ef="../../preprocessing.html#Foresight.preprocessing.column_rename">[docs]</a><span class="k">def</span> <span class="nf">column_rename</span><span class="p">(</span><span class="n">universe_dict</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;Appends the name of the instrument to the columns.</span>
<span class="sd">    To help keep track of the instruments in the full dataset.</span>

<span class="sd">    :param universe_dict:               The dictionary of time series</span>
<span