Hey Matt,
Hopefully this is the last question. I was able to resample my fmri data onto a low resolution mesh using wb_command like you suggested. This helped me get through the autocorrelation smoothing step. Only now the process quits as soon as prewhitening and model fitting starts. For example, I ran this command line:
film_gls --rn=surfstats --in2=lh.32k_custom.midthickness.surf.gii --in=lh.32k_custom.smath_01.func.gii --pd=design.mat --sa --ms=15 --epith=5 --mode=surface -v --thr=1000.0
and here are the last few lines of the output:
----------------------------
Smoothing at vertex 32300 ...
Smoothing at vertex 32400 ...