From: Thomas W Blackwell (tblackw@umich.edu)
Date: Sat 26 Apr 2003 - 03:12:12 EST
Message-id: <Pine.SOL.4.44.0304251309570.19028-100000@tetris.gpcc.itd.umich.edu>
Probably you've already found the function step() in the base
package, and its sub-functions add1(), drop1(). See the help
for these.
- tom blackwell - u michigan medical school - ann arbor -
On Fri, 25 Apr 2003 edgar@uprm.edu wrote:
> Hello,
> Does anybody know where I can find an R function to carry out variable
> selection using stepwise similar (or even better) to the stepwise function
> available in S-Plus?. I have tried the mle.stepwise function available in
> the wle package but I am not getting accurate results.
> I have tried also the leaps package but it does not handle the options
> f-in and f-out like in either MINITAB or SAS.
>
> Thanks in advance
>
> Dr. Edgar Acuna
> University of Puerto Rico at Mayaguez
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