class="sourceLineNo">2369</span> if (start < 0 || start > r) {<a name="line.2369"></a> |
| <span class="sourceLineNo">2370</span> throw new IllegalArgumentException("Start is out of range: it should be >= 0 and <= " + r);<a name="line.2370"></a> |
| <span class="sourceLineNo">2371</span> }<a name="line.2371"></a> |
| <span class="sourceLineNo">2372</span> if (axis < start)<a name="line.2372"></a> |
| <span class="sourceLineNo">2373</span> start--;<a name="line.2373"></a> |
| <span class="sourceLineNo">2374</span><a name="line.2374"></a> |
| <span class="sourceLineNo">2375</span> if (axis == start)<a name="line.2375"></a> |
| <span class="sourceLineNo">2376</span> return a;<a name="line.2376"></a> |
| <span class="sourceLineNo">2377</span><a name="line.2377"></a> |
| <span class="sourceLineNo">2378</span> ArrayList<Integer> axes = new ArrayList<Integer>();<a name="line.2378"></a> |
| <span class="sourceLineNo">2379</span> for (int i = 0; i < r; i++) {<a name="line.2379"></a> |
| <span class="sourceLineNo">2380</span> if (i != axis) {<a name="line.2380"></a> |
| <span class="sourceLineNo">2381</span> axes.add(i);<a name="line.2381"></a> |
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| <span class="sourceLineNo">2383</span> }<a name="line.2383"></a> |
| <span class="sourceLineNo">2384</span> axes.add(start, axis);<a name="line.2384"></a> |
| <span class="sourceLineNo">2385</span> int[] aa = new int[r];<a name="line.2385"></a> |
| <span class="sourceLineNo">2386</span> for (int i = 0; i < r; i++) {<a name="line.2386"></a> |
| <span class="sourceLineNo">2387</span> aa[i] = axes.get(i);<a name="line.2387"></a> |
| <span class="sourceLineNo">2388</span> }<a name="line.2388"></a> |
| <span class="sourceLineNo">2389</span> return (T) a.getTransposedView(aa);<a name="line.2389"></a> |
| <span class="sourceLineNo">2390</span> }<a name="line.2390"></a> |
| <span class="sourceLineNo">2391</span><a name="line.2391"></a> |
| <span class="sourceLineNo">2392</span> private static SliceND createFlippedSlice(final Dataset a, int axis) {<a name="line.2392"></a> |
| <span class="sourceLineNo">2393</span> int[] shape = a.getShapeRef();<a name="line.2393"></a> |
| <span class="sourceLineNo">2394</span> SliceND slice = new SliceND(shape);<a name="line.2394"></a> |
| <span class="sourceLineNo">2395</span> slice.flip(axis);<a name="line.2395"></a> |
| <span class="sourceLineNo">2396</span> return slice;<a name="line.2396"></a> |
| <span class="sourceLineNo">2397</span> }<a name="line.2397"></a> |
| <span class="sourceLineNo">2398</span><a name="line.2398"></a> |
| <span class="sourceLineNo">2399</span> /**<a name="line.2399"></a> |
| <span class="sourceLineNo">2400</span> * Flip items in left/right direction, column-wise, or along second axis<a name="line.2400"></a> |
| <span class="sourceLineNo">2401</span> * @param a dataset must be at least 2D<a name="line.2401"></a> |
| <span class="sourceLineNo">2402</span> * @return view of flipped dataset<a name="line.2402"></a> |
| <span class="sourceLineNo">2403</span> */<a name="line.2403"></a> |
| <span class="sourceLineNo">2404</span> public static <T extends Dataset> T flipLeftRight(final T a) {<a name="line.2404"></a> |
| <span class="sourceLineNo">2405</span> if (a.getRank() < 2) {<a name="line.2405"></a> |
| <span class="sourceLineNo">2406</span> throw new IllegalArgumentException("Dataset must be at least 2D");<a name="line.2406"></a> |
| <span class="sourceLineNo">2407</span> }<a name="line.2407"></a> |
| <span class="sourceLineNo">2408</span> return (T) a.getSliceView(createFlippedSlice(a, 1));<a name="line.2408"></a> |
| <span class="sourceLineNo">2409</span> }<a name="line.2409"></a> |
| <span class="sourceLineNo">2410</span><a name="line.2410"></a> |
| <span class="sourceLineNo">2411</span> /**<a name="line.2411"></a> |
| <span class="sourceLineNo">2412</span> * Flip items in up/down direction, row-wise, or along first axis<a name="line.2412"></a> |
| <span class="sourceLineNo">2413</span> * @param a dataset<a name="line.2413"></a> |
| <span class="sourceLineNo">2414</span> * @return view of flipped dataset<a name="line.2414"></a> |
| <span class="sourceLineNo">2415</span> */<a name="line.2415"></a> |
| <span class="sourceLineNo">2416</span> public static <T extends Dataset> T flipUpDown(final T a) {<a name="line.2416"></a> |
| <span class="sourceLineNo">2417</span> return (T) a.getSliceView(createFlippedSlice(a, 0));<a name="line.2417"></a> |
| <span class="sourceLineNo">2418</span> }<a name="line.2418"></a> |
| <span class="sourceLineNo">2419</span><a name="line.2419"></a> |
| <span class="sourceLineNo">2420</span> /**<a name="line.2420"></a> |
