You can also mri_convert lh.gender_age.thickness.00.mgh --frame 0 lh.thickness.subject0.mgh

Alternatively, you can specify a temporary directory (--tmp), and all the individual files will be in there.

doug

Bruce Fischl wrote:

Hi Mayuresh,

I think if you do:

mri_convert lh.gender_age.thickness.00.mgh#0 lh.thickness.subject0.mgh

you will extract the first frame (or #1 for the second, etc...).

cheers, Bruce

On Thu, 9 Jul 2009, Mayuresh Korgaonkar wrote:

...

Dear Freesurfer authors,

I have been working with the command line group analysis tutorial from the freesurfer wiki website. Unfortunately I did not "qcached" my data with recon-all. So I ran the "mris_preproc" and "mri_surf2surf" commands from the tutorial (see below) at the end of which I get a single 4D file "lh.gender_age.thickness.10B.mgh" concatenated over all subjects Is there a way to split this file into 3D files so that I have a thickness file for each individual subject?

Thanks, Mayuresh

mris_preproc --fsgd gender_age.fsgd \ --target fsaverage --hemi lh \ --meas thickness \ --out lh.gender_age.thickness.00.mgh

mri_surf2surf --hemi lh \ --s fsaverage \ --sval lh.gender_age.thickness.00.mgh \ --fwhm 10 \ --cortex \ --tval lh.gender_age.thickness.10B.mgh

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