<p>In <a href="https://github.com/mlpack/mlpack/pull/696#discussion_r67196196">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>&gt; +{
&gt; +
&gt; +}
&gt; +
&gt; +template&lt;typename MatType, typename CubeType&gt;
&gt; +MatType StructuredForests&lt;MatType, CubeType&gt;::
&gt; +LoadData(MatType const &amp;images, MatType const &amp;boundaries,\
&gt; +     MatType const &amp;segmentations)
&gt; +{
&gt; +  const size_t num_images = this-&gt;options[&quot;num_images&quot;];
&gt; +  const size_t row_size = this-&gt;options[&quot;row_size&quot;];
&gt; +  const size_t col_size = this-&gt;options[&quot;col_size&quot;];
&gt; +  MatType input_data(num_images * row_size * 5, col_size);
&gt; +  // we store the input data as follows: 
&gt; +  // images (3), boundaries (1), segmentations (1).
&gt; +  size_t loop_iter = num_images * 5;
</pre>
<p>There is no good reason. I should remove the LoadData() function all together.</p>

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