='' width='700' height='433' /></span>
<span class='r-in'></span>
<span class='r-in'><span class='co'># --------------------</span></span>
<span class='r-in'><span class='co'>#  Connect polar dots</span></span>
<span class='r-in'><span class='co'># --------------------</span></span>
<span class='r-in'><span class='va'>data2</span> <span class='op'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a></span><span class='op'>(</span></span>
<span class='r-in'>  x1 <span