Obtain residuals from a Principal Component Analysis
Just use 'predict' on the fitted model and subtract the predicted values from the data. Kevin Wright
On Wed, Jul 25, 2012 at 5:02 AM, petohtalrayn <h643306 at rtrtr.com> wrote:
Hi everyone, I am relatively new to R, and I need to perform the principal components analysis of a data matrix. I know that there are a bunch of methods to do it (dudi.pca, princomp, prcomp...) but I have not managed to find a method that can return the residuals obtained by retaining X principal components of the original data, as this MATLAB function can do: http://is.gd/6WeUFF Suggestions? Please, help me to find a way to do it, any information you can give will be highly appreciated. Thanks in advance! -- View this message in context: http://r.789695.n4.nabble.com/Obtain-residuals-from-a-Principal-Component-Analysis-tp4637754.html Sent from the R help mailing list archive at Nabble.com.
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Kevin Wright