Paulo Ricardo Gherardi Hein <phein1...@gmail.com> writes: > I am new here (since jan2009) and up to now, I not seen anyone commenting > about principal component analysis and regression PLS to analyze spectral > information in R system. Sorry, I am a R starter... > > Anybody have any package, or trick to suggest me?
There is the package 'pls', with Principal Component Regression (PCR) and Partial Least Squares Regression (PLSR). It also contains a couple of plots that are useful for princomp() or prcomp() analyses (PCA). -- Bjørn-Helge Mevik ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.