[R] how to draw the probability ellipse circle figure?

Jie TANG totangjie at gmail.com
Wed Jun 9 03:49:03 CEST 2010


hi ,R user folks .

Nowadays I read a paper which draw a probability ellipse circle  figure
shown in the appendix.
 I wonder how to draw this figure by R ?
the x-axis and y-axis both express the error but in different direction .
-- 
TANG Jie
Email: totangjie at gmail.com
Tel: 0086-2154896104
Shanghai Typhoon Institute,China


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