[R] Principle component analysis function

[Jim Lemon]

phthao05 wrote:
> Dear All,
> 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 I don't known why R language in my computer noticed: "not found
> principle", "not found PCA".
> I download and installed R-2.6.2-win32.exe.
> Thanks alot for answering me.
> Hue University, VietNam.
Hi,
The "principal" (note the spelling - do not let your spellchecker 
convince you otherwise) function is in the "psych" package. You must 
download and install this package in order to use the function.

The PCA function is in the "FactoMineR" package. same deal. See "An 
Introduction to R" in your HTML R help if you don't know how to download 
and install packages.

Jim