s in weka.core.neighboursearch.balltrees">BallNode</a>&nbsp;child2,
         <a href="../../../../weka/core/Instances.html" title="class in weka.core">Instances</a>&nbsp;insts)</code>
<div class="block">Calculates the centroid pivot of a node based on its
 two child nodes (if merging two nodes).</div>
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<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><strong><a href="../../../../weka/core/neighboursearch/balltrees/BallNode.html#calcRadius(weka.c