Prof Brian Ripley schrieb:
On Tue, 24 Feb 2009, Axel Strauß wrote:
OK, the one thing I figured out:
Is should be like:
biplot(test.pca, cex=c(2,1), col=c("red","green")...
to change size, colours etc separately. But I still don't know how
change lables of observations to symbols properly.
That's not part of the design of the function, so just make a copy and
edit to meet your fancies.
The designer of biplot.princomp.
The idea behind my question was actually not a "styling one" but to
provide additional information in the graph. My observations have
different species richness and I wanted to adopt symbol size to the
number of species to show the change of species richness along the PCs.
Anyway, thanks for the comment - and for designing biplot.princomp.
Axel
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