lass="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co"># Define key variables for rbmi</span></span>
<span><span class="va">vars</span> <span class="op">&lt;-</span> <span class="fu">rbmi</span><span class="fu">::</span><span class="fu"><a href="https://insightsengineering.github.io/rbmi/reference/set_vars.html" class="external-link">set_vars</a></span><span class="op">(</span></span>
<span>    subjid <span class="op">=</span> <span class="st">"USUBJID"</span>,</span>
<span>    visit