ass="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co">##############</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># An effects plot for the mean subject (i.e., with random effects equal to 0)</span></span></span>
<span class="r-in"><span><span class="va">nDF</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/with.html" class="external