<span class='st'>"red"</span>, alpha <span class='op'>=</span> <span class='fl'>0.5</span><span class='op'>)</span></span>
<span class='r-in'><span class='va'>p2</span></span>
<span class='r-plt img'><img src='polar_init-2.png' alt='' width='700' height='433' /></span>
<span class='r-in'></span>
<span class='r-in'><span class='co'># Set aes mapping</span></span>
<span class='r-in'><span class='fu'><a href='https://rdrr.io/r/base/Random.html'>set.seed</a></span><span class='op'>(</span><span class='fl'>123L<