[R]

Spencer Graves spencer.graves at pdf.com
Sat Apr 26 06:13:34 CEST 2003


stepAIC in MASS.

hope this helps.  spencer graves

Thomas W Blackwell wrote:
> 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 at 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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