pan class="p">(</span><span class="n">hbincenters</span><span class="o">.</span><span class="n">shape</span><span class="p">),</span><span class="n">dL</span><span class="p">))</span> <span class="c1"># setup hue bin edges array</span>
        
        <span class="k">if</span> <span class="n">axtype</span> <span class="o">==</span> <span class="s1">&#39;cart&#39;</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">plot_center_lines</span> <span class="o">==</span> <span cla