<a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"CHE"</span>, <span class="st">"MLMA"</span>, <span class="st">"CE"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>   var_df <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">"Model"</span>, <span class="st">"Satt"</span>, <span class="st">"RVE"</span><span cla