| <span class="sourceLineNo">2421</span> * Rotate items in first two dimension by 90 degrees anti-clockwise<a name="line.2421"></a> |
| <span class="sourceLineNo">2422</span> * @param a dataset must be at least 2D<a name="line.2422"></a> |
| <span class="sourceLineNo">2423</span> * @return view of flipped dataset<a name="line.2423"></a> |
| <span class="sourceLineNo">2424</span> */<a name="line.2424"></a> |
| <span class="sourceLineNo">2425</span> public static <T extends Dataset> T rotate90(final T a) {<a name="line.2425"></a> |
| <span class="sourceLineNo">2426</span> return rotate90(a, 1);<a name="line.2426"></a> |
| <span class="sourceLineNo">2427</span> }<a name="line.2427"></a> |
| <span class="sourceLineNo">2428</span><a name="line.2428"></a> |
| <span class="sourceLineNo">2429</span> /**<a name="line.2429"></a> |
| <span class="sourceLineNo">2430</span> * Rotate items in first two dimension by 90 degrees anti-clockwise<a name="line.2430"></a> |
| <span class="sourceLineNo">2431</span> * @param a dataset must be at least 2D<a name="line.2431"></a> |
| <span class="sourceLineNo">2432</span> * @param k number of 90-degree rotations<a name="line.2432"></a> |
| <span class="sourceLineNo">2433</span> * @return view of flipped dataset<a name="line.2433"></a> |
| <span class="sourceLineNo">2434</span> */<a name="line.2434"></a> |
| <span class="sourceLineNo">2435</span> public static <T extends Dataset> T rotate90(final T a, int k) {<a name="line.2435"></a> |
| <span class="sourceLineNo">2436</span> k = k % 4;<a name="line.2436"></a> |
| <span class="sourceLineNo">2437</span> while (k < 0) {<a name="line.2437"></a> |
| <span class="sourceLineNo">2438</span> k += 4;<a name="line.2438"></a> |
| <span class="sourceLineNo">2439</span> }<a name="line.2439"></a> |
| <span class="sourceLineNo">2440</span> int r = a.getRank();<a name="line.2440"></a> |
| <span class="sourceLineNo">2441</span> if (r < 2) {<a name="line.2441"></a> |
| <span class="sourceLineNo">2442</span> throw new IllegalArgumentException("Dataset must be at least 2D");<a name="line.2442"></a> |
| <span class="sourceLineNo">2443</span> }<a name="line.2443"></a> |
| <span class="sourceLineNo">2444</span> switch (k) {<a name="line.2444"></a> |
| <span class="sourceLineNo">2445</span> case 1: case 3:<a name="line.2445"></a> |
| <span class="sourceLineNo">2446</span> int[] axes = new int[r];<a name="line.2446"></a> |
| <span class="sourceLineNo">2447</span> axes[0] = 1;<a name="line.2447"></a> |
| <span class="sourceLineNo">2448</span> axes[1] = 0;<a name="line.2448"></a> |
| <span class="sourceLineNo">2449</span> for (int i = 2; i < r; i++) {<a name="line.2449"></a> |
| <span class="sourceLineNo">2450</span> axes[i] = i;<a name="line.2450"></a> |
| <span class="sourceLineNo">2451</span> }<a name="line.2451"></a> |
| <span class="sourceLineNo">2452</span> Dataset t = a.getTransposedView(axes);<a name="line.2452"></a> |
| <span class="sourceLineNo">2453</span> return (T) t.getSliceView(createFlippedSlice(t, k == 1 ? 0 : 1));<a name="line.2453"></a> |
| <span class="sourceLineNo">2454</span> case 2:<a name="line.2454"></a> |
| <span class="sourceLineNo">2455</span> SliceND s = createFlippedSlice(a, 0);<a name="line.2455"></a> |
| <span class="sourceLineNo">2456</span> s.flip(1);<a name="line.2456"></a> |
| <span class="sourceLineNo">2457</span> return (T) a.getSliceView(s);<a name="line.2457"></a> |
| <span class="sourceLineNo">2458</span> default:<a name="line.2458"></a> |
| <span class="sourceLineNo">2459</span> case 0:<a name="line.2459"></a> |
| <span class="sourceLineNo">2460</span> return a;<a name="line.2460"></a> |
| <span class="sourceLineNo">2461</span> }<a name="line.2461"></a> |
| <span class="sourceLineNo">2462</span> }<a name="line.2462"></a> |
| <span class="sourceLineNo">2463</span><a name="line.2463"></a> |
| <span class="sourceLineNo">2464</span> /**<a name="line.2464"></a> |
| <span class="sourceLineNo">2465</span> * Select content according where condition is true. All inputs are broadcasted to a maximum shape<a name="line.2465"></a> |
| <span class="sourceLineNo">2466</span> * @param condition boolean dataset<a name="line.2466"></a> |
| <span class="sourceLineNo">2467</span> * @param x<a name="line.2467"></a> |
| <span class="sourceLineNo">2468</span> * @param y<a name="line.2468"></a> |
| <span class="sourceLineNo">2469</span> * @return dataset where content is x or y depending on whether condition is true or otherwise<a name="line.2469"></a> |
| <span class="sourceLineNo">2470</span> */<a name="line.2470"></a> |
| <span class="sourceLineNo">2471</span> public static Dataset select(BooleanDataset condition, Object x, Object y) {<a name="line.2471"></a> |
