afni.nimh.nih.gov

Hi Gang

I have a question about how to set up the specification matrix for instantaneous effects in 1dSVAR. I would like to set up a network of 4 ROIs with 4 paths:

Aud Vis STS IFG
Aud 0 0 NA 0
Vis 0 0 NA 0
STS 0 0 0 NA
IFG 0 0 NA 0

When I enter this specification matrix, I get the following error:

[1] "No. 1 file just read in: 4ROI_spec.txt"
Error: object 'SEM' not found

Am I setting up the matrix incorrectly?

Thanks!

Audrey