l" class="external-link">heat.colors</a></span><span class="op">(</span><span class="fl">12</span><span class="op">)</span>,</span>
<span>  breaks <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/pretty.html" class="external-link">pretty</a></span><span class="op">(</span><span class="va">zlim</span><span class="op">)</span>,</span>
<span>  horiz <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span>  ylim <span class="op">=</span> <span class="cn">NULL</span>,</span