an provide an answer to your question.
Best regards
François
- Original Message -
From: "Irene Mantzouni" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, November 04, 2007 10:48 PM
Subject: [R] hierarchical mixed model
>
> I would like to fit a 2-
I would like to fit a 2-level mixed model:
yit=a+a[i]+a[it] +(b+b[i]+b[it])*xit+eps[it]
However, the variance of the second level components should depend on the
group, i.e. sigma for a[it] and b[it] should be [i] specific.
I do not know whether this is conceptually right in the mixed model
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