pha)</code>
<div class="block">Prunes a logistic model tree using the CART pruning scheme, given a 
 cost-complexity parameter alpha.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../weka/classifiers/trees/lmt/LMTNode.html#prune(double[],%20double[],%20weka.core.Instances)">prune</a></strong>(double[]&nbsp;alphas,
     double[]&nbsp;errors,
     <a href="../../../../weka/core/Instances.html" title="class in weka.core">I