"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">x</span> <span class="op">&lt;-</span> <span class="op">~</span> <span class="va">cty</span></span>
<span><span class="va">y</span> <span class="op">&lt;-</span> <span class="op">~</span> <span class="fu"><a href="https://rdrr.io/r/base/MathFun.html" class="external-link">sqrt</a></span><span class="op">(</span><span class="va">hwy</span><span class="op">)</span></span>
<span><span class="va">color</span> <span class="op">&lt;-</s