Reductions.html#mean-java.lang.Object-">mean</a></span>(java.lang.Object&nbsp;colname)</code>
<div class="block">Returns a mean reducer that produces a mean value of an individual source column.</div>
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<td class="colFirst"><code>static java.lang.Object</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../tech/v3/dataset/Reductions.html#probCDFS-java.lang.Object-java.lang.Object-">probCDFS</a></span>(java.lang.Object&nbsp;colname,
     