On 06/09/2009 6:08 AM, RON70 wrote:
In the mean time, i have found one package "ellipse" to do the same. The
syntax is :
plot(ellipse(Sigma), type='l')
However I am still struggling on how to use "qplot" (in GGPLOT2) to draw
above plot. I want to get some stylish view for my presentation preparation.
Any help please?
Unlike plot(), qplot() doesn't appear to use xy.coords to extract x and
y from a single argument. So you need to do it:
e <- ellipse(Sigma)
x <- e[,"x"]
y <- e[,"y"]
qplot(x,y,geom="path")
Duncan Murdoch
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