> I am trying to use PrinComp to do principle component analysis. I > would like to know how to set the number of principle components.
I assume you mean the function princomp (case _does_ matter in R) in package stats (which is loaded by default). This function has no way of specifying how many components to calculate; it always gives you all components. You have to select the components you want afterwards. See help(princomp) for details. E.g. X <- some matrix pc <- princomp(X) pc$scores[,1:4] # The four first score vectors pc$loadings[,1:4] # The four first loadings (The loadings can also be extracted with loadings(pc)[,1:4] .) -- Bj�rn-Helge Mevik ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
