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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November 19, 2019 10:24AM
Hi Peng,

Oh good, just checking. I was feeling a bit decaffeinated this morning and didn't dig into it originally. You lose one degree of freedom for the intercept and one for your covariate. Yes, the DF is consistent across voxels. You could allow DFs to vary across voxels with options in 3dttest++, but then my ability to guide you in the process of interpreting the results requires incantations and a deck of tarot cards. Best to stick to tried and true.

Worth noting that you can also find this correlation using other methods (though I prefer 3dttest++), outlined here.

-Peter
Subject Author Posted

Error in using 3dRegAna command

Peng Ren November 17, 2019 05:11AM

Re: Error in using 3dRegAna command

gang November 18, 2019 12:43AM

Re: Error in using 3dRegAna command

Peng Ren November 18, 2019 09:21AM

Re: Error in using 3dRegAna command

Peter Molfese November 18, 2019 12:24PM

Re: Error in using 3dRegAna command

Peng Ren November 18, 2019 10:42PM

Re: Error in using 3dRegAna command

Peter Molfese November 19, 2019 09:04AM

Re: Error in using 3dRegAna command

Peng Ren November 19, 2019 09:36AM

Re: Error in using 3dRegAna command

Peter Molfese November 19, 2019 09:52AM

Re: Error in using 3dRegAna command

Peng Ren November 19, 2019 09:58AM

Re: Error in using 3dRegAna command

Peter Molfese November 19, 2019 10:24AM

Re: Error in using 3dRegAna command

Peng Ren November 19, 2019 10:32AM