 class="r-in"><span><span class="va">p</span> <span class="op">&lt;-</span> <span class="fu">show_forest</span><span class="op">(</span><span class="va">lung</span>,</span></span>
<span class="r-in"><span>  covariates <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"sex"</span>, <span class="st">"ph.ecog"</span><span class="op">)</span>, controls <span class="op">=</span> <span class="st">"age"</sp