This may be what you are looking for: https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/GroupAnalysis

-Louis

On Thu, 25 Aug 2011, xian zhang wrote:

Dear Freesurfers: mri_surf2surf ÿÿÿÿÿÿhemi ÿÿlhÿÿ ÿÿÿÿs ÿÿfsaverageÿÿ ÿÿÿÿsvalÿÿ att-lh-thickness.mgh ÿÿÿÿfwhm ÿÿ10 ÿÿÿÿÿÿtvalÿÿ att-lh-thickness.10.mgh I got error " command not found" or "ERROR: Option ÿÿÿÿÿÿhemi unknown"

although I can do mri_surf2surf ÿÿÿÿÿÿhelp with not problem

I checked fsaverage, OK but my att-lh-thickness.mgh is not inside the fsaverage folder the result of unix "ls" command is

att-lh-thickness.mgh fsaverage

Is there a tutorial data so that I can go through group analysis step by step? Thanks!