: Re: [Freesurfer] Linear Mixed Models in FS?
Hi
Jorge,
Thank
you! Yes this makes sense, because this confirms that the second
covariate in fact tests for an effect across all groups, just as I
expected.
Now,
there's another problem with these analyses: Please consider the
attached figure
...@gmail.com
Cc: Freesurfer support list freesurfer@nmr.mgh.harvard.edu
Sent: Thursday, June 19, 2014 8:56:38 AM
Subject: Re: [Freesurfer] Linear Mixed Models in FS?
Yes there is numerical instability when p-values becomes extremely low and y
our solution is OK. You are just being conservative
Hi Jorge,
Thank you for your reply!
Again considering the same model from before
intercept(random effect) + centered age + group + group x centered age
+ sex
I think what is confusing me is that I think of the [centered age]
covariate as a column vector which will contain the centered age
quantity. That quantity is the
interaction term.
Hope this makes
sense
Best
-Jorge
De: Lars M. Rimol lari...@gmail.com
Para: FS maling list freesurfer@nmr.mgh.harvard.edu
Enviado: Miércoles 18 de junio de 2014 8:57
Asunto: Re: [Freesurfer] Linear Mixed Models
