[R] Analogue to SPSS regression commands ENTER and REMOVE in R?

[Dimitri Liakhovitski]

Yes, I was indeed asking about stepwise procedures!

On Thu, Mar 4, 2010 at 11:29 AM, David Winsemius <dwinsemius at comcast.net> wrote:
>
> On Mar 4, 2010, at 10:47 AM, Dimitri Liakhovitski wrote:
>
>> I am not sure if this question has been asked before - but is there a
>> procedure in R (in lm or glm?) that is equivalent to ENTER and REMOVE
>> regression commands in SPSS?
>> Thanks a lot!
>
> I haven't used SPSS for 25 years (excluding a brief session where I talked
> an inexperienced SPSS user through creating a multi-way table of mortality
> ratios a couple of years ago) but my memory is that those operations drop or
> add terms to a model formula and produced voluminous paper output as a
> result. Looking at the "lm" function help page, I guessed that I might find
> more information at the anova.lm help page and sure enough, there at the
> bottom of the page was "drop1". My vague memory that there was a matching
> "add1" was rewarded with confirmation when I followed the "drop1" link.
>
> I generally just make another call to lm().
>
>
>>
>> --
>> Dimitri Liakhovitski
>> Ninah.com
>> Dimitri.Liakhovitski at ninah.com
>>
> --
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
>



-- 
Dimitri Liakhovitski
Ninah.com
Dimitri.Liakhovitski at ninah.com