[Freesurfer] Question about LGI stats file

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Dear FreeSurfer experts,

Hope this email finds you well. I was wondering if someone could please help clarify some components of the LGI pipeline. So the wiki tells us the following command needs to be done to obtain a stats file with the LGI info for one subject:

mri_segstats --annot my_subject_id lh aparc --i $SUBJECTS_DIR/my_subject_id/surf/lh.pial_lgi --sum lh.aparc.pial_lgi.stats

Should I perform this for each subject and then join them all into one file? I was hoping that you guys could direct me to some stats2table command that could do all of this automatically and thus be less time consuming. Thank you and stay safe

All the best, Alex