 class="n">label</span><span class="o">=</span><span class="s2">&quot;Observed&quot;</span><span class="p">)</span>
            <span class="n">ax</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span><span class="o">.</span><span class="n">legend</span><span class="p">()</span>

            <span class="n">ax</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span><span class="o">.</span><span class="n">set_title</span><span class="p">(</span><span class="s2"