Hi Kathryn - The -stat option was added in the latest tracula update, see
here:
http://freesurfer.net/fswiki/Tracula/#Updates
You need to download this update, after installing freesurfer 5.3, to be
able to do what is described in the tutorials.
a.y
On Wed, 4 Jun 2014, Kathryn Cullen wrote:
> Hello, I am trying to examine FA along the trajectory of the white matter
> tract, as described in the wiki:
> http://freesurfer.net/fswiki/FsTutorial/TraculaStatistics (half way down the
> page).
>
> I am using the FreeSurfer version 3.0.
>
> The wiki says:
>
> The pathstats.byvoxel.txt files will generally not contain the same number
> of positions (rows) for each subject because the tracts are reconstructed in
> each subject's native diffusion space and not in a template space. Thus they
> are not ready for performing group analyses yet. To combine these files from
> multiple subjects, interpolating the anisotropy and diffusivity values at
> corresponding positions along the tract for all subjects, run the following:
>
> trac-all -stat -c $TUTORIAL_DATA/diffusion_tutorial/dmrirc.tutorial
>
> However, when I try to use the -stat option, it says it is not recognized.
> There is no -stat option described in the help, either.
>
> Am I using the wrong version, or do I need to upload something differently?
>
> Thanks very much,
>
> Katie
>
> --
> Kathryn R. Cullen, M.D.
> Assistant Professor
> University of Minnesota Medical School
> Department of Psychiatry
> Division of Child and Adolescent Psychiatry
> F268 West Building
> 2450 Riverside Avenue
> Minneapolis, MN 55454
> (612) 273-9762
>
>
>
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