[R] reading lmer table
Nicola Spotorno
nicola.spotorno at isc.cnrs.fr
Thu Aug 19 11:10:11 CEST 2010
Thank you very much Mark, I'll try.
Regards,
Nicola
Mark Difford ha scritto:
> Hi Nicola,
>
>
>>> In few word: does this row indicate a global effect of the predictor
>>> 'cat'
>>> or a more specific passage?
>>>
>
> It indicates a more specific passage. Use anova(m7) for global/omnibus.
> Check this for yourself by fitting the model with different contrasts. The
> default "contrasts" in R are treatment contrasts.
>
> ##
> m7 <- lmer(log.second ~ Cond + cat + (1|subjID) + (1|Code), data = march.f,
> contrasts=list(Cond=contr.treatment,
> cat=contr.treatment))
> m7s <- lmer(log.second ~ Cond + cat + (1|subjID) + (1|Code), data = march.f,
> contrasts=list(Cond=contr.sum, cat=contr.sum))
> summary(m7)
> summary(m7s)
> anova(m7)
> anova(m7s)
>
> Regards, Mark.
>
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