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
|
udaykurkure
April 17, 2015 09:44AM
Hi,

I want to understand the positive/negative values in the output of GLT and SVM. Please let me know if I have understood it correctly.

If I give a contrast [+condA -condB] in 3dDeconvolve, the coefficients brik will have positive values where condA's coefficient were greater than those of condB. Is that right?

If I give label 1 for condA and label 0 for condB, the SVM output (weights) will have positive values at voxels which contributed to condA and negative values where the voxels contributed to condB. Is that right?

Thanks,
Uday



Edited 1 time(s). Last edit at 04/17/2015 11:11AM by udaykurkure.
Reply Quote
RSS
Subject Author Posted

3dDeconvolve and 3dSVM

udaykurkure April 17, 2015 09:44AM

Re: 3dDeconvolve and 3dSVM

udaykurkure April 21, 2015 01:04PM

Re: 3dDeconvolve and 3dSVM

rick reynolds April 21, 2015 04:16PM

Re: 3dDeconvolve and 3dSVM

udaykurkure April 22, 2015 06:55PM

Re: 3dDeconvolve and 3dSVM

jlisinski August 24, 2015 12:53PM