I also wonder if stepAIC can work with an lme model. I tried. it doesn't for
now. Appreciate any comment.

Jun

On Thu, May 7, 2009 at 9:15 AM, Dieter Menne
<dieter.menne@menne-biomed.de>wrote:

> Peter-Heinz Fox <peterheinzfox <at> yahoo.de> writes:
>
> > I’m using "step" and "stepAIC" for stepwise regression. After each
> step,
> > I would like to make an additional calculation based on the independent
> > variables that have been selected until this step and
> > their corresponding weights. Where do I have to add this calculation?
>
> dropTerm is the toolbox function stepAIC uses; you could use it to build
> your own stepAIC version.
>
> But also make sure you have read
>
> http://markmail.org/thread/gk7ysg6tclz4vtdi
>
> and consider some lasso variant method instead (this partly
> answers your second question).
>
> Dieter
>
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>



-- 
Jun Shen PhD
PK/PD Scientist
BioPharma Services
Millipore Corporation
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