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Dear AFNI users-

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Sincerely, AFNI HQ

History of AFNI updates  

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April 25, 2015 12:11PM
Hi Everyone,

I am trying to run 1dSVAR on an individual subj level and can't seem to get the model to work..am I specifying something incorrectly in the spec matrix?

This is the error I get:

Error in SVAR(x = fm, estmethod = "direct", Amat = instMat, Bmat = bb, :

Model is not identified,
choose different settings for 'Amat' and/or 'Bmat'.



This is my Matrix...

L_MT L_V4color L_fef L_ip L_it L_lpfc L_v1 R_MT R_V4color R_fef R_ip R_it R_lpfc R_v1
L_MT 0 0 NA 1 0 NA 1 NA 0 NA NA 0 NA NA
L_V4color 0 0 0 0 1 NA 1 0 NA 0 0 NA NA NA
L_fef NA 0 0 1 0 1 NA NA 0 NA NA 0 NA NA
L_ip NA 0 1 0 0 NA NA NA 0 NA NA 0 NA NA
L_it 0 1 0 0 0 NA NA 0 NA 0 0 NA NA NA
L_lpfc NA NA 1 NA NA 0 NA NA NA NA NA NA NA NA
L_v1 1 1 NA NA NA NA 0 NA NA NA NA NA NA NA
R_MT NA 0 NA NA 0 NA NA 0 0 NA 1 0 NA 1
R_V4color 0 NA 0 0 NA NA NA 0 0 0 0 1 NA 1
R_fef NA 0 NA NA 0 NA NA NA 0 0 1 0 1 NA
R_ip NA 0 NA NA 0 NA NA 1 0 1 0 0 NA NA
R_it 0 NA 0 0 NA NA NA 0 1 0 0 0 NA NA
R_lpfc NA NA NA NA NA NA NA NA NA 1 NA NA 0 NA
R_v1 0 NA NA NA NA NA NA 1 1 NA NA NA NA 0



Best,

Andrew
Subject Author Posted

1dSVAR Model/Spec Matrix help

Andrew_Lynn April 25, 2015 12:11PM

Re: 1dSVAR Model/Spec Matrix help

Andrew_Lynn April 25, 2015 01:41PM