ss="colFirst"><code>static java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../tech/v3/dataset/Reductions.html#probSetCardinality-java.lang.Object-java.util.Map-">probSetCardinality</a></span>(java.lang.Object&nbsp;colname,
                  java.util.Map&nbsp;options)</code>
<div class="block">Calculate a probabilistic set cardinality for a given column based on one of three algorithms.</div>
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