luding MEMs and/or AMEs at observed or specified values) on subsets of the original data (e.g., the marginal effect of a treatment separately for men and women)</li>
</ul>
<p>The <code>at</code> argument has been translated into <code><a href="../reference/margins.html">margins()</a></code> in a very similar manner. It can be used by specifying a list of variable names and specified values for those variables at which to calculate marginal effects, such as <code><a href="../reference/margins.html">margins(x