nt: Saturday, March 11, 2017 3:21 AM
To: David L Carlson <dcarl...@tamu.edu>
Cc: R-help Mailing List <r-help@r-project.org>
Subject: Re: [R] problem with PCA
Thank you David for your answer.
If I understood the relative positions of variable arrows don't reflect the
coefficient of corr
Thank you David for your answer.
If I understood the relative positions of variable arrows don't reflect the
coefficient of correlation of the original variables. In fact these
positions change if I use different PC axes.
But in some manual about PCA in R I read: "Pairs of variables that form
This is more a question about principal components analysis than about R. You
have 4 variables and they are moderately correlated with one another (weight
and hole are only .2). When the data consist of measurements, this usually
suggests that the overall size of the object is being partly
On Jun 10, 2009, at 1:26 PM, Fireblast wrote:
Hi,
I am a beginner with R. I would like to get a loading plot of PC 3
vs PC 1.
For PC 1 vs PC 2 I use
library(pls)
loadingplot(pca.result, comps = 1:2, scatter = TRUE, labels=names)
if I try
loadingplot(pca.result, comps = 1:3, scatter =
On Wed, 2008-03-05 at 19:43 -0800, phuong thao wrote:
Dear Ms/Mr,
In a package, I want to use PCA function. The structure I used follow this
page: http://www.statmethods.net/advstats/factor.html.
fit-principle(mydata, nfactors=9, rotation=TRUE)
or:
result-PCA(mydata)
But
On 3/3/08, Richard Rowe [EMAIL PROTECTED] wrote:
This is a homework problem. I know how to do a PCA, you need to learn.
I suggest you visit your textbook, then check the documentation for R's
various PCA implementations to work out how to effect the analysis.
Check Rcmdr. There you can
This is a homework problem. I know how to do a PCA, you need to learn.
I suggest you visit your textbook, then check the documentation for R's
various PCA implementations to work out how to effect the analysis.
phthao05 wrote:
I have an exercise. With 3 kinds of yohourt a,b,c. There are 25
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