<p>No specific dataset needed; you can make a very simple csv:</p>

<pre><code>1, 2
3, 4
5, 6
</code></pre>

<p>Then, on the systems I've tried, I get</p>

<pre><code>$ bin/mlpack_allknn -r f.csv -v -k 3
[DEBUG] Compiled with debugging symbols.
[WARN ] Neither --neighbors_file nor --distances_file is specified, so the nearest neighbor search results will not be saved!
[INFO ] Loading 'f.csv' as CSV data.  Size is 2 x 3.
[INFO ] Loaded reference data from 'f.csv' (2 x 3).
[INFO ] Building reference tree...
[INFO ] Tree built.
[INFO ] Searching for 3 nearest neighbors with dual-tree kd-tree search...
[INFO ] 3 node combinations were scored.
[INFO ] 6 base cases were calculated.
[INFO ] Search complete.
pÛyg_neighbors
pÛyg_neighborsExecution parameters:
pÛyn parameter  distances_file: ""
pÛyn parameter  help: false
pÛyrameter  info: ""
pÛyrameter  input_model_file: ""
pÛydel_fileer  k: 3
pÛyfileer  leaf_size: 20
pÛyfileer  naive: false
pÛyfileer  neighbors_file: ""
pÛyfileer  output_model_file: ""
pÛyodel_filer  query_file: ""
pÛyodel_filer  random_basis: false
pÛyodel_filer  reference_file: f.csv
pÛyodel_filer  seed: 0
pÛy_filer  single_mode: false
pÛy_filer  tree_type: kd
pÛy_filer  verbose: true
pÛy_filer  version: false
pÛy_filer
pÛy_filerProgram timers:
pÛy_filer  computing_neighbors: 0.000053s
pÛyg_neighbors  loading_data: 0.000186s
pÛyg_neighbors  total_time: 0.001866s
pÛyg_neighbors  tree_building: 0.000051s
</code></pre>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br>Reply to this email directly or <a href="https://github.com/mlpack/mlpack/pull/521#issuecomment-188279136">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFOJXcbKp2VQnSuCuJ1j2eMnioB5Fks5pnbbAgaJpZM4HX7Db.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/mlpack/mlpack/pull/521#issuecomment-188279136"></link>
  <meta itemprop="name" content="View Pull Request"></meta>
</div>
<meta itemprop="description" content="View this Pull Request on GitHub"></meta>
</div>