ass="n">rename</span><span class="p">(</span>
  <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span> <span class="p">:</span> <span class="n">choice</span> <span class="o">+</span> <span class="s1">&#39; Frequency&#39;</span><span class="p">,</span> <span class="mi">1</span> <span class="p">:</span> <span class="n">choice</span> <span class="o">+</span> <span class="s1">&#39; Density&#39;</span><span class="p">})</span>
  <span class="n">fig</span> <span 