span class="s1">&#39;iris.csv&#39;</span><span class="p">)</span>
<span class="n">x</span> <span class="o">=</span> <span class="s1">&#39;sepal_width&#39;</span>
<span class="n">numeric_cols</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;sepal_width&#39;</span><span class="p">,</span> <span class="s1">&#39;sepal_length&#39;</span><span class="p">,</span> <span class="s1">&#39;petal_length&#39;</span><span class="p">,</span> <span class="s1">&#39;petal_width&#39;</span><span cl