[R] Linear regression on several groups

[Derek Ogle]

Have a look at lmList() in the nlme package.

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of JesperHybel
> Sent: Friday, August 13, 2010 7:56 AM
> To: r-help at r-project.org
> Subject: Re: [R] Linear regression on several groups
> 
> 
> Example is spot on - sr for not providing one myself.
> The results you calculate are what I'm looking for.
> 
> Would like a function F where I could type:
> 
> F(weight ~ Time, data = ChickWeight, SOME ARGUMENT = Diet))
> 
> Resulting in
> 
> for (i in 1:4){
> print(
> 
> lm(weight ~ Time, data = ChickWeight, subset = Diet==i)
> 
> )
> }
> 
> I'm simply trying to minimize amount of looping and typing etc.
> 
> BR Jesper
> 
> 
> 
> 
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> regression-on-several-groups-tp2322835p2324154.html
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