span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span class='op'>(</span><span class='fl'>19</span>,<span class='fl'>19</span>,<span class='fl'>19</span><span class='op'>)</span>, cex<span class='op'>=</span><span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span class='op'>(</span><span class='fl'>1.5</span>,<span class='fl'>1.5</span>,<span class='fl'>1.5</span><span class='op'>)</span>, 
       col<span class='op'>=</span><span class='fu'><a href='https://rdrr.io/r/