<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">edges</span><span class="p">[:,</span><span class="n">i</span><span class="p">],</span><span class="n">r</span><span class="p">[:,</span><span class="n">i</span><span class="p">]</span><span class="o">*</span><span class="mf">1.</span><span class="p">,</span><span class="n">color</span> <span class="o">=</span> <span class="n">grey</span><span class="p">,</span> <span class="n">marker</span> <