You cannot use qdec for this. You must use the "command line stream".
There is a tutorial for this as well as a presentation on our wiki.
Basically, you will need to create your FSGD file, run mris_preproc,
mri_surf2surf to smooth, mri_glmfit, and mri_glmfit-sim
doug
On 07/09/2014 03:43 AM,
Subject: Categorical covariates with more than two levels on qdec
Categorical covariates with more than two levels on qdec
Dear Freesurfer experts,
I am doing an analysis on a large data set gathered from eight different
imaging centres. In my analysis I would like to covary for the
Not using qdec. You will have to use the "command-line" stream with
mris_preproc, mri_surf2surf, mri_glmfit, and mri_glmfit-sim. There is a
tutorial and slides available
doug
On 07/02/2014 10:46 AM, Isotalus, Hanna wrote:
>
> Dear Freesurfer experts,
>
>
> I am doing an analysis on a large dat
I have similar questions too, Hanna! I tried to select a categorical
variable with 3 levels in Discrete (Fixed Factors) tab, but failed.
In another analysis, I am trying to select two continuous variables in the
Continuous (Covariate) tab, but qdec does not allow me to select two at one
time.
Do
Dear Freesurfer experts,
I am doing an analysis on a large data set gathered from eight different
imaging centres. In my analysis I would like to covary for the imaging site but
qdec only allows me to covary for categorical variables if they have two levels
(and I have eight). I am also using
