ass="methodSignature">public&nbsp;<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;&nbsp;select&#8203;(boolean[]&nbsp;select,
                       int&nbsp;nTrue)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="Array.html#select(boolean%5B%5D,int)">Array</a></code></span></div>
<div class="block">Slice out the true indices in the selec