[R] lme and lmer syntax

[Ronaldo Reis-Jr.]

Hi,

I have this:

lme(y~x1+x2,random=~1|x1/x2)

How to make this random effect using lmer?

I try this:

lmer(y~x1+x2+(1|x1/x2)

But it dont work.

Any idea?

Thanks
Ronaldo
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