Dear Lars,
One way would be

anova(model1, model2)

See ?anova for more information.

HTH,

Jorge



On Mon, Jul 13, 2009 at 7:04 AM, Lars Bergemann
<lars.bergem...@hotmail.com>wrote:

>
> Hi.
>
>
>
> I would like to use a likelihood-ratio test to compare a linear model
> (lm()) to another linear model containing the first one to see if the extra
> factors are needed - but I was unable to find any help on how to do that.
>
> Could you help me and tell me what to do? Or tell me where to find help on
> this topic?
>
>
>
> Many thanks in advance!
>
>
>
> Lars
>
> _________________________________________________________________
>
> s. It's easy!
>
> aspx&mkt=en-us
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>
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>

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