class="co"># of the legend</span></span></span>
<span class="r-in"><span><span class="va">cols</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"8"</span> <span class="op">=</span> <span class="st">"red"</span>,<span class="st">"4"</span> <span class="op">=</span> <span class="st">"blue"</span>,<span class="st">"6"</span> <span class="op">=</span> <span class="st">"darkgreen"</span>, <spa