mi">2</span><span class="p">,</span> <span class="n">startBandTopkDF</span> <span class="o">=</span> <span class="mi">2</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">TrainDF</span> <span class="o">=</span> <span class="n">TrainDF</span><span class="o">.</span><span class="n">iloc</span><span class="p">[:,</span> <span class="n">startBandTrainDF</span><span class="p">:]</span>
        <span class="bp">self</span><span class="o">.</span><span class