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

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gang
May 28, 2015 03:00PM
> I then correlated these values with the covariate (within each group) to obtain an estimate of the slope.

Did you run those 7 voxels for each group with 3dttest++ or some other program?

> My issue is that, for one group only, when I did this I obtained slightly different values (difference ranging
> in magnitude from .0036-.0042) than what I get from running 3dmaskdump with the same voxels on
> sub-brick #10 (slope of setB wrt covariate) of the 3dttest++ (and also from pinpointing the voxels in the AFNI GUI).

Just to clarify: Are you comparing the results of the 7 voxels for one specific group with the 3dttest++ output for two groups?

Gang
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Subject Author Posted

3dttest++ covariate issue

kkerr May 28, 2015 10:50AM

Re: 3dttest++ covariate issue

gang May 28, 2015 03:00PM

Re: 3dttest++ covariate issue

kkerr May 28, 2015 04:35PM

Re: 3dttest++ covariate issue

gang May 29, 2015 11:12AM

Re: 3dttest++ covariate issue

kkerr June 03, 2015 01:34PM

Re: 3dttest++ covariate issue

gang June 03, 2015 04:30PM