ier
>
>
>
> - Mail Original -
> De: "Chris Friedl"
> À: r-help@r-project.org
> Envoyé: Mercredi 17 Juin 2009 12h07:08 GMT +01:00 Amsterdam / Berlin /
> Berne / Rome / Stockholm / Vienne
> Objet: [R] Re gression by groups questions
>
>
> I
pasting reply by Xavier into this thread for the sake of others who might
come across it in their R travels. Thanks Xavier
Hi,
It seems like your multivariate regression works for groups A and B. For
group C, values are calculated using an interaction between x1 and x2. Try
to include it in the
in / Berne /
Rome / Stockholm / Vienne
Objet: [R] Re gression by groups questions
I have a large dataset grouped by a factor and I want to perform a regression
on each data subset based on this factor. There are many ways to do this,
posted here and elsewhere. I have tried several. However I
I have a large dataset grouped by a factor and I want to perform a regression
on each data subset based on this factor. There are many ways to do this,
posted here and elsewhere. I have tried several. However I found one method
posted on the R wiki which works exactly as I want, and I like the ele
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