<p>In <a href="https://github.com/mlpack/mlpack/pull/747#discussion_r75039714">src/mlpack/tests/knn_test.cpp</a>:</p>
<pre style='color:#555'>&gt; + * nodes, and backtracking in non-overlapping nodes) against the naive method.
&gt; + * This uses only a random reference dataset.
&gt; + */
&gt; +BOOST_AUTO_TEST_CASE(HybridSpillSearchTest)
&gt; +{
&gt; +  arma::mat dataset;
&gt; +  dataset.randu(50, 300); // 50 dimensional, 300 points.
&gt; +
&gt; +  const size_t k = 3;
&gt; +
&gt; +  KNN naive(dataset);
&gt; +  arma::Mat&lt;size_t&gt; neighborsNaive;
&gt; +  arma::mat distancesNaive;
&gt; +  naive.Search(dataset, k, neighborsNaive, distancesNaive);
&gt; +
&gt; +  double max_dist = 0;
</pre>
<p>Done in: <a href="https://github.com/mlpack/mlpack/pull/747/commits/ac5f836691b619c679b23c9fe37eecc0c7b00038" class="commit-link"><tt>ac5f836</tt></a></p>

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