| <span class="sourceLineNo">2472</span> Object[] all = new Object[] {condition, x, y};<a name="line.2472"></a> |
| <span class="sourceLineNo">2473</span> Dataset[] dAll = BroadcastUtils.convertAndBroadcast(all);<a name="line.2473"></a> |
| <span class="sourceLineNo">2474</span> condition = (BooleanDataset) dAll[0];<a name="line.2474"></a> |
| <span class="sourceLineNo">2475</span> Dataset dx = dAll[1];<a name="line.2475"></a> |
| <span class="sourceLineNo">2476</span> Dataset dy = dAll[2];<a name="line.2476"></a> |
| <span class="sourceLineNo">2477</span> Class<? extends Dataset> dc = InterfaceUtils.getBestInterface(dx.getClass(), dy.getClass());<a name="line.2477"></a> |
| <span class="sourceLineNo">2478</span> int ds = Math.max(dx.getElementsPerItem(), dy.getElementsPerItem());<a name="line.2478"></a> |
| <span class="sourceLineNo">2479</span><a name="line.2479"></a> |
| <span class="sourceLineNo">2480</span> Dataset r = DatasetFactory.zeros(ds, dc, condition.getShapeRef());<a name="line.2480"></a> |
| <span class="sourceLineNo">2481</span> IndexIterator iter = condition.getIterator(true);<a name="line.2481"></a> |
| <span class="sourceLineNo">2482</span> final int[] pos = iter.getPos();<a name="line.2482"></a> |
| <span class="sourceLineNo">2483</span> int i = 0;<a name="line.2483"></a> |
| <span class="sourceLineNo">2484</span> while (iter.hasNext()) {<a name="line.2484"></a> |
| <span class="sourceLineNo">2485</span> r.setObjectAbs(i++, condition.getElementBooleanAbs(iter.index) ? dx.getObject(pos) : dy.getObject(pos));<a name="line.2485"></a> |
| <span class="sourceLineNo">2486</span> }<a name="line.2486"></a> |
| <span class="sourceLineNo">2487</span> return r;<a name="line.2487"></a> |
| <span class="sourceLineNo">2488</span> }<a name="line.2488"></a> |
| <span class="sourceLineNo">2489</span><a name="line.2489"></a> |
| <span class="sourceLineNo">2490</span> /**<a name="line.2490"></a> |
| <span class="sourceLineNo">2491</span> * Select content from choices where condition is true, otherwise use default. All inputs are broadcasted to a maximum shape<a name="line.2491"></a> |
| <span class="sourceLineNo">2492</span> * @param conditions array of boolean datasets<a name="line.2492"></a> |
| <span class="sourceLineNo">2493</span> * @param choices array of datasets or objects<a name="line.2493"></a> |
| <span class="sourceLineNo">2494</span> * @param def default value (can be a dataset)<a name="line.2494"></a> |
| <span class="sourceLineNo">2495</span> * @return dataset<a name="line.2495"></a> |
| <span class="sourceLineNo">2496</span> */<a name="line.2496"></a> |
| <span class="sourceLineNo">2497</span> public static Dataset select(BooleanDataset[] conditions, Object[] choices, Object def) {<a name="line.2497"></a> |
| <span class="sourceLineNo">2498</span> final int n = conditions.length;<a name="line.2498"></a> |
| <span class="sourceLineNo">2499</span> if (choices.length != n) {<a name="line.2499"></a> |
| <span class="sourceLineNo">2500</span> throw new IllegalArgumentException("Choices list is not same length as conditions list");<a name="line.2500"></a> |
| <span class="sourceLineNo">2501</span> }<a name="line.2501"></a> |
| <span class="sourceLineNo">2502</span> Object[] all = new Object[2*n];<a name="line.2502"></a> |
| <span class="sourceLineNo">2503</span> System.arraycopy(conditions, 0, all, 0, n);<a name="line.2503"></a> |
| <span class="sourceLineNo">2504</span> System.arraycopy(choices, 0, all, n, n);<a name="line.2504"></a> |
| <span class="sourceLineNo">2505</span> Dataset[] dAll = BroadcastUtils.convertAndBroadcast(all);<a name="line.2505"></a> |
| <span class="sourceLineNo">2506</span> conditions = new BooleanDataset[n];<a name="line.2506"></a> |
| <span class="sourceLineNo">2507</span> Dataset[] dChoices = new Dataset[n];<a name="line.2507"></a> |
| <span class="sourceLineNo">2508</span> System.arraycopy(dAll, 0, conditions, 0, n);<a name="line.2508"></a> |
| <span class="sourceLineNo">2509</span> System.arraycopy(dAll, n, dChoices, 0, n);<a name="line.2509"></a> |
| <span class="sourceLineNo">2510</span> Class<? extends Dataset> dc = null;<a name="line.2510"></a> |
| <span class="sourceLineNo">2511</span> int ds = -1;<a name="line.2511"></a> |
| <span class="sourceLineNo">2512</span> for (int i = 0; i < n; i++) {<a name="line.2512"></a> |
| <span class="sourceLineNo">2513</span> Dataset a = dChoices[i];<a name="line.2513"></a> |
| <span class="sourceLineNo">2514</span> Class<? extends Dataset> c = a.getClass();<a name="line.2514"></a> |
| <span class="sourceLineNo">2515</span> dc = InterfaceUtils.getBestInterface(dc, c);<a name="line.2515"></a> |
| <span class="sourceLineNo">2516</span> int s = a.getElementsPerItem();<a name="line.2516"></a> |
