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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December 22, 2021 06:29PM
Hi Gang--

Following up...

Quote

However, you may consider using 3dttest++ or 3dRegAna for your next question.

Do you have suggestions for how to implement a shared-variance analysis with 3dttest++ or 3dRegAna?

I would think it could be done with just 3dMVM, with a little work beforehand in Matlab or Excel. For example, say we have predictor variables X and Y that are correlated and we want to see the relation of their shared variance to Z. What if I were to enter two qvars into 3dMEMA: 1) X residualized against Y (i.e., X with no shared variance with Y in it); and 2) just X. Wouldn't the marginal effect of X in this model give me what I'm looking for? Check my thinking?

Many thanks!

Paul
Subject Author Posted

3dMVM beginner question: one group, two qvars

paul.hamilton December 15, 2021 06:57PM

Re: 3dMVM beginner question: one group, two qvars

gang December 16, 2021 08:41AM

Re: 3dMVM beginner question: one group, two qvars

paul.hamilton December 17, 2021 09:04AM

Re: 3dMVM beginner question: one group, two qvars

gang December 17, 2021 09:13AM

Re: 3dMVM beginner question: one group, two qvars

paul.hamilton December 22, 2021 06:29PM

Re: 3dMVM beginner question: one group, two qvars

gang December 27, 2021 12:01PM

Re: 3dMVM beginner question: one group, two qvars

paul.hamilton January 07, 2022 12:12AM

Re: 3dMVM beginner question: one group, two qvars

gang December 27, 2021 12:00PM