thank you . I can try bayesian. PCA method that I used to is can get some pcs, but I donot know how can i use the original variables in that equation, maybe I should select those have high weight ones,and delete that less weight ones. right?
Ricardo Gonçalves Silva wrote: > > Hi, > > Nowdays there's a lot o new variable selection methods, specially using > the > Bayes Paradigm. > For your problem, I think you could try the Bayesian Model Average BMA > package. > Or, you can reduce your data dimension by PCA, which also permits you see > the weight of > each variable in the PC. > > HTH > > Rick > > -------------------------------------------------- > From: "bbslover" <dlu...@yeah.net> > Sent: Wednesday, November 04, 2009 10:23 AM > To: <r-help@r-project.org> > Subject: [R] variable selectin---reduce the numbers of initial variable > >> >> hello, >> >> my problem is like this: now after processing the varibles, the remaining >> 160 varibles(independent) and a dependent y. when I used PLS method, with >> 10 >> components, the good r2 can be obtained. but I donot know how can I >> express >> my equation with the less varibles and the y. It is better to use less >> indepent varibles. that is how can I select my indepent varibles. >> Maybe >> GA is good method, but now I donot gasp it. and can you give me more >> good >> varibles selection's methods. and In R, which method can be used to >> select >> the potent varibles . and using the selected varibles to model a >> equation >> with higher r2, q2,and less RMSP. >> >> thank you! >> -- >> View this message in context: >> http://old.nabble.com/variable-selectin---reduce-the-numbers-of-initial-variable-tp26195345p26195345.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> 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. >> > > > >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 9.0.698 / Virus Database: 270.14.48/2479 - Release Date: >> 11/03/09 >> 17:38:00 >> > > ______________________________________________ > 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. > > -- View this message in context: http://old.nabble.com/variable-selectin---reduce-the-numbers-of-initial-variable-tp26195345p26207750.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.