Hi AFNI Gurus,
This might be a very simple fix, I have used similar GLT coding for 3dMVM before so seeing errors because now is quite perplexing.
Failed at GLT No. 1! Make sure that the model or GLT specification syntax is correct.
In summary.Anova.mlm(object$Anova, multivariate = FALSE) :
Singular error SSP matrix:
-gltLabel 1 F-B -gltCode 1 ‘Scan : 1F -1B’
Subj Intervention Scan R3M R6M R12M InputFile
003 MI B 2 1 2 stats.003-1_REML+tlrc \
Any help would be much appreciated.
Ben, could you share the first few lines of your 3dMVM script?
3dMVM -prefix 3dMVM_cond_scan -jobs 4
-gltLabel 1 F-B -gltCode 1 ‘Scan : 1F -1B’ \
How does the contingency table look like for Intervention and Scan? Does any “Intervention” group have a missing Scan level?
It is complete. It seems to run with no issues if I remove the GLTs, but I am noticing now that the F tests are coming back with 0s.