p + wt, data = mtcars)</code></pre>
<pre><code>##     am       hp     wt   cyl6   cyl8
##  2.167 -0.03115 -2.441 -4.218 -2.656</code></pre>
<p>Because a <code>"margins"</code> object is just a data frame, it is also possible to obtain the same result by subsetting the <em>output</em> of <code><a href="../reference/margins.html">margins()</a></code>:</p>
<div class="sourceCode"><pre class="sourceCode r"><code class="sourceCode r">m &lt;-<span class="st"> </span><span class="kw"><a href="../reference/margins.