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<pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a>
<span class="sourceLineNo">002</span> *******************************************************************************<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (c) 2011, 2016 Diamond Light Source Ltd.<a name="line.3"></a>
<span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a>
<span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a>
<span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a>
<span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * Contributors:<a name="line.9"></a>
<span class="sourceLineNo">010</span> * Peter Chang - initial API and implementation and/or initial documentation<a name="line.10"></a>
<span class="sourceLineNo">011</span> *******************************************************************************/<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>package org.eclipse.january.dataset;<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.ArrayList;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.List;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>/**<a name="line.18"></a>
<span class="sourceLineNo">019</span> * Comparison and logical methods<a name="line.19"></a>
<span class="sourceLineNo">020</span> */<a name="line.20"></a>
<span class="sourceLineNo">021</span>public class Comparisons {<a name="line.21"></a>
<span class="sourceLineNo">022</span> /**<a name="line.22"></a>
<span class="sourceLineNo">023</span> * Compare item-wise for whether a's element is equal b's<a name="line.23"></a>
<span class="sourceLineNo">024</span> * &lt;p&gt;<a name="line.24"></a>
<span class="sourceLineNo">025</span> * For multi-element items, comparison is true if all elements in an item<a name="line.25"></a>
<span class="sourceLineNo">026</span> * are equal. Where the datasets have mismatched item sizes, the first element<a name="line.26"></a>
<span class="sourceLineNo">027</span> * of the dataset with smaller items is used for comparison.<a name="line.27"></a>
<span class="sourceLineNo">028</span> * @param a<a name="line.28"></a>
<span class="sourceLineNo">029</span> * @param b<a name="line.29"></a>
<span class="sourceLineNo">030</span> * @return dataset where item is true if {@code a == b}<a name="line.30"></a>
<span class="sourceLineNo">031</span> */<a name="line.31"></a>
<span class="sourceLineNo">032</span> public static BooleanDataset equalTo(Object a, Object b) {<a name="line.32"></a>
<span class="sourceLineNo">033</span> return equalTo(a, b, null);<a name="line.33"></a>
<span class="sourceLineNo">034</span> }<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span> /**<a name="line.36"></a>
<span class="sourceLineNo">037</span> * Compare item-wise for whether a's element is equal b's<a name="line.37"></a>
<span class="sourceLineNo">038</span> * &lt;p&gt;<a name="line.38"></a>
<span class="sourceLineNo">039</span> * For multi-element items, comparison is true if all elements in an item<a name="line.39"></a>
<span class="sourceLineNo">040</span> * are equal. Where the datasets have mismatched item sizes, the first element<a name="line.40"></a>
<span class="sourceLineNo">041</span> * of the dataset with smaller items is used for comparison.<a name="line.41"></a>
<span class="sourceLineNo">042</span> * @param a<a name="line.42"></a>
<span class="sourceLineNo">043</span> * @param b<a name="line.43"></a>
<span class="sourceLineNo">044</span> * @param o output can be null - in which case, a new dataset is created<a name="line.44"></a>
<span class="sourceLineNo">045</span> * @return dataset where item is true if {@code a == b}<a name="line.45"></a>
<span class="sourceLineNo">046</span> */<a name="line.46"></a>
<span class="sourceLineNo">047</span> public static BooleanDataset equalTo(Object a, Object b, BooleanDataset o) {<a name="line.47"></a>
<span class="sourceLineNo">048</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.48"></a>
