>.</span><span class="n">drop</span><span class="p">([</span><span class="s">&#39;volume&#39;</span><span class="p">],</span><span class="n">axis</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
        <span class="n">plt_obj</span> <span class="o">=</span> <span class="n">df</span><span class="o">.</span><span class="n">plot</span><span class="p">()</span>
        <span class="n">plt_obj</span><span class="o">.</span><span class="n">set_ylabel</span><span class="p">(</span><