<code>-1</code>
should be the first term included.</p></dd>


<dt id="arg-subject">subject<a class="anchor" aria-label="anchor" href="#arg-subject"></a></dt>
<dd><p>name of the covariate representing the grouping structure
specified with ”.</p></dd>


<dt id="arg-classmb">classmb<a class="anchor" aria-label="anchor" href="#arg-classmb"></a></dt>
<dd><p>optional one-sided formula describing the covariates in the
class-membership multinomial logistic model. Covariates included are
separated by <code>+</code