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  

|
November 29, 2016 09:31PM
Hi AFNI experts,
I noticed that 3ddot output different values when the -demean option is on or off.
I guess that the output without -demean is not the person correlation.

the help documentation say the following:
-demean Means to remove the mean from each volume
prior to computing the correlation.

What is the meaning of the output value if I did not use the -demean option?

Thanks very much!
Lz
Subject Author Posted

about the 3ddot

lzhyoung November 29, 2016 09:31PM

Re: about the 3ddot

gang December 01, 2016 08:50AM