r" aria-label="anchor" href="#arg-maxt"></a></dt>
<dd><p>Maximum time to compute parametric estimates to.</p></dd>


<dt id="arg-newdata">newdata<a class="anchor" aria-label="anchor" href="#arg-newdata"></a></dt>
<dd><p>Data frame defining the subgroups to consider.  This must
have a column for each covariate in the model.  If omitted, then all
potential subgroups defined by combinations of factor covariates are
included.  Continuous covariates are not supported.</p></dd>

</dl></div>
    <div class="sectio