an class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"dodgerblue"</span>,<span class="st">"orangered"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>   pch<span class="op">=</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="fl">20</span>,<span class="fl">18</span><span class="op">)</span>,</span></span>
<span class="r-in"><