[R] Lme and centered variables

Liaw, Andy
2005-01-14T00:26:26Z

I'm by no means expert in such matter, but where did you get the idea that
such manipulation is needed?  If you center the response by its mean, that's
the same as taking out the intercept.  There's no reason to do that
beforehand.  As to centering by median, that's a first for me, and quite
frankly I don't see what it buys you.

Andy

> From: Martin Julien
>
> I want to fit a linear mixed-model with my data but I want to
> know if I have
> to center all my responses variables on their median and why
> I have to do
> it?
>
> Thank
>
> Julien Martin
>
>
>
>
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