<span class="sourceLineNo">049</span> final Dataset db = b instanceof Dataset ? (Dataset) b : DatasetFactory.createFromObject(b);<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> List&lt;int[]&gt; sl = BroadcastUtils.broadcastShapes(da.getShapeRef(), db.getShapeRef(), o == null ? null : o.getShapeRef());<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span> final BooleanDataset r = o == null ? DatasetFactory.zeros(BooleanDataset.class, sl.get(0)) : o;<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span> final BroadcastIterator it = BroadcastIterator.createIterator(da, db, r);<a name="line.55"></a>
<span class="sourceLineNo">056</span> final int as = da.getElementsPerItem();<a name="line.56"></a>
<span class="sourceLineNo">057</span> final int bs = db.getElementsPerItem();<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span> if (as &gt; bs) {<a name="line.59"></a>
<span class="sourceLineNo">060</span> if (da.isComplex()) {<a name="line.60"></a>
<span class="sourceLineNo">061</span> while (it.hasNext()) {<a name="line.61"></a>
<span class="sourceLineNo">062</span> final double bd = it.bDouble;<a name="line.62"></a>
<span class="sourceLineNo">063</span> boolean rb = it.aDouble == bd &amp;&amp; da.getElementDoubleAbs(it.aIndex + 1) == 0;<a name="line.63"></a>
<span class="sourceLineNo">064</span> r.setAbs(it.oIndex, rb);<a name="line.64"></a>
<span class="sourceLineNo">065</span> }<a name="line.65"></a>
<span class="sourceLineNo">066</span> } else if (it.isOutputDouble()) {<a name="line.66"></a>
<span class="sourceLineNo">067</span> while (it.hasNext()) {<a name="line.67"></a>
<span class="sourceLineNo">068</span> final double bd = it.bDouble;<a name="line.68"></a>
<span class="sourceLineNo">069</span> boolean rb = true;<a name="line.69"></a>
<span class="sourceLineNo">070</span> for (int j = 0; rb &amp;&amp; j &lt; as; j++) {<a name="line.70"></a>
<span class="sourceLineNo">071</span> rb &amp;= da.getElementDoubleAbs(it.aIndex + j) == bd;<a name="line.71"></a>
<span class="sourceLineNo">072</span> }<a name="line.72"></a>
<span class="sourceLineNo">073</span> r.setAbs(it.oIndex, rb);<a name="line.73"></a>
<span class="sourceLineNo">074</span> }<a name="line.74"></a>
<span class="sourceLineNo">075</span> } else {<a name="line.75"></a>
<span class="sourceLineNo">076</span> while (it.hasNext()) {<a name="line.76"></a>
<span class="sourceLineNo">077</span> final long bl = it.bLong;<a name="line.77"></a>
<span class="sourceLineNo">078</span> boolean rb = true;<a name="line.78"></a>
<span class="sourceLineNo">079</span> for (int j = 0; rb &amp;&amp; j &lt; as; j++) {<a name="line.79"></a>
<span class="sourceLineNo">080</span> rb &amp;= da.getElementLongAbs(it.aIndex + j) == bl;<a name="line.80"></a>
<span class="sourceLineNo">081</span> }<a name="line.81"></a>
<span class="sourceLineNo">082</span> r.setAbs(it.oIndex, rb);<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> } else if (as &lt; bs) {<a name="line.85"></a>
<span class="sourceLineNo">086</span> if (db.isComplex()) {<a name="line.86"></a>
<span class="sourceLineNo">087</span> while (it.hasNext()) {<a name="line.87"></a>
<span class="sourceLineNo">088</span> final double ad = it.aDouble;<a name="line.88"></a>
<span class="sourceLineNo">089</span> boolean rb = ad == it.bDouble &amp;&amp; 0 == db.getElementDoubleAbs(it.bIndex + 1);<a name="line.89"></a>
<span class="sourceLineNo">090</span> r.setAbs(it.oIndex, rb);<a name="line.90"></a>
<span class="sourceLineNo">091</span> }<a name="line.91"></a>
<span class="sourceLineNo">092</span> } else if (it.isOutputDouble()) {<a name="line.92"></a>
<span class="sourceLineNo">093</span> while (it.hasNext()) {<a name="line.93"></a>
<span class="sourceLineNo">094</span> final double ad = it.aDouble;<a name="line.94"></a>
<span class="sourceLineNo">095</span> boolean rb = true;<a name="line.95"></a>
<span class="sourceLineNo">096</span> for (int j = 0; rb &amp;&amp; j &lt; bs; j++) {<a name="line.96"></a>
