ows,
       boolean&nbsp;cast,
       boolean&nbsp;ignore,
       int&nbsp;k)</code></th>
<td class="colLast">
<div class="block">CP rexpand operation (single input, single output), the classic example of this operation is one hot encoding of a
 column to multiple columns.</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>static <a href="MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a></code></td>
<th class="colSecond" scope="row"><code><span 