[R] PLS regression on near infrared (NIR) spectra data

[Bjørn-Helge Mevik]

Paulo Ricardo Gherardi Hein <phein1980 at 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