| <span class="sourceLineNo">2517</span> if (s > ds) {<a name="line.2517"></a> |
| <span class="sourceLineNo">2518</span> ds = s;<a name="line.2518"></a> |
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| <span class="sourceLineNo">2520</span> }<a name="line.2520"></a> |
| <span class="sourceLineNo">2521</span> if (dc == null || ds < 1) {<a name="line.2521"></a> |
| <span class="sourceLineNo">2522</span> throw new IllegalArgumentException("Dataset types of choices are invalid");<a name="line.2522"></a> |
| <span class="sourceLineNo">2523</span> }<a name="line.2523"></a> |
| <span class="sourceLineNo">2524</span><a name="line.2524"></a> |
| <span class="sourceLineNo">2525</span> Dataset r = DatasetFactory.zeros(ds, dc, conditions[0].getShapeRef());<a name="line.2525"></a> |
| <span class="sourceLineNo">2526</span> Dataset d = DatasetFactory.createFromObject(def).getBroadcastView(r.getShapeRef());<a name="line.2526"></a> |
| <span class="sourceLineNo">2527</span> PositionIterator iter = new PositionIterator(r.getShapeRef());<a name="line.2527"></a> |
| <span class="sourceLineNo">2528</span> final int[] pos = iter.getPos();<a name="line.2528"></a> |
| <span class="sourceLineNo">2529</span> int i = 0;<a name="line.2529"></a> |
| <span class="sourceLineNo">2530</span> while (iter.hasNext()) {<a name="line.2530"></a> |
| <span class="sourceLineNo">2531</span> int j = 0;<a name="line.2531"></a> |
| <span class="sourceLineNo">2532</span> for (; j < n; j++) {<a name="line.2532"></a> |
| <span class="sourceLineNo">2533</span> if (conditions[j].get(pos)) {<a name="line.2533"></a> |
| <span class="sourceLineNo">2534</span> r.setObjectAbs(i++, dChoices[j].getObject(pos));<a name="line.2534"></a> |
| <span class="sourceLineNo">2535</span> break;<a name="line.2535"></a> |
| <span class="sourceLineNo">2536</span> }<a name="line.2536"></a> |
| <span class="sourceLineNo">2537</span> }<a name="line.2537"></a> |
| <span class="sourceLineNo">2538</span> if (j == n) {<a name="line.2538"></a> |
| <span class="sourceLineNo">2539</span> r.setObjectAbs(i++, d.getObject(pos));<a name="line.2539"></a> |
| <span class="sourceLineNo">2540</span> }<a name="line.2540"></a> |
| <span class="sourceLineNo">2541</span> }<a name="line.2541"></a> |
| <span class="sourceLineNo">2542</span> return r;<a name="line.2542"></a> |
| <span class="sourceLineNo">2543</span> }<a name="line.2543"></a> |
| <span class="sourceLineNo">2544</span><a name="line.2544"></a> |
| <span class="sourceLineNo">2545</span> /**<a name="line.2545"></a> |
| <span class="sourceLineNo">2546</span> * Choose content from choices where condition is true, otherwise use default. All inputs are broadcasted to a maximum shape<a name="line.2546"></a> |
| <span class="sourceLineNo">2547</span> * @param index integer dataset (ideally, items should be in [0, n) range, if there are n choices)<a name="line.2547"></a> |
| <span class="sourceLineNo">2548</span> * @param choices array of datasets or objects<a name="line.2548"></a> |
| <span class="sourceLineNo">2549</span> * @param throwAIOOBE if true, throw array index out of bound exception<a name="line.2549"></a> |
| <span class="sourceLineNo">2550</span> * @param clip true to clip else wrap indices out of bounds; only used when throwAOOBE is false<a name="line.2550"></a> |
| <span class="sourceLineNo">2551</span> * @return dataset<a name="line.2551"></a> |
| <span class="sourceLineNo">2552</span> */<a name="line.2552"></a> |
| <span class="sourceLineNo">2553</span> public static Dataset choose(IntegerDataset index, Object[] choices, boolean throwAIOOBE, boolean clip) {<a name="line.2553"></a> |
| <span class="sourceLineNo">2554</span> final int n = choices.length;<a name="line.2554"></a> |
| <span class="sourceLineNo">2555</span> Object[] all = new Object[n + 1];<a name="line.2555"></a> |
| <span class="sourceLineNo">2556</span> System.arraycopy(choices, 0, all, 0, n);<a name="line.2556"></a> |
| <span class="sourceLineNo">2557</span> all[n] = index;<a name="line.2557"></a> |
| <span class="sourceLineNo">2558</span> Dataset[] dChoices = BroadcastUtils.convertAndBroadcast(all);<a name="line.2558"></a> |
| <span class="sourceLineNo">2559</span> Class<? extends Dataset> dc = null;<a name="line.2559"></a> |
| <span class="sourceLineNo">2560</span> int ds = -1;<a name="line.2560"></a> |
| <span class="sourceLineNo">2561</span> int mr = -1;<a name="line.2561"></a> |
| <span class="sourceLineNo">2562</span> for (int i = 0; i < n; i++) {<a name="line.2562"></a> |
| <span class="sourceLineNo">2563</span> Dataset a = dChoices[i];<a name="line.2563"></a> |
| <span class="sourceLineNo">2564</span> int r = a.getRank();<a name="line.2564"></a> |
