"n">hpr</span> <span class="o">-</span> <span class="n">hpt</span>  


    <span class="n">dhp</span> <span class="o">=</span> <span class="n">dhp_</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
    <span class="n">dhp</span><span class="p">[</span><span class="n">np</span><span class="o">.</span><span class="n">where</span><span class="p">((</span><span class="n">dhp_</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">180</span><span class="p">)]