><span class="memberNameLink"><a href="#select(boolean%5B%5D,int)">select</a></span>&#8203;(boolean[]&nbsp;select,
      int&nbsp;nTrue)</code></th>
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<div class="block">Slice out the true indices in the select input and return the sub array.</div>
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<tr id="i33" class="rowColor">
<td class="colFirst"><code><a href="Array.html" title="class in org.apache.sysds.runtime.frame.data.columns">Array</a>&lt;<a href="DDCArray.html" title="type parameter in DDCArray">T</a>&gt;</code></td