[R] regression diagnostics [Re: two new packages]
maechler at stat.math.ethz.ch
Sat Apr 28 15:00:39 CEST 2001
>>>>> "John" == John Fox <jfox at mcmaster.ca> writes:
John> I've prepared preliminary versions of two packages that I plan
John> eventually to contribute to CRAN:
John> car (for "Companion to Applied Regression") is a package that
John> provides a variety of functions in support of linear and
John> generalized linear models, including regression diagnostics
John> (e.g., studentized residuals, hat-values, Cook's distances,
John> dfbeta, dfbetas,
the above are all already in standard R!
Did you look at ?influence.measures and the functions
mentioned on that help page?
I believe these are all correct for glm objects (which inherit from "lm"),
as well. Otherwise, we'd rather like to see bug reports!
John> I'm particularly interested in suggestions and comments.
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO D10 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
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