<p>In <a href="https://github.com/mlpack/mlpack/pull/708#discussion_r71839866">src/mlpack/core/tree/vantage_point_tree/vantage_point_tree_impl.hpp</a>:</p>
<pre style='color:#555'>> + * Return the number of points contained in this node.
> + */
> +template<typename MetricType,
> + typename StatisticType,
> + typename MatType,
> + template<typename BoundMetricType, typename...> class BoundType,
> + template<typename SplitBoundType, typename SplitMatType>
> + class SplitType>
> +inline size_t VantagePointTree<MetricType, StatisticType, MatType, BoundType,
> + SplitType>::NumPoints() const
> +{
> + // Each intermediate node contains exactly one point.
> + if (left && parent)
> + return 1;
> + else if(!parent)
> +        return 0;
</pre>
<p>Yeah, I'll fix the comment.</p>
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