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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August 03, 2013 06:15PM
Otto,

Even with a mask, a t-test on only 7 subjects is going to have a hard time finding a large enough set of significant voxels to give you a q-value in the range that you would like. See this thread for similar advice.

As for the 3dClustSim... You need to estimate the smoothness of each of your subjects via 3dFWHMx and then average that smoothness value as your inputs for 3dClustSim. If you used afni_proc.py to generate your analyses with the -regress_est_blur_errts option, then the script will automatically generate a blur_est.${Subject}.1D for each subject that you can use.

Some recent threads of similar discussions:
[afni.nimh.nih.gov]
[afni.nimh.nih.gov]
[afni.nimh.nih.gov]
Subject Author Posted

Otto: viewing 3dttest++ results

otto August 02, 2013 08:21PM

Re: Otto: viewing 3dttest++ results

Peter Molfese August 02, 2013 10:31PM

Otto: need to add 3dClustSim & 3drefit?

otto August 03, 2013 05:07PM

Re: Otto: need to add 3dClustSim & 3drefit?

Peter Molfese August 03, 2013 06:15PM

Otto: manual for uber_ttest.py?

otto August 05, 2013 08:10PM

Re: Otto: manual for uber_ttest.py?

rick reynolds August 05, 2013 08:43PM

Otto: uber_ttest.py: interpreter error

otto August 07, 2013 05:02PM

Re: Otto: uber_ttest.py: interpreter error

rick reynolds August 07, 2013 09:46PM

Otto: python version 2.7 used

otto August 08, 2013 09:26PM

Re: Otto: python version 2.7 used

rick reynolds August 09, 2013 08:18AM

Otto: python error: interpreter not initailized

otto August 10, 2013 11:42PM

Re: Otto: python error: interpreter not initailized

rick reynolds August 12, 2013 09:17AM

Otto: python2.7 path set wrong?

otto August 14, 2013 02:04PM

Re: Otto: python2.7 path set wrong?

rick reynolds August 14, 2013 03:53PM

Otto: uber_ttest works now

otto August 16, 2013 06:34PM