<span class="sourceLineNo">097</span> rb &amp;= ad == db.getElementDoubleAbs(it.bIndex + j);<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span> r.setAbs(it.oIndex, rb);<a name="line.99"></a>
<span class="sourceLineNo">100</span> }<a name="line.100"></a>
<span class="sourceLineNo">101</span> } else {<a name="line.101"></a>
<span class="sourceLineNo">102</span> while (it.hasNext()) {<a name="line.102"></a>
<span class="sourceLineNo">103</span> final long al = it.aLong;<a name="line.103"></a>
<span class="sourceLineNo">104</span> boolean rb = true;<a name="line.104"></a>
<span class="sourceLineNo">105</span> for (int j = 0; rb &amp;&amp; j &lt; bs; j++) {<a name="line.105"></a>
<span class="sourceLineNo">106</span> rb &amp;= al == db.getElementLongAbs(it.bIndex + j);<a name="line.106"></a>
<span class="sourceLineNo">107</span> }<a name="line.107"></a>
<span class="sourceLineNo">108</span> r.setAbs(it.oIndex, rb);<a name="line.108"></a>
<span class="sourceLineNo">109</span> }<a name="line.109"></a>
<span class="sourceLineNo">110</span> }<a name="line.110"></a>
<span class="sourceLineNo">111</span> } else {<a name="line.111"></a>
<span class="sourceLineNo">112</span> if (as == 1) {<a name="line.112"></a>
<span class="sourceLineNo">113</span> if (it.isOutputDouble()) {<a name="line.113"></a>
<span class="sourceLineNo">114</span> while (it.hasNext()) {<a name="line.114"></a>
<span class="sourceLineNo">115</span> r.setAbs(it.oIndex, it.aDouble == it.bDouble);<a name="line.115"></a>
<span class="sourceLineNo">116</span> }<a name="line.116"></a>
<span class="sourceLineNo">117</span> } else {<a name="line.117"></a>
<span class="sourceLineNo">118</span> while (it.hasNext()) {<a name="line.118"></a>
<span class="sourceLineNo">119</span> r.setAbs(it.oIndex, it.aLong == it.bLong);<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span> }<a name="line.121"></a>
<span class="sourceLineNo">122</span> } else if (it.isOutputDouble()) {<a name="line.122"></a>
<span class="sourceLineNo">123</span> while (it.hasNext()) {<a name="line.123"></a>
<span class="sourceLineNo">124</span> boolean rb = true;<a name="line.124"></a>
<span class="sourceLineNo">125</span> for (int j = 0; rb &amp;&amp; j &lt; bs; j++) {<a name="line.125"></a>
<span class="sourceLineNo">126</span> rb &amp;= da.getElementDoubleAbs(it.aIndex + j) == db.getElementDoubleAbs(it.bIndex + j);<a name="line.126"></a>
<span class="sourceLineNo">127</span> }<a name="line.127"></a>
<span class="sourceLineNo">128</span> r.setAbs(it.oIndex, rb);<a name="line.128"></a>
<span class="sourceLineNo">129</span> }<a name="line.129"></a>
<span class="sourceLineNo">130</span> } else {<a name="line.130"></a>
<span class="sourceLineNo">131</span> while (it.hasNext()) {<a name="line.131"></a>
<span class="sourceLineNo">132</span> boolean rb = true;<a name="line.132"></a>
<span class="sourceLineNo">133</span> for (int j = 0; rb &amp;&amp; j &lt; bs; j++) {<a name="line.133"></a>
<span class="sourceLineNo">134</span> rb &amp;= da.getElementLongAbs(it.aIndex + j) == db.getElementLongAbs(it.bIndex + j);<a name="line.134"></a>
<span class="sourceLineNo">135</span> }<a name="line.135"></a>
<span class="sourceLineNo">136</span> r.setAbs(it.oIndex, rb);<a name="line.136"></a>
<span class="sourceLineNo">137</span> }<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
<span class="sourceLineNo">139</span> }<a name="line.139"></a>
<span class="sourceLineNo">140</span><a name="line.140"></a>
<span class="sourceLineNo">141</span> return r;<a name="line.141"></a>
<span class="sourceLineNo">142</span> }<a name="line.142"></a>
<span class="sourceLineNo">143</span><a name="line.143"></a>
<span class="sourceLineNo">144</span> /**<a name="line.144"></a>
<span class="sourceLineNo">145</span> * Compare item-wise for whether a's element is equal b's<a name="line.145"></a>
<span class="sourceLineNo">146</span> * &lt;p&gt;<a name="line.146"></a>
<span class="sourceLineNo">147</span> * For multi-element items, comparison is true if all elements in an item<a name="line.147"></a>
