AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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May 13, 2004 09:35AM
They have to be different because you processed the data differently. 3dTcat simply concatenates all the scanning sessions together while '3dcalc ...-expr '(a+b+c+d+e+f)/6' generates the average of six data volumes.

There are different ways to preprocess the data, and it depends on what questions the user wants to answer. Refer to HowTo1 and HowTo5 for more details:

[afni.nimh.nih.gov]
[afni.nimh.nih.gov]

Gang
Subject Author Posted

link VS average

William May 13, 2004 02:32AM

Re: link VS average

Gang Chen May 13, 2004 09:35AM