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Dear FSL Experts, * *How group analysis & statistics can be done from >1 subject's classification results (seeds_to_*). & normal one seed (fdt_paths.nii) results from multiple subjects. 1) #individual >find_the_biggest seeds_to_*.* biggest.nii >mri_binarize --i biggest.nii --match 1 --o s1_1.nii #group >fslmaths 1_biggest_subject01.nii -add 1_biggest_subject02.nii *-div* 2 1_biggest_avg.nii* *or Should I first sum all the seeds_to_* with same identity, and then run |*find_the_biggest| for group. or Should I run find_the biggest for individual and group these results by adding them. *2) calculation of number of streamlines & connectivity value, should it be done on individual subject for all seeds_to_* , and then calculate a mean for group ? 3) one seed tracking results group track generation: >fslmaths fdt_path_subject_001.nii -add fdt_path_subject002.nii *-div 2 * avg_track.nii Is this fine ? Thank you