[R] Concentration ellipsoid

RON70 ron_michael70 at yahoo.com
Sun Sep 6 12:08:17 CEST 2009

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?


RON70 wrote:
> Hi all,
> Can anyone please guide me how to draw a Concentration ellipsoid for a
> bivariate system with a bivariate normal dist. having a VCV matrix : 
> Sigma <- matrix(c(1,2,2,5), 2, 2)
> I would like to draw in using GGPLOT. Your help will be highly
> appreciated.
> Thanks,

View this message in context: http://www.nabble.com/Concentration-ellipsoid-tp25315705p25316243.html
Sent from the R help mailing list archive at Nabble.com.

More information about the R-help mailing list