[R] lme and lmer syntax
Ronaldo Reis-Jr.
chrysopa at gmail.com
Tue Oct 25 21:56:07 CEST 2005
Em Ter 25 Out 2005 15:24, Doran, Harold escreveu:
> There is an issue with implicit nesting in lmer. In your lme() model you
> nest block/irrigation/density/fertilizer. In lmer you need to do something
> like (I dind't include all of your variables, but I think the makes the
> point)
>
> lmer(yield~irrigation*density*fertilizer+(1|fertilizer:density)+(1|density)
>, data)
>
> Which notes that fertilizer is nested in density.
>
> Try this and then compare the results.
>
It dont work.
I dont understand the basic output.
Independently of the nested model defined, the denom are 54.
My doubt, the denom in anova(lmer) table is the densDF in anova(lme) table?
I looking for a corrected DF for each nest variable, but it show a common DF
for all variables.
Exist more documentation about lmer?
Thanks
Ronaldo
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