class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $overall.subgroup.effect</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] 11.86083</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-in"></span>
<span class="r-in"><span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a></span><span class="op">(</span><span class="va">subgrp.model</span><span class="op">)</span></span>
<spa