<p><b>@akanuraj200</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/mlpack/mlpack/pull/799#pullrequestreview-6806837">src/mlpack/methods/fastmks/fastmks_impl.hpp</a>:</p>
<pre style='color:#555'>&gt;  
   if (treeOwner &amp;&amp; referenceTree)
     delete referenceTree;
+    
+  referenceTree = new Tree(tree);    
+  referenceSet = &amp;tree-&gt;Dataset();
+  metric = metric::IPMetric&lt;KernelType&gt;(tree-&gt;Metric().Kernel());
</pre>
<p><code>metric = metric::IPMetric&lt;KernelType&gt;(tree.Metric().Kernel());</code></p>

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