library(tidyverse)</span></a>
<a class="sourceLine" id="cb3-3" data-line-number="3"><span class="co">#&gt; library(rms)</span></a>
<a class="sourceLine" id="cb3-4" data-line-number="4"><span class="co">#&gt; </span></a>
<a class="sourceLine" id="cb3-5" data-line-number="5"><span class="co">#&gt; starwars %&gt;%</span></a>
<a class="sourceLine" id="cb3-6" data-line-number="6"><span class="co">#&gt;   mutate(bmi = mass / ((height / 100) ^ 2)) %&gt;%</span></a>
<a class="sourceLine" id="cb3-7" data-line-number