ass="n">plot</span><span class="p">(</span><span class="n">geo</span><span class="p">,</span> <span class="n">v1</span><span class="p">[</span><span class="n">ts</span><span class="p">]</span><span class="o">/</span><span class="mf">1e5</span><span class="p">,</span> <span class="s1">&#39;r&#39;</span><span class="p">)</span>
    <span class="n">ax1</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
    <span class="n">ax1</