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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krisknut
February 01, 2021 02:48PM
I'm running a 3dANOVA3 with two groups (HVs & patients), with three resting state runs per participant (1,2,3) and looking for an effect over time/runs (presumably fatigue). It's not clear to me from the AFNI help text what the difference is between type 4 and type 5 in the model, and what is meant by "C(A)" for type 5? Here's the help text on the type option:
3dANOVA3
-type k type of ANOVA model to be used:
k = 1 A,B,C fixed; AxBxC
k = 2 A,B,C random; AxBxC
k = 3 A fixed; B,C random; AxBxC
k = 4 A,B fixed; C random; AxBxC
k = 5 A,B fixed; C random; AxB,BxC,C(A)

I'd appreciate any details and helpful references. Thanks.
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3dANOVA3

krisknut February 01, 2021 02:48PM

Re: 3dANOVA3

gang February 01, 2021 03:36PM