<span class="sourceLineNo">148</span> * are equal. Where the datasets have mismatched item sizes, the first element<a name="line.148"></a>
<span class="sourceLineNo">149</span> * of the dataset with smaller items is used for comparison.<a name="line.149"></a>
<span class="sourceLineNo">150</span> * @param a<a name="line.150"></a>
<span class="sourceLineNo">151</span> * @param b<a name="line.151"></a>
<span class="sourceLineNo">152</span> * @param relTolerance<a name="line.152"></a>
<span class="sourceLineNo">153</span> * @param absTolerance<a name="line.153"></a>
<span class="sourceLineNo">154</span> * @return dataset where item is true if {@code abs(a - b) &lt;= absTol + relTol*max(abs(a),abs(b))}<a name="line.154"></a>
<span class="sourceLineNo">155</span> */<a name="line.155"></a>
<span class="sourceLineNo">156</span> public static BooleanDataset almostEqualTo(Object a, Object b, double relTolerance, double absTolerance) {<a name="line.156"></a>
<span class="sourceLineNo">157</span> return almostEqualTo(a, b, null, relTolerance, absTolerance);<a name="line.157"></a>
<span class="sourceLineNo">158</span> }<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> /**<a name="line.160"></a>
<span class="sourceLineNo">161</span> * <a name="line.161"></a>
<span class="sourceLineNo">162</span> * @param a<a name="line.162"></a>
<span class="sourceLineNo">163</span> * @param b<a name="line.163"></a>
<span class="sourceLineNo">164</span> * @param relTol<a name="line.164"></a>
<span class="sourceLineNo">165</span> * @param absTol<a name="line.165"></a>
<span class="sourceLineNo">166</span> * @return true if {@code abs(a - b) &lt;= max(absTol, relTol*max(abs(a),abs(b)))}<a name="line.166"></a>
<span class="sourceLineNo">167</span> */<a name="line.167"></a>
<span class="sourceLineNo">168</span> public final static boolean isClose(double a, double b, double relTol, double absTol) {<a name="line.168"></a>
<span class="sourceLineNo">169</span> return Math.abs(a - b) &lt;= Math.max(absTol, relTol * Math.max(Math.abs(a), Math.abs(b)));<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> private final static boolean isCloseNP(double a, double b, double rt, double at) {<a name="line.172"></a>
<span class="sourceLineNo">173</span> return Math.abs(a - b) &lt;= at + rt * Math.max(Math.abs(a), Math.abs(b));<a name="line.173"></a>
<span class="sourceLineNo">174</span> }<a name="line.174"></a>
<span class="sourceLineNo">175</span><a name="line.175"></a>
<span class="sourceLineNo">176</span> private final static boolean isCloseNP(double a, double rt, double at) {<a name="line.176"></a>
<span class="sourceLineNo">177</span> double aa = Math.abs(a);<a name="line.177"></a>
<span class="sourceLineNo">178</span> return aa &lt;= at + rt * aa;<a name="line.178"></a>
<span class="sourceLineNo">179</span> }<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> * Compare item-wise for whether a's element is equal b's<a name="line.182"></a>
<span class="sourceLineNo">183</span> * &lt;p&gt;<a name="line.183"></a>
<span class="sourceLineNo">184</span> * For multi-element items, comparison is true if all elements in an item<a name="line.184"></a>
<span class="sourceLineNo">185</span> * are equal. Where the datasets have mismatched item sizes, the first element<a name="line.185"></a>
<span class="sourceLineNo">186</span> * of the dataset with smaller items is used for comparison.<a name="line.186"></a>
<span class="sourceLineNo">187</span> * @param a<a name="line.187"></a>
<span class="sourceLineNo">188</span> * @param b<a name="line.188"></a>
<span class="sourceLineNo">189</span> * @param o output can be null - in which case, a new dataset is created<a name="line.189"></a>
<span class="sourceLineNo">190</span> * @param relTolerance<a name="line.190"></a>
<span class="sourceLineNo">191</span> * @param absTolerance<a name="line.191"></a>
<span class="sourceLineNo">192</span> * @return dataset where item is true if {@code abs(a - b) &lt;= absTol + relTol*max(abs(a),abs(b))}<a name="line.192"></a>
