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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dlhuynh
October 09, 2018 12:33PM
Hi Gang et al.,

I am trying 3dMVM for a repeated-measures ANOVA where I have 3 within-subjects factors (A, B, C), and no between-subjects factors:

3dMVM - prefix rm_mvm \
- jobs 8 \
- bsVars 1 \
- wsVars 'A*B*C' \
- dataTable
Subj A B C InputFile \
.. .. .. .. ..
.. .. .. .. ..

I have 20 subjects, A has 4 levels, B has 2, C has 3. All are nested in the table. For a first try, I did not include any glt.

I got this error: " Model test failed! Possible reasons: 1) .. 2) .. ... 5) .. Quitting due to model test failure ..."

I have a few questions:
1) Is A*B*C the same as A+B+C+A:B+A:C+B:C+A:B:C ? I actually got the same error with the latter. How can specify such model in 3dMVM?
2) How can I specify 'Subj' as a random effect in the model? In 3dLME I see the option -ranEff but I don't know whether this option can be used for 3dMVM.

Thanks for your help.
Duong
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Subject Author Posted

3dMVM model specification

dlhuynh October 09, 2018 12:33PM

Re: 3dMVM model specification

gang October 10, 2018 08:51AM

Re: 3dMVM model specification

dlhuynh October 10, 2018 11:32AM