[R] 回复:How to find the best fit of inner cut ellipse to points in polar plot?

[vod vos]

 ---- 在 星期二, 03 十二月 2019 04:09:12 -0800 vod vos <vodvos using zoho.com> 撰写 ----
 > hi,
 > 
 > 1. How to find the best fit of  inner cut ellipse to points in polar plot?
 > 
 > 2. How can we find the ellipse passing through  most of the points in polar plot?
 > 
 > And can we get the center x, center y, major radius, minor radius, and rotation angle of the ellipse?
 > 
 > The csv data is attached.
 > 
 > Thanks.

We need just consider the r and theta columns in polar coordinate.