<span class="sourceLineNo">193</span> */<a name="line.193"></a>
<span class="sourceLineNo">194</span> public static BooleanDataset almostEqualTo(Object a, Object b, BooleanDataset o, double relTolerance, double absTolerance) {<a name="line.194"></a>
<span class="sourceLineNo">195</span> final Dataset da = a instanceof Dataset ? (Dataset) a : DatasetFactory.createFromObject(a);<a name="line.195"></a>
<span class="sourceLineNo">196</span> final Dataset db = b instanceof Dataset ? (Dataset) b : DatasetFactory.createFromObject(b);<a name="line.196"></a>
<span class="sourceLineNo">197</span><a name="line.197"></a>
<span class="sourceLineNo">198</span> List&lt;int[]&gt; sl = BroadcastUtils.broadcastShapes(da.getShapeRef(), db.getShapeRef(), o == null ? null : o.getShapeRef());<a name="line.198"></a>
<span class="sourceLineNo">199</span><a name="line.199"></a>
<span class="sourceLineNo">200</span> final BooleanDataset r = o == null ? DatasetFactory.zeros(BooleanDataset.class, sl.get(0)) : o;<a name="line.200"></a>
<span class="sourceLineNo">201</span><a name="line.201"></a>
<span class="sourceLineNo">202</span> final BroadcastIterator it = BroadcastIterator.createIterator(da, db, r);<a name="line.202"></a>
<span class="sourceLineNo">203</span> it.setOutputDouble(true);<a name="line.203"></a>
<span class="sourceLineNo">204</span> final int as = da.getElementsPerItem();<a name="line.204"></a>
<span class="sourceLineNo">205</span> final int bs = db.getElementsPerItem();<a name="line.205"></a>
<span class="sourceLineNo">206</span><a name="line.206"></a>
<span class="sourceLineNo">207</span> if (as &gt; bs) {<a name="line.207"></a>
<span class="sourceLineNo">208</span> if (da.isComplex()) {<a name="line.208"></a>
<span class="sourceLineNo">209</span> while (it.hasNext()) {<a name="line.209"></a>
<span class="sourceLineNo">210</span> boolean rb = isCloseNP(it.aDouble, it.bDouble, relTolerance, absTolerance);<a name="line.210"></a>
<span class="sourceLineNo">211</span> if (rb) {<a name="line.211"></a>
<span class="sourceLineNo">212</span> rb = isCloseNP(da.getElementDoubleAbs(it.aIndex + 1), relTolerance, absTolerance);<a name="line.212"></a>
<span class="sourceLineNo">213</span> }<a name="line.213"></a>
<span class="sourceLineNo">214</span> r.setAbs(it.oIndex, rb);<a name="line.214"></a>
<span class="sourceLineNo">215</span> }<a name="line.215"></a>
<span class="sourceLineNo">216</span> } else {<a name="line.216"></a>
<span class="sourceLineNo">217</span> while (it.hasNext()) {<a name="line.217"></a>
<span class="sourceLineNo">218</span> final double bd = it.bDouble;<a name="line.218"></a>
<span class="sourceLineNo">219</span> boolean rb = true;<a name="line.219"></a>
<span class="sourceLineNo">220</span> for (int j = 0; rb &amp;&amp; j &lt; as; j++) {<a name="line.220"></a>
<span class="sourceLineNo">221</span> rb &amp;= isCloseNP(da.getElementDoubleAbs(it.aIndex + j), bd, relTolerance, absTolerance);<a name="line.221"></a>
<span class="sourceLineNo">222</span> }<a name="line.222"></a>
<span class="sourceLineNo">223</span> r.setAbs(it.oIndex, rb);<a name="line.223"></a>
<span class="sourceLineNo">224</span> }<a name="line.224"></a>
<span class="sourceLineNo">225</span> }<a name="line.225"></a>
<span class="sourceLineNo">226</span> } else if (as &lt; bs) {<a name="line.226"></a>
<span class="sourceLineNo">227</span> if (db.isComplex()) {<a name="line.227"></a>
<span class="sourceLineNo">228</span> while (it.hasNext()) {<a name="line.228"></a>
<span class="sourceLineNo">229</span> boolean rb = isCloseNP(it.aDouble, it.bDouble, relTolerance, absTolerance);<a name="line.229"></a>
<span class="sourceLineNo">230</span> if (rb) {<a name="line.230"></a>
<span class="sourceLineNo">231</span> rb = isCloseNP(db.getElementDoubleAbs(it.bIndex + 1), relTolerance, absTolerance);<a name="line.231"></a>
<span class="sourceLineNo">232</span> }<a name="line.232"></a>
<span class="sourceLineNo">233</span> r.setAbs(it.oIndex, rb);<a name="line.233"></a>
