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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July 23, 2021 06:18PM
I was just responding to your previous message while your update came in! Yes, you already found out the problem: when MEdu = 2, there are no Female subjects in the LR group:

Sex
Group Female Male
HR 7 12
LR 0 3

> Is there a way to still include Sex as a factor without the program erroring out?

Unfortunately you cannot have both Sex and MEdu in the same model using 3dMVM, but I'm not sure why the model 'Group+Sex' failed. If you want me to dig it deeper, I may have to ask you to share a testing dataset for diagnosis.

On the other hand, try using 3dttest++ with -1/1 coding for Sex ang MEdu, and it may work in this case.

Gang



Edited 2 time(s). Last edit at 07/24/2021 10:26AM by Gang.
Subject Author Posted

3dttest++ - coding categorical covariates?

janelleliu July 02, 2021 05:54PM

Re: 3dttest++ - coding categorical covariates?

gang July 03, 2021 06:06PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 06, 2021 12:31PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 07, 2021 04:00PM

Re: 3dttest++ - coding categorical covariates?

gang July 08, 2021 07:38PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 13, 2021 02:52PM

Re: 3dttest++ - coding categorical covariates?

gang July 14, 2021 12:55PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 14, 2021 01:36PM

Re: 3dttest++ - coding categorical covariates?

gang July 14, 2021 05:16PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 14, 2021 06:39PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 23, 2021 04:07PM

Re: 3dttest++ - coding categorical covariates?

janelleliu July 23, 2021 05:28PM

Re: 3dttest++ - coding categorical covariates?

gang July 23, 2021 06:18PM