lass="op">&lt;-</span> <span class="fu"><a href="../reference/setup.html">setup</a></span><span class="op">(</span>data <span class="op">=</span> <span class="va">gapminder</span>,</span>
<span>                y <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"lifeExp"</span><span class="op">)</span>,</span>
<span>                x <span class="op">=</span> <span class="fu"><a href="https://rdrr.io