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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August 20, 2019 11:59AM
Dear AFNI Experts,

I am trying to do nonlinear fitting to βs I got from 3dDeconvolve using 3dNLfim. Could anybody give me an example code to do that?
For better understanding my question:
I did linear regression using AM2 option in 3dDeconvolve, and fitted the βs(BOLD response to stimuli) with behavior data. Now I want to see whether nonlinear fitting works better or worse than linear regression. But I do not know where to input the behavior data when I tried to do this using 3dNLfim.
Any suggestion is welcome!

Thanks a lot!

Sally.
Subject Author Posted

Nonlinear fitting using 3dNLfim?

zjjdcrn August 20, 2019 11:59AM

Re: Nonlinear fitting using 3dNLfim?

rick reynolds August 22, 2019 12:27PM

Re: Nonlinear fitting using 3dNLfim?

zjjdcrn August 26, 2019 10:58AM

Re: Nonlinear fitting using 3dNLfim?

zjjdcrn August 30, 2019 01:02PM

Re: Nonlinear fitting using 3dNLfim?

rick reynolds September 03, 2019 12:58PM

Re: Nonlinear fitting using 3dNLfim?

zjjdcrn September 11, 2019 03:47PM