<p>In <a href="https://github.com/mlpack/mlpack/pull/683#discussion_r66481867">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>&gt; +  }
&gt; +}
&gt; +
&gt; +//just a helper function, can&#39;t use it for anything else
&gt; +//finds max numbers on cube axis and returns max values,
&gt; +// also stores the locations of max values in Location
&gt; +template&lt;typename MatType, typename CubeType&gt;
&gt; +MatType StructuredForests&lt;MatType, CubeType&gt;::
&gt; +MaxAndLoc(CubeType&amp; mag, arma::umat&amp; Location)
&gt; +{
&gt; +  MatType MaxVal(Location.n_rows, Location.n_cols);
&gt; +  for(size_t i = 0; i &lt; mag.n_rows; ++i)
&gt; +  {
&gt; +    for(size_t j = 0; j &lt; mag.n_cols; ++j)
&gt; +    {
&gt; +      double max = -9999999999.0; int max_loc = 0;
</pre>
<p>It is unused and can be removed.</p>

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