pan class="n">data</span><span class="o">.</span><span class="n">loc</span><span class="p">[(</span><span class="n">data</span><span class="o">.</span><span class="n">cor_option</span> <span class="o">==</span> <span class="mi">3</span><span class="p">)</span> <span class="o">&amp;</span> <span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">inc_option</span> <span class="o">==</span> <span class="mi">1</span><span class="p">),</span> <span class="s1">&#39;choice_pair&#3