| <span class="sourceLineNo">2565</span> if (r > mr) {<a name="line.2565"></a> |
| <span class="sourceLineNo">2566</span> mr = r;<a name="line.2566"></a> |
| <span class="sourceLineNo">2567</span> }<a name="line.2567"></a> |
| <span class="sourceLineNo">2568</span> dc = InterfaceUtils.getBestInterface(dc, a.getClass());<a name="line.2568"></a> |
| <span class="sourceLineNo">2569</span> int s = a.getElementsPerItem();<a name="line.2569"></a> |
| <span class="sourceLineNo">2570</span> if (s > ds) {<a name="line.2570"></a> |
| <span class="sourceLineNo">2571</span> ds = s;<a name="line.2571"></a> |
| <span class="sourceLineNo">2572</span> }<a name="line.2572"></a> |
| <span class="sourceLineNo">2573</span> }<a name="line.2573"></a> |
| <span class="sourceLineNo">2574</span> if (dc == null || ds < 1) {<a name="line.2574"></a> |
| <span class="sourceLineNo">2575</span> throw new IllegalArgumentException("Dataset types of choices are invalid");<a name="line.2575"></a> |
| <span class="sourceLineNo">2576</span> }<a name="line.2576"></a> |
| <span class="sourceLineNo">2577</span> index = (IntegerDataset) dChoices[n];<a name="line.2577"></a> |
| <span class="sourceLineNo">2578</span> dChoices[n] = null;<a name="line.2578"></a> |
| <span class="sourceLineNo">2579</span><a name="line.2579"></a> |
| <span class="sourceLineNo">2580</span> Dataset r = DatasetFactory.zeros(ds, dc, index.getShapeRef());<a name="line.2580"></a> |
| <span class="sourceLineNo">2581</span> IndexIterator iter = index.getIterator(true);<a name="line.2581"></a> |
| <span class="sourceLineNo">2582</span> final int[] pos = iter.getPos();<a name="line.2582"></a> |
| <span class="sourceLineNo">2583</span> int i = 0;<a name="line.2583"></a> |
| <span class="sourceLineNo">2584</span> while (iter.hasNext()) {<a name="line.2584"></a> |
| <span class="sourceLineNo">2585</span> int j = index.getAbs(iter.index);<a name="line.2585"></a> |
| <span class="sourceLineNo">2586</span> if (j < 0) {<a name="line.2586"></a> |
| <span class="sourceLineNo">2587</span> if (throwAIOOBE)<a name="line.2587"></a> |
| <span class="sourceLineNo">2588</span> throw new ArrayIndexOutOfBoundsException(j);<a name="line.2588"></a> |
| <span class="sourceLineNo">2589</span> if (clip) {<a name="line.2589"></a> |
| <span class="sourceLineNo">2590</span> j = 0;<a name="line.2590"></a> |
| <span class="sourceLineNo">2591</span> } else {<a name="line.2591"></a> |
| <span class="sourceLineNo">2592</span> j %= n;<a name="line.2592"></a> |
| <span class="sourceLineNo">2593</span> j += n; // as remainder still negative<a name="line.2593"></a> |
| <span class="sourceLineNo">2594</span> }<a name="line.2594"></a> |
| <span class="sourceLineNo">2595</span> }<a name="line.2595"></a> |
| <span class="sourceLineNo">2596</span> if (j >= n) {<a name="line.2596"></a> |
| <span class="sourceLineNo">2597</span> if (throwAIOOBE)<a name="line.2597"></a> |
| <span class="sourceLineNo">2598</span> throw new ArrayIndexOutOfBoundsException(j);<a name="line.2598"></a> |
| <span class="sourceLineNo">2599</span> if (clip) {<a name="line.2599"></a> |
| <span class="sourceLineNo">2600</span> j = n - 1;<a name="line.2600"></a> |
| <span class="sourceLineNo">2601</span> } else {<a name="line.2601"></a> |
| <span class="sourceLineNo">2602</span> j %= n;<a name="line.2602"></a> |
| <span class="sourceLineNo">2603</span> }<a name="line.2603"></a> |
| <span class="sourceLineNo">2604</span> }<a name="line.2604"></a> |
| <span class="sourceLineNo">2605</span> Dataset c = dChoices[j];<a name="line.2605"></a> |
| <span class="sourceLineNo">2606</span> r.setObjectAbs(i++, c.getObject(pos));<a name="line.2606"></a> |
| <span class="sourceLineNo">2607</span> }<a name="line.2607"></a> |
| <span class="sourceLineNo">2608</span> return r;<a name="line.2608"></a> |
| <span class="sourceLineNo">2609</span> }<a name="line.2609"></a> |
| <span class="sourceLineNo">2610</span><a name="line.2610"></a> |
| <span class="sourceLineNo">2611</span> /**<a name="line.2611"></a> |
| <span class="sourceLineNo">2612</span> * Calculate positions in given shape from a dataset of 1-D indexes<a name="line.2612"></a> |
| <span class="sourceLineNo">2613</span> * @param indices<a name="line.2613"></a> |
| <span class="sourceLineNo">2614</span> * @param shape<a name="line.2614"></a> |
| <span class="sourceLineNo">2615</span> * @return list of positions as integer datasets<a name="line.2615"></a> |
| <span class="sourceLineNo">2616</span> */<a name="line.2616"></a> |
| <span class="sourceLineNo">2617</span> public static List<IntegerDataset> calcPositionsFromIndexes(Dataset indices, int[] shape) {<a name="line.2617"></a> |
