distinct elements.</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>static java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../tech/v3/dataset/Reductions.html#setCardinalityUint32-java.lang.Object-">setCardinalityUint32</a></span>(java.lang.Object&nbsp;colname)</code>
<div class="block">Returns a distinct reducer that expects unsigned integer values and returns the number of distinct elements.</div>
</td>
</tr>
<tr id="i24" class="