xternal-link">require</a></span><span class="op">(</span><span class="va"><a href="https://github.com/lme4/lme4/" class="external-link">lme4</a></span><span class="op">)</span></span>
<span>  <span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">require</a></span><span class="op">(</span><span class="va"><a href="https://github.com/bbolker/broom.mixed" class="external-link">broom.mixed</a></span><span class="op">)</span></span>
<span>  <span class="va">slopevars</span> <span c