s="st">"shade"</span>, 
      <span class="dt">draw =</span> <span class="st">"add"</span>)</code></pre></div>
<p><img src="Introduction_files/figure-html/unnamed-chunk-24-1.png" width="768"></p>
<p><code><a href="../reference/cplot.html">cplot()</a></code> only provides AME displays over the observed range of the data (noted by the rug), so we can see that it would be inappropriate to compare the average marginal effect of axle ratio for the two transmission types at extreme values of weight.</p>
<p>Anothe