'><a href='https://ggplot2.tidyverse.org/reference/aes.html'>aes</a></span><span class='op'>(</span>size <span class='op'>=</span> <span class='va'>size</span>, color <span class='op'>=</span> <span class='va'>color</span>, shape <span class='op'>=</span> <span class='va'>shape</span><span class='op'>)</span>, alpha <span class='op'>=</span> <span class='fl'>0.5</span><span class='op'>)</span></span>
<span class='r-in'><span class='va'>p3</span></span>
<span class='r-plt img'><img src='polar_init-3.png' alt