<p>In <a href="https://github.com/mlpack/mlpack/pull/708#discussion_r71805226">src/mlpack/core/tree/vantage_point_tree/vantage_point_split.hpp</a>:</p>
<pre style='color:#555'>> + */
> + static const size_t maxNumSamples = 100;
> +
> + template<typename StructElemType>
> + struct SortStruct
> + {
> + size_t point;
> + ElemType dist;
> + };
> +
> + template<typename StructElemType>
> + static bool StructComp(const SortStruct<StructElemType>& s1,
> + const SortStruct<StructElemType>& s2)
> + {
> + return (s1.dist < s2.dist);
> + };
</pre>
<p>Should we use <code>std::pair<size_t, ElemType></code> here too, like in the RectangleTree code?</p>
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