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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September 15, 2014 11:00AM
Hi,
I have an image composed of 146 sub-bricks and would like to calculate voxel-by-voxel mean intensity across sub-bricks. I used 3dTstat with the -mean option but didn't work (I still have an output composed of 146 sub-bricks). Where is the problem?
Another question, how can I calculate the degrees of freedom in an AFNI file?

Thanks,
giovanni
Subject Author Posted

Mean intensity calculation

gbattist September 15, 2014 11:00AM

Re: Mean intensity calculation

Daniel Glen September 15, 2014 11:53AM