R help - Apr 2011 - multiple variables Y and X

Hello

I have a model with several hundred Y variables, and also several 1000 X
variables. The model is linear lm(Y ~ X). My questions are:

1.- how to avoid writing all Xs variables? is list() the right function?

2.- about the multiple Ys with dependence among some of them, how to incorporate
that information in the linear model?

Thank you

Rosario

Hello,

You can do that like in the example included in the function step()

lm1 <- lm(Fertility ~ ., data = swiss)


But my advise is that prior to doing that, you should check this old
thread in this list:

http://tolstoy.newcastle.edu.au/R/e4/help/08/02/2842.html


Regards,
Carlos Ortega
www.qualityexcellence.es

On Mon, Apr 4, 2011 at 8:58 AM, Rosario Garcia Gil
<M.Rosario.Garcia@slu.se>wrote:
> Hello
>
> I have a model with several hundred Y variables, and also several 1000 X
> variables. The model is linear lm(Y ~ X). My questions are:
>
> 1.- how to avoid writing all Xs variables? is list() the right function?
>
> 2.- about the multiple Ys with dependence among some of them, how to
> incorporate that information in the linear model?
>
> Thank you
>
> Rosario
> ______________________________________________
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> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>
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