<p>In <a href="https://github.com/mlpack/mlpack/pull/684#discussion_r66666744">src/mlpack/methods/neighbor_search/sort_policies/nearest_neighbor_sort.hpp</a>:</p>
<pre style='color:#555'>&gt; @@ -150,6 +150,21 @@ class NearestNeighborSort
&gt;        return DBL_MAX;
&gt;      return a + b;
&gt;    }
&gt; +
&gt; +  /**
&gt; +   * Return the given value relaxed.
&gt; +   *
&gt; +   * @param value Value to relax.
&gt; +   * @param epsilon Relative error (non-negative).
&gt; +   *
&gt; +   * @return double Value relaxed.
&gt; +   */
&gt; +  static inline double Relax(const double value, const double epsilon)
&gt; +  {
&gt; +    if (value == DBL_MAX)
&gt; +      return DBL_MAX;
&gt; +    return (1 / (1 + epsilon)) * value;
</pre>
<p>I realize also, the comment I made was on the wrong file, it should have been made on <code>furthest_neighbor_sort.hpp</code>, sorry about that (but I think that you guys have realized my comment was in the wrong place :)).</p>

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