span class="va">`1999salary`</span><span class="op">)</span><span class="op">)</span> <span class="op">+</span> </span></span>
<span class="r-in"><span>           <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/geom_dotplot.html" class="external-link">geom_dotplot</a></span><span class="op">(</span>dotsize <span class="op">=</span> <span class="fl">0.5</span><span class="op">)</span> <span class="op">+</span> </span></span>
<span class="r-in"><span>           <span class="fu"><a href="http