n">hyv</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">vstack</span><span class="p">((</span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="n">hbincenters</span><span class="o">.</span><span class="n">shape</span><span class="p">),</span><span class="mf">1.4</span><span class="o">*</span><span class="n">scalef</span><span class="o">*</span><span class="n">np</span><span class="o">.</span><span