[R] Polymars

Charles Kooperberg clk at fhcrc.org
Wed Oct 2 17:14:16 CEST 2002


Actually,

If David is on a unix/linux based system, I can email him
a package right now.

Charles

Martin Maechler wrote:
> 
> >>>>> "DavidB" == Brown, David <djbrown at montana.edu>
> >>>>>     on Fri, 27 Sep 2002 10:33:33 -0600 writes:
> 
>     DavidB> I've seen references to "polymars", an R
>     DavidB> implementation of Friedman's MARS algorithm.  Can
>     DavidB> anyone tell me where I might be able to find this
>     DavidB> (doesn't seem to be in the contributed packages.
> 
> not visibly anymore, but in "Archive" of old packages, i.e., in
> the States,
>   http://cran.US.r-project.org/src/contrib/Archive/  -> polymars_1.0-5.tar.gz
> 
> Its DESCRIPTION says
> 
>  >> Package: polymars
>  >> Version: 1.0-5
>  >> Title: Polychotomous Regression based on MARS
>  >> Author: Charles Kooperberg and Martin O'Connor
>  >>         R port by Guido Masarotto <guido at sirio.stat.unipd.it>
>  >> Maintainer: Guido Masarotto <guido at sirio.stat.unipd.it>
>  >> Description: (polychotomous) regression based on
>  >>              Multivariate Adaptive Regression Splines
>  >> License: Free for non-commercial purposes. See the original README.
> 
> As far as I remember (from heresay of the CRAN maintainers),
> there have been at least two problems which made it disappear from
> "official" CRAN:
> 
>   - The "Maintainer" did not continue to maintain it when it
>     became evident the package needed some fixes to pass "R CMD check"
>   - The "License" made it no so much useful anyway such as to
>     try to find another maintainer.
> 
> The good news is that Charles Kooperberg recently told me about
> his plans of providing improved code and maintaining it himself
> in the future.
> 
> If Charles (the owner of the code) changes the licence to GPL,
> I'd volunteer to spend a few hours on the package to have it
> pass "R .. check" to be back on CRAN till Charles' new code will
> appear.
> 
> Martin Maechler <maechler at stat.math.ethz.ch>    http://stat.ethz.ch/~maechler/
> Seminar fuer Statistik, ETH-Zentrum  LEO C16    Leonhardstr. 27
> ETH (Federal Inst. Technology)  8092 Zurich     SWITZERLAND
> phone: x-41-1-632-3408          fax: ...-1228                   <><

-- 
------------------------------------------------------------------------
Charles Kooperberg        
Fred Hutchinson Cancer Research Center  (206) 667-7808
Division of Public Health Sciences      (206) 667-4142 (fax)
1100 Fairview Avenue / MP 1002          clk at fhcrc.org
Seattle, WA 98109-1024                  http://bear.fhcrc.org/~clk
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