r.io/pkg/SuperLearner/man/SuperLearner.html" class="external-link">SuperLearner</a></code> libraries.</p></li>
<li><p><strong>Doubly-Robust:</strong> Estimates are Doubly-Robust.</p></li>
<li><p><strong>Categorical groups:</strong> Currently only two groups in <code>variable</code> are allowed. Must be an integer variable only containing 0 and 1 or a factor variable with exactly two levels. If a factor variable is supplied, the first level is assumed to correspond to the control group.</p></li>
<li><p><stro