class="r-msg co"><span class="r-pr">#&gt;</span> Loading required package: lattice</span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/pkg/lattice/man/xyplot.html" class="external-link">xyplot</a></span><span class="op">(</span><span class="va">pred</span> <span class="op">+</span> <span class="va">low</span> <span class="op">+</span> <span class="va">upp</span> <span class="op">~</span> <span class="va">year</span> <span class="op">|</span> <span class="va">group</span>, data <span cl