<span class="sourceLineNo">234</span> }<a name="line.234"></a>
<span class="sourceLineNo">235</span> } else {<a name="line.235"></a>
<span class="sourceLineNo">236</span> while (it.hasNext()) {<a name="line.236"></a>
<span class="sourceLineNo">237</span> final double ad = it.aDouble;<a name="line.237"></a>
<span class="sourceLineNo">238</span> boolean rb = true;<a name="line.238"></a>
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<span class="sourceLineNo">379</span> * of the dataset with smaller items is used for comparison.<a name="line.379"></a>
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<span class="sourceLineNo">381</span> * @param b<a name="line.381"></a>
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<span class="sourceLineNo">390</span> * &lt;p&gt;<a name="line.390"></a>
<span class="sourceLineNo">391</span> * For multi-element items, comparison is true if all elements in an item<a name="line.391"></a>
<span class="sourceLineNo">392</span> * are greater or equal. Where the datasets have mismatched item sizes, the first element<a name="line.392"></a>
<span class="sourceLineNo">393</span> * of the dataset with smaller items is used for comparison.<a name="line.393"></a>
<span class="sourceLineNo">394</span> * @param a<a name="line.394"></a>
<span class="sourceLineNo">395</span> * @param b<a name="line.395"></a>
<span class="sourceLineNo">396</span> * @param o output can be null - in which case, a new dataset is created<a name="line.396"></a>
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<span class="sourceLineNo">403</span> List&lt;int[]&gt; sl = BroadcastUtils.broadcastShapes(da.getShapeRef(), db.getShapeRef(), o == null ? null : o.getShapeRef());<a name="line.403"></a>
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<span class="sourceLineNo">405</span> final BooleanDataset r = o == null ? DatasetFactory.zeros(BooleanDataset.class, sl.get(0)) : o;<a name="line.405"></a>
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<span class="sourceLineNo">1262</span> if (rank == 0)<a name="line.1262"></a>
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<span class="sourceLineNo">1286</span> * Check item-wise for whether any a's elements are Not-a-Numbers<a name="line.1286"></a>
<span class="sourceLineNo">1287</span> * &lt;p&gt;<a name="line.1287"></a>
<span class="sourceLineNo">1288</span> * For multi-element items, check is true if any elements in an item is Not-a-Number.<a name="line.1288"></a>
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<span class="sourceLineNo">1299</span> * For multi-element items, check is true if any elements in an item is Not-a-Number.<a name="line.1299"></a>
<span class="sourceLineNo">1300</span> * @param a<a name="line.1300"></a>
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<span class="sourceLineNo">1307</span> List&lt;int[]&gt; sl = BroadcastUtils.broadcastShapes(da.getShapeRef(), o == null ? null : o.getShapeRef());<a name="line.1307"></a>
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<span class="sourceLineNo">1309</span> final BooleanDataset r = o == null ? DatasetFactory.zeros(BooleanDataset.class, sl.get(0)) : o;<a name="line.1309"></a>
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<span class="sourceLineNo">1347</span> * For multi-element items, check is true if any elements in an item is infinite<a name="line.1347"></a>
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<span class="sourceLineNo">1366</span> List&lt;int[]&gt; sl = BroadcastUtils.broadcastShapes(da.getShapeRef(), o == null ? null : o.getShapeRef());<a name="line.1366"></a>
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<span class="sourceLineNo">1368</span> final BooleanDataset r = o == null ? DatasetFactory.zeros(BooleanDataset.class, sl.get(0)) : o;<a name="line.1368"></a>
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<span class="sourceLineNo">1379</span> final int as = da.getElementsPerItem();<a name="line.1379"></a>
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