| <span class="sourceLineNo">2618</span> int rank = shape.length;<a name="line.2618"></a> |
| <span class="sourceLineNo">2619</span> List<IntegerDataset> posns = new ArrayList<IntegerDataset>();<a name="line.2619"></a> |
| <span class="sourceLineNo">2620</span> int[] iShape = indices.getShapeRef();<a name="line.2620"></a> |
| <span class="sourceLineNo">2621</span> for (int i = 0; i < rank; i++) {<a name="line.2621"></a> |
| <span class="sourceLineNo">2622</span> posns.add(new IntegerDataset(iShape));<a name="line.2622"></a> |
| <span class="sourceLineNo">2623</span> }<a name="line.2623"></a> |
| <span class="sourceLineNo">2624</span> IndexIterator it = indices.getIterator(true);<a name="line.2624"></a> |
| <span class="sourceLineNo">2625</span> int[] pos = it.getPos();<a name="line.2625"></a> |
| <span class="sourceLineNo">2626</span> while (it.hasNext()) {<a name="line.2626"></a> |
| <span class="sourceLineNo">2627</span> int n = indices.getInt(pos);<a name="line.2627"></a> |
| <span class="sourceLineNo">2628</span> int[] p = ShapeUtils.getNDPositionFromShape(n, shape);<a name="line.2628"></a> |
| <span class="sourceLineNo">2629</span> for (int i = 0; i < rank; i++) {<a name="line.2629"></a> |
| <span class="sourceLineNo">2630</span> posns.get(i).setItem(p[i], pos);<a name="line.2630"></a> |
| <span class="sourceLineNo">2631</span> }<a name="line.2631"></a> |
| <span class="sourceLineNo">2632</span> }<a name="line.2632"></a> |
| <span class="sourceLineNo">2633</span> return posns;<a name="line.2633"></a> |
| <span class="sourceLineNo">2634</span> }<a name="line.2634"></a> |
| <span class="sourceLineNo">2635</span><a name="line.2635"></a> |
| <span class="sourceLineNo">2636</span><a name="line.2636"></a> |
| <span class="sourceLineNo">2637</span> /**<a name="line.2637"></a> |
| <span class="sourceLineNo">2638</span> * Calculate indexes in given shape from datasets of position<a name="line.2638"></a> |
| <span class="sourceLineNo">2639</span> * @param positions as a list of datasets where each holds the position in a dimension<a name="line.2639"></a> |
| <span class="sourceLineNo">2640</span> * @param shape<a name="line.2640"></a> |
| <span class="sourceLineNo">2641</span> * @param mode either null, zero-length, unit length or length of rank of shape where<a name="line.2641"></a> |
| <span class="sourceLineNo">2642</span> * 0 = raise exception, 1 = wrap, 2 = clip<a name="line.2642"></a> |
| <span class="sourceLineNo">2643</span> * @return indexes as an integer dataset<a name="line.2643"></a> |
| <span class="sourceLineNo">2644</span> */<a name="line.2644"></a> |
| <span class="sourceLineNo">2645</span> public static IntegerDataset calcIndexesFromPositions(List<? extends Dataset> positions, int[] shape, int... mode) {<a name="line.2645"></a> |
| <span class="sourceLineNo">2646</span> int rank = shape.length;<a name="line.2646"></a> |
| <span class="sourceLineNo">2647</span> if (positions.size() != rank) {<a name="line.2647"></a> |
| <span class="sourceLineNo">2648</span> throw new IllegalArgumentException("Number of position datasets must be equal to rank of shape");<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> if (mode == null || mode.length == 0) {<a name="line.2651"></a> |
| <span class="sourceLineNo">2652</span> mode = new int[rank];<a name="line.2652"></a> |
| <span class="sourceLineNo">2653</span> } else if (mode.length == 1) {<a name="line.2653"></a> |
| <span class="sourceLineNo">2654</span> int m = mode[0];<a name="line.2654"></a> |
| <span class="sourceLineNo">2655</span> mode = new int[rank];<a name="line.2655"></a> |
| <span class="sourceLineNo">2656</span> Arrays.fill(mode, m);<a name="line.2656"></a> |
| <span class="sourceLineNo">2657</span> } else if (mode.length != rank) {<a name="line.2657"></a> |
| <span class="sourceLineNo">2658</span> throw new IllegalArgumentException("Mode length greater than one must match rank of shape");<a name="line.2658"></a> |
| <span class="sourceLineNo">2659</span> }<a name="line.2659"></a> |
| <span class="sourceLineNo">2660</span> for (int i = 0; i < rank; i++) {<a name="line.2660"></a> |
| <span class="sourceLineNo">2661</span> int m = mode[i];<a name="line.2661"></a> |
| <span class="sourceLineNo">2662</span> if (m < 0 || m > 2) {<a name="line.2662"></a> |
| <span class="sourceLineNo">2663</span> throw new IllegalArgumentException("Unknown mode value - it must be 0, 1, or 2");<a name="line.2663"></a> |
| <span class="sourceLineNo">2664</span> }<a name="line.2664"></a> |
| <span class="sourceLineNo">2665</span> }<a name="line.2665"></a> |
| <span class="sourceLineNo">2666</span><a name="line.2666"></a> |
| <span class="sourceLineNo">2667</span> Dataset p = positions.get(0);<a name="line.2667"></a> |
