ss="s1">&#39;-&#39;</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">label</span><span class="o">=</span><span class="s2">&quot;Primordial BBH Ken2022&quot;</span><span class="p">)</span>
<span class="c1"># labels</span>
<span class="n">plt</span><span class="o">.</span><span class="n">xlabel</span><span class="p">(</span><span class="s2">&quot;z&quot;</span><span class="p">)</span>
<span class="n">plt</spa