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Hello FreeSurfer Developers,

I am just started to use "the trac-all -stat" command of Tracula 7.1.1 to reconstruct a mean tract for each pathway for all the subjects of a 
group. Several files are created for each pathway in the "stat" directory.

What are the differences between these two files created for the AF, MD 
AD and RD diffusion parameters :

- TRACTNAME_PP.avg33_mni_bbr.**.txt

- TRACTNAME_PP.avg33_mni_bbr.**_Avg.txt


Thank You very much for your help.


Best Regards,
F. Noury

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Fanny NOURY, Ph.D
Associate Pr.
Rennes 1 University

LTSI UMR INSERM 1099
Université de Rennes 1
Campus Villejean - RDC Bât. 5
CS 34317
35043 Rennes Cedex
France