[R] how to use biplot to show PC1 and PC3 or else?

[Bill Vinyard]

 xin,

 data(USArrests)
 biplot(princomp(USArrests)) # This plots the default 1st and 2nd components

 biplot(princomp(USArrests),choices=c(1,3)) # use "choices" to plot other
components...in this case 1st and 3rd

Bill

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of xin
Sent: Thursday, April 29, 2004 21:22
To: r-help at stat.math.ethz.ch
Subject: [R] how to use biplot to show PC1 and PC3 or else?


hello:
I am trying to use biplot show relationship between PC1 and PC3 of princomp.
There is example showing how to do it with PC1 and PC2. But I am totally out
of idea for PC1 and PC3. Thanks very much for your kind help.

Best Wishes,

yours,
xin

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