| <span class="sourceLineNo">2668</span> IntegerDataset indexes = new IntegerDataset(p.getShapeRef());<a name="line.2668"></a> |
| <span class="sourceLineNo">2669</span> IndexIterator it = p.getIterator(true);<a name="line.2669"></a> |
| <span class="sourceLineNo">2670</span> int[] iPos = it.getPos();<a name="line.2670"></a> |
| <span class="sourceLineNo">2671</span> int[] tPos = new int[rank];<a name="line.2671"></a> |
| <span class="sourceLineNo">2672</span> while (it.hasNext()) {<a name="line.2672"></a> |
| <span class="sourceLineNo">2673</span> for (int i = 0; i < rank; i++) {<a name="line.2673"></a> |
| <span class="sourceLineNo">2674</span> p = positions.get(i);<a name="line.2674"></a> |
| <span class="sourceLineNo">2675</span> int j = p.getInt(iPos);<a name="line.2675"></a> |
| <span class="sourceLineNo">2676</span> int d = shape[i];<a name="line.2676"></a> |
| <span class="sourceLineNo">2677</span> if (mode[i] == 0) {<a name="line.2677"></a> |
| <span class="sourceLineNo">2678</span> if (j < 0 || j >= d) {<a name="line.2678"></a> |
| <span class="sourceLineNo">2679</span> throw new ArrayIndexOutOfBoundsException("Position value exceeds dimension in shape");<a name="line.2679"></a> |
| <span class="sourceLineNo">2680</span> }<a name="line.2680"></a> |
| <span class="sourceLineNo">2681</span> } else if (mode[i] == 1) {<a name="line.2681"></a> |
| <span class="sourceLineNo">2682</span> while (j < 0)<a name="line.2682"></a> |
| <span class="sourceLineNo">2683</span> j += d;<a name="line.2683"></a> |
| <span class="sourceLineNo">2684</span> while (j >= d)<a name="line.2684"></a> |
| <span class="sourceLineNo">2685</span> j -= d;<a name="line.2685"></a> |
| <span class="sourceLineNo">2686</span> } else {<a name="line.2686"></a> |
| <span class="sourceLineNo">2687</span> if (j < 0)<a name="line.2687"></a> |
| <span class="sourceLineNo">2688</span> j = 0;<a name="line.2688"></a> |
| <span class="sourceLineNo">2689</span> if (j >= d)<a name="line.2689"></a> |
| <span class="sourceLineNo">2690</span> j = d - 1;<a name="line.2690"></a> |
| <span class="sourceLineNo">2691</span> }<a name="line.2691"></a> |
| <span class="sourceLineNo">2692</span> tPos[i] = j;<a name="line.2692"></a> |
| <span class="sourceLineNo">2693</span> }<a name="line.2693"></a> |
| <span class="sourceLineNo">2694</span> indexes.set(ShapeUtils.getFlat1DIndex(shape, tPos), iPos);<a name="line.2694"></a> |
| <span class="sourceLineNo">2695</span> }<a name="line.2695"></a> |
| <span class="sourceLineNo">2696</span><a name="line.2696"></a> |
| <span class="sourceLineNo">2697</span> return indexes;<a name="line.2697"></a> |
| <span class="sourceLineNo">2698</span> }<a name="line.2698"></a> |
| <span class="sourceLineNo">2699</span><a name="line.2699"></a> |
| <span class="sourceLineNo">2700</span> /**<a name="line.2700"></a> |
| <span class="sourceLineNo">2701</span> * Serialize dataset by flattening it. Discards metadata<a name="line.2701"></a> |
| <span class="sourceLineNo">2702</span> * @param data<a name="line.2702"></a> |
| <span class="sourceLineNo">2703</span> * @return some java array<a name="line.2703"></a> |
| <span class="sourceLineNo">2704</span> */<a name="line.2704"></a> |
| <span class="sourceLineNo">2705</span> public static Serializable serializeDataset(final IDataset data) {<a name="line.2705"></a> |
| <span class="sourceLineNo">2706</span> Dataset d = convertToDataset(data).getView(false);<a name="line.2706"></a> |
| <span class="sourceLineNo">2707</span> d.clearMetadata(null);<a name="line.2707"></a> |
| <span class="sourceLineNo">2708</span> return d.flatten().getBuffer();<a name="line.2708"></a> |
| <span class="sourceLineNo">2709</span> }<a name="line.2709"></a> |
| <span class="sourceLineNo">2710</span><a name="line.2710"></a> |
| <span class="sourceLineNo">2711</span> /**<a name="line.2711"></a> |
| <span class="sourceLineNo">2712</span> * Extract values where condition is non-zero. This is similar to Dataset#getByBoolean but supports broadcasting<a name="line.2712"></a> |
| <span class="sourceLineNo">2713</span> * @param data<a name="line.2713"></a> |
| <span class="sourceLineNo">2714</span> * @param condition should be broadcastable to data<a name="line.2714"></a> |
| <span class="sourceLineNo">2715</span> * @return 1-D dataset of values<a name="line.2715"></a> |
| <span class="sourceLineNo">2716</span> */<a name="line.2716"></a> |
| <span class="sourceLineNo">2717</span> public static Dataset extract(final IDataset data, final IDataset condition) {<a name="line.2717"></a> |
| <span class="sourceLineNo">2718</span> Dataset a = convertToDataset(data.getSliceView());<a name="line.2718"></a> |
