nline and apply it to each set of coordinates, assigning the resulting object globally so it can be accessed later. Now we have the coordinates of the polygons in plot units! So we can close the expression after returning the plot.</p>
<div class="sourceCode" id="cb7"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>  <span class="co"># Define the x and y axis limits in grid coordinates (old) and plot</span></span>
<span id="cb7-2"><