="n">TopkDF</span> <span class="o">=</span> <span class="n">TopkDF</span><span class="o">.</span><span class="n">iloc</span><span class="p">[:,</span> <span class="n">startBandTopkDF</span><span class="p">:]</span>

        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">TrainDF</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="bp">self</span>