 class="n">high</span><span class="o">=</span><span class="mf">8.0</span><span class="p">))</span>

        <span class="n">chr_only</span> <span class="o">=</span>  <span class="p">(</span><span class="n">mol_info</span><span class="p">[:,</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="nb">chr</span><span class="p">)</span>
        <span class="n">xyz_chr</span><span class="p">[</span><span class="n">chr_only</span><span class="p">,:]</span> <span class="o">+