I am looking, quite unsuccesfully, for a number of functions/packages.
Firstly, I am interested in a package for partial least squares. I have found that there seemed to exist a package called pls, but which seems not to run any more with modern versions of R. I have not been able to find certain "chemometrics package" I found some people discussing about in this list some time ago and that, it seems, included these kind of functions.
Secondly, I have not been able to find a function "equivalent" to the SAS procedure STEPDISC which performs a step process (only available for lm and glm on R) on linear discriminant analysis (lda on R).
Does anybody know of a top-the-shelf answer to these questions?
Carlos J. Gil Bellosta Sigma Consultores Estadísticos http://www.consultoresestadisticos.com
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