R help - Mar 2015 - Calculating different PCAs in R

Dear All, I want to use princomp() function in R in order to calculate Principle
Component Analysis.In different papers, I have seen "PCA 1", "PCA
2", "PCA 11" , etc. Would you please tell me how can i calculate
different PCAs in R?At the moment i just use this line "eigenVectors <-
pca$loadings"But I don?t know if it is correct to use loadings.Thank you in
advance. ?Best regards,
Iman Dabbaghi

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PCA 1, 2, and 3 refer to the scores not the loadings.
Check out the help for princomp.

?princomp

pc.cr <- princomp(USArrests, cor = TRUE)
pc.cr$scores[1:3, ]

Jean


On Tue, Mar 31, 2015 at 4:26 PM, im db <imdb.subscribe at gmail.com>
wrote:
> Dear All, I want to use princomp() function in R in order to calculate
> Principle Component Analysis.In different papers, I have seen "PCA
1", "PCA
> 2", "PCA 11" , etc. Would you please tell me how can i
calculate different
> PCAs in R?At the moment i just use this line "eigenVectors <-
> pca$loadings"But I don?t know if it is correct to use loadings.Thank
you in
> advance.  Best regards,
> Iman Dabbaghi
>
>         [[alternative HTML version deleted]]
>
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