[R] Analogue to SPSS regression commands ENTER and REMOVE in R?
ld7631 at gmail.com
Thu Mar 4 18:24:08 CET 2010
Yes, David is absolutely right - that's it!
On Thu, Mar 4, 2010 at 12:21 PM, Dimitri Liakhovitski <ld7631 at gmail.com> wrote:
> 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
>>> Dimitri.Liakhovitski at ninah.com
>> David Winsemius, MD
>> Heritage Laboratories
>> West Hartford, CT
> Dimitri Liakhovitski
> Dimitri.Liakhovitski at ninah.com
Dimitri.Liakhovitski at ninah.com
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