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.