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  

Previous Message Next Message
Message List New Topic Print View
|
Daniel Glen
April 25, 2016 03:19PM
3ddot has options to output correlation coefficients, simple dot product or Dice coefficient. AFNI has other programs like 3dOverlap, 3dABoverlap, @DiceMetric to compute overlap. You can also use 3dcalc with 3dBrickStat to do some similar calculations. You will have to decide which metric is useful for you. The help from 3ddot shows this to describe some of the major options for that.

-demean Means to remove the mean from each volume
prior to computing the correlation.
-docor Return the correlation coefficient (default).
-dodot Return the dot product (unscaled).
Reply Quote
RSS
Subject Author Posted

What does 3ddot do exactly?

ahmedaak April 25, 2016 01:23PM

Re: What does 3ddot do exactly?

Daniel Glen April 25, 2016 03:19PM

Re: What does 3ddot do exactly?

rick reynolds April 25, 2016 03:19PM

Re: What does 3ddot do exactly?

ahmedaak April 26, 2016 03:55AM

Re: What does 3ddot do exactly?

Daniel Glen April 26, 2016 07:42AM

Re: What does 3ddot do exactly?

rick reynolds April 26, 2016 08:19AM

Re: What does 3ddot do exactly?

ahmedaak April 26, 2016 08:50AM

Re: What does 3ddot do exactly?

rick reynolds April 26, 2016 09:10AM

Re: What does 3ddot do exactly?

ahmedaak April 26, 2016 11:33AM

Re: What does 3ddot do exactly?

Daniel Glen April 26, 2016 12:22PM