Hi, Jim,
Thank you very much for your email.
Could you please explain more about the modification about how to adding this
"pch=1,cex=0.2" to the following command line?
biplot(pca2,xlabs=rep(".",19000))
The R document seems to only take text input, whereas "pch=1,cex=0.2" are
actually graphic parameters...
Also the question about "points on the biplot are not exactly the same as the
predicted values" I asked in my previous post, I meant that when I checked the
coordinates on the biplot, they are not matching to the pc1 and pc2 values in
the predicted output I got from the following command
predict(pca2, originalData, ...)
Capricy
________________________________
From: Jim Lemon <j...@bitwrit.com.au>
Cc: "r-help@r-project.org" <r-help@r-project.org>
Sent: Wednesday, May 1, 2013 5:33 AM
Subject: Re: [R] still about biplot for principal componens analysis
On 05/01/2013 02:46 AM, capricy gao wrote:
> I noticed that the points on the biplot are not exactly the same as the
> predicted values.
>
> Could any body give me a hint about why?
>
Hi capricy,
If you mean the points that would result from the suggestion I sent
yesterday, it is probably because using the period (".") character
places the dots a bit lower than the actual values. Try using:
pch=1,cex=0.2
Jim
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