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? Thanks, 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. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
