R help - Feb 2011 - how to plot equalprobable error ellipse?

hi,R users,
  Now  I have some scatter figures, is there some method can plot equalprobable
error ellipse ?

-- 
TANG Jie
Email: totangjie@gmail.com
Tel: 0086-2154896104
Shanghai Typhoon Institute,China

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On Feb 23, 2011, at 10:06 PM, Jie TANG wrote:
> hi,R users,
>  Now  I have some scatter figures, is there some method can plot  
> equalprobable
> error ellipse ?
Consider searching?

http://search.r-project.org/cgi-bin/namazu.cgi?query=ellipse+density+2d&max=100&result=normal&sort=score&idxname=functions&idxname=Rhelp08&idxname=Rhelp10&idxname=Rhelp02

http://search.r-project.org/cgi-bin/namazu.cgi?query=ellipse+quantile&max=100&result=normal&sort=score&idxname=functions&idxname=Rhelp08&idxname=Rhelp10&idxname=Rhelp02

??"density 2d" geom_density2d{ggplot2}

also look a:

kde2d{MASS}, bkde2D{KernSmooth}, contourplot{lattice}

--

David Winsemius, MD
West Hartford, CT

On 2011-02-23 19:06, Jie TANG wrote:
> hi,R users,
>    Now  I have some scatter figures, is there some method can plot
equalprobable
> error ellipse ?
>
It's not clear to me what you mean by 'error ellipse'
but perhaps dataEllipse() in the car package is useful.

Peter Ehlers