[R] biplots for PCA

Anna Renwick
2011-05-13T09:38:12Z

Hi all

I have produced a biplot for a PCA (see attached pdf) that I ran however the
names of the variables which are placed at the end of the arrows overlap and
are thus unreadable. Similarly some of the numbered points overlap. I was
wondering if there was a way to edit the biplot to move the label names and
if not what the best alternative is.

Thanks
Anna

pca<-biodata[,3:10]
model<-prcomp(pca,scale=TRUE)
summary(model)
biplot(model)


--
Dr Anna R. Renwick
Research Ecologist
British Trust for Ornithology,
The Nunnery,
Thetford,
Norfolk,
IP24 2PU,
UK
Tel: +44 (0)1842 750050; Fax: +44 (0)1842 750030
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