pan> <span class="op">+</span> <span class="va">delta</span> <span class="op">*</span> <span class="va">trt</span></span>
<span class="r-in"></span>
<span class="r-in"><span class="co"># continuous outcomes</span></span>
<span class="r-in"><span class="va">y</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/drop.html" class="external-link">drop</a></span><span class="op">(</span><span class="va">xbeta</span><span class="op">)</span> <span class="op">+</span> <span class="