n>

<span class="co"># plot some test data (?kcs20 for details)</span>
<span class="co"># Drosophila Kenyon cells processed from raw data at http://flycircuit.tw</span>
<span class="fu"><a href="reference/neuronlist-dataframe-methods.html">head</a></span><span class="op">(</span><span class="va">kcs20</span><span class="op">)</span>
<span class="fu">open3d</span><span class="op">(</span><span class="op">)</span>
<span class="fu"><a href="reference/plot3d.html">plot3d</a></span><span class="op">(</span><span