lt;T&gt;&nbsp;<a href="Array.html" title="class in org.apache.sysds.runtime.frame.data.columns">Array</a>&lt;T&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compressToDDC(org.apache.sysds.runtime.frame.data.columns.Array,int)">compressToDDC</a></span>&#8203;(<a href="Array.html" title="class in org.apache.sysds.runtime.frame.data.columns">Array</a>&lt;T&gt;&nbsp;arr,
             int&nbsp;estimateUnique)</code></th>
<td class="colLast">
<div class="block">Try