class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/par.html" class="external-link">par</a></span><span class="op">(</span>las <span class="op">=</span> <span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/boxplot.html" class="external-link">boxplot</a></span><span class="op">(</span><span class="va">pricepergallon</span> <span class="op">~</span> <span class="va">location</span>, data <span class="