Dear all,

I have a question regarding a non linear mixed-effect model. But I explain
it as a linear model.

Suppose that I have a model like this, the code is only illustrative, the
subjects are included as a random variable:

lm (VD ~ Groupofage (between subjects factor) + Task (whitin subjects
factor), random = pdDiag(Groupofage + Task ~1).

The factors were coded as treatment constrasts, therefore the intercept of
this model reflect the mean value of the first group of age and the first
level of that Task.

The question: Can I include this intercept as random? In fact it reflect
the value of a between subject condition.

Thanks,
Odir

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