Hi,
this may sound like a very stupid question and perhaps it is, so I
apologise in advance if anyone feels bored by it.
I have done some principal component analysis with prcomp and what I
would like to do is to visualise the effect of a principal component,
i.e. show a graph of my data and then show how that graph would change
if I go, let's say, one standard deviation, in either direction. Kind of
original graph plus graph with +1 s.d. plus graph with -1 s.d. I know
how to plot several graphs together but how do I compute the points of
the graphs with the PC effects in R?
Regards
Roland
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