Hey, all Do you know if there are some Nonlinear PCA algorithm or functions provided by R package? Now I am working on this and want to see if somebody already did this by R language. Thanks a lot. Fred -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
ftp://gifi.stat.ucla.edu/pub/homalsR.tar.gz but since nonlinear PCA can de defined in various ways, you may have something different in mind --- Jan On Thursday, Oct 17, 2002, at 13:56 US/Pacific, Feng Zhang wrote:> Hey, all > > Do you know if there are some Nonlinear PCA algorithm > or functions provided by R package? > > Now I am working on this and want to see if somebody already did this > by R > language. > > Thanks a lot. > > Fred > > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- > .-.-.-.-.- > r-help mailing list -- Read > http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html > Send "info", "help", or "[un]subscribe" > (in the "body", not the subject !) To: > r-help-request at stat.math.ethz.ch > _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ > ._._._._ > >==Jan de Leeuw; Professor and Chair, UCLA Department of Statistics US mail: 8142 Math Sciences Bldg, Box 951554, Los Angeles, CA 90095-1554 phone (310)-825-9550; fax (310)-206-5658; email: deleeuw at stat.ucla.edu www: http://www.stat.ucla.edu/~deleeuw ======================================================================== === Remember, wherever you go, there you are. --- Buckaroo Banzai ======================================================================== === -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
On Thu, 17 Oct 2002 16:20:51 -0700 Jan de Leeuw <deleeuw at stat.ucla.edu> wrote:> ftp://gifi.stat.ucla.edu/pub/homalsR.tar.gz > > but since nonlinear PCA can de defined in various ways, > you may have something different in mind > > --- Jan > > On Thursday, Oct 17, 2002, at 13:56 US/Pacific, Feng Zhang wrote: > > > Hey, all > > > > Do you know if there are some Nonlinear PCA algorithm > > or functions provided by R package? > > > > Now I am working on this and want to see if somebody already did this > > by R > > language. > > > > Thanks a lot. > > > > FredThe transcan function in the Hmisc package does nonlinear PCs, or at least it derives the nonlinear transformations you can feed into prcomp or other functions. See http://hesweb1.med.virginia.edu/biostat/s/Hmisc.html and a case study in my book Regression Modeling Strategies (Springer, 2001). -- Frank E Harrell Jr Prof. of Biostatistics & Statistics Div. of Biostatistics & Epidem. Dept. of Health Evaluation Sciences U. Virginia School of Medicine http://hesweb1.med.virginia.edu/biostat -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._