On Thu, 2004-11-04 at 22:44, T. Murlidharan Nair wrote:
> Is there an option to draw concentration ellipses in biplots ? It seems
> really nice to summarize large number of points of each group.
Murli,
If you mean biplot.prcomp function in stats package, and you want to
draw the "concentration el
Hi all,
you can see in the library(ade4).
there is a nice graphical function called ‘s.class’.
Example for a principal components analysis:
?s.class
data(meaudret)
pca1 <- dudi.pca(meaudret$mil, scan = FALSE, nf = 4)
# plot row coordinates
s.class(pca1$li, meaudret$plan$dat, sub = "Principal C
Is there an option to draw concentration ellipses in biplots ? It seems
really nice to summarize large number of points of each group.
Cheers../ Murli
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