| <span class="sourceLineNo">2719</span> Dataset b = cast(BooleanDataset.class, condition.getSliceView());<a name="line.2719"></a> |
| <span class="sourceLineNo">2720</span><a name="line.2720"></a> |
| <span class="sourceLineNo">2721</span> try {<a name="line.2721"></a> |
| <span class="sourceLineNo">2722</span> return a.getByBoolean(b);<a name="line.2722"></a> |
| <span class="sourceLineNo">2723</span> } catch (IllegalArgumentException e) {<a name="line.2723"></a> |
| <span class="sourceLineNo">2724</span> final int length = ((Number) b.sum()).intValue();<a name="line.2724"></a> |
| <span class="sourceLineNo">2725</span><a name="line.2725"></a> |
| <span class="sourceLineNo">2726</span> BroadcastPairIterator it = new BroadcastPairIterator(a, b, null, false);<a name="line.2726"></a> |
| <span class="sourceLineNo">2727</span> int size = ShapeUtils.calcSize(it.getShape());<a name="line.2727"></a> |
| <span class="sourceLineNo">2728</span> Dataset c;<a name="line.2728"></a> |
| <span class="sourceLineNo">2729</span> if (length < size) {<a name="line.2729"></a> |
| <span class="sourceLineNo">2730</span> int[] ashape = it.getFirstShape();<a name="line.2730"></a> |
| <span class="sourceLineNo">2731</span> int[] bshape = it.getSecondShape();<a name="line.2731"></a> |
| <span class="sourceLineNo">2732</span> int r = ashape.length;<a name="line.2732"></a> |
| <span class="sourceLineNo">2733</span> size = length;<a name="line.2733"></a> |
| <span class="sourceLineNo">2734</span> for (int i = 0; i < r; i++) {<a name="line.2734"></a> |
| <span class="sourceLineNo">2735</span> int s = ashape[i];<a name="line.2735"></a> |
| <span class="sourceLineNo">2736</span> if (s > 1 && bshape[i] == 1) {<a name="line.2736"></a> |
| <span class="sourceLineNo">2737</span> size *= s;<a name="line.2737"></a> |
| <span class="sourceLineNo">2738</span> }<a name="line.2738"></a> |
| <span class="sourceLineNo">2739</span> }<a name="line.2739"></a> |
| <span class="sourceLineNo">2740</span> }<a name="line.2740"></a> |
| <span class="sourceLineNo">2741</span> c = DatasetFactory.zeros(a.getClass(), size);<a name="line.2741"></a> |
| <span class="sourceLineNo">2742</span><a name="line.2742"></a> |
| <span class="sourceLineNo">2743</span> int i = 0;<a name="line.2743"></a> |
| <span class="sourceLineNo">2744</span> if (it.isOutputDouble()) {<a name="line.2744"></a> |
| <span class="sourceLineNo">2745</span> while (it.hasNext()) {<a name="line.2745"></a> |
| <span class="sourceLineNo">2746</span> if (it.bLong != 0) {<a name="line.2746"></a> |
| <span class="sourceLineNo">2747</span> c.setObjectAbs(i++, it.aDouble);<a name="line.2747"></a> |
| <span class="sourceLineNo">2748</span> }<a name="line.2748"></a> |
| <span class="sourceLineNo">2749</span> }<a name="line.2749"></a> |
| <span class="sourceLineNo">2750</span> } else {<a name="line.2750"></a> |
| <span class="sourceLineNo">2751</span> while (it.hasNext()) {<a name="line.2751"></a> |
| <span class="sourceLineNo">2752</span> if (it.bLong != 0) {<a name="line.2752"></a> |
| <span class="sourceLineNo">2753</span> c.setObjectAbs(i++, it.aLong);<a name="line.2753"></a> |
| <span class="sourceLineNo">2754</span> }<a name="line.2754"></a> |
| <span class="sourceLineNo">2755</span> }<a name="line.2755"></a> |
| <span class="sourceLineNo">2756</span> }<a name="line.2756"></a> |
| <span class="sourceLineNo">2757</span><a name="line.2757"></a> |
| <span class="sourceLineNo">2758</span> return c;<a name="line.2758"></a> |
| <span class="sourceLineNo">2759</span> }<a name="line.2759"></a> |
| <span class="sourceLineNo">2760</span> }<a name="line.2760"></a> |
| <span class="sourceLineNo">2761</span><a name="line.2761"></a> |
| <span class="sourceLineNo">2762</span> /**<a name="line.2762"></a> |
| <span class="sourceLineNo">2763</span> * Set shape to keep original rank<a name="line.2763"></a> |
| <span class="sourceLineNo">2764</span> * @param a<a name="line.2764"></a> |
| <span class="sourceLineNo">2765</span> * @param originalShape<a name="line.2765"></a> |
| <span class="sourceLineNo">2766</span> * @param axes<a name="line.2766"></a> |
| <span class="sourceLineNo">2767</span> * @since 2.2<a name="line.2767"></a> |
| <span class="sourceLineNo">2768</span> */<a name="line.2768"></a> |
| <span class="sourceLineNo">2769</span> public static void setShapeToOriginalRank(ILazyDataset a, int[] originalShape, int... axes) {<a name="line.2769"></a> |
| <span class="sourceLineNo">2770</span> a.setShape(ShapeUtils.getReducedShapeKeepRank(originalShape, axes));<a name="line.2770"></a> |
| <span class="sourceLineNo">2771</span> }<a name="line.2771"></a> |
| <span class="sourceLineNo">2772</span>}<a name="line.2772"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
