               <span class="s1">&#39;min_class_size&#39;</span><span class="p">,</span> <span class="s1">&#39;max_class_size&#39;</span><span class="p">,</span> <span class="s1">&#39;dept&#39;</span><span class="p">,</span> <span class="s1">&#39;subject&#39;</span><span class="p">,</span>
                <span class="s1">&#39;ay&#39;</span><span class="p">]</span>

    <span class="k">return</span> <span class="n">df</span><span class="p">,</span> <span class="n">ptr</span></div>


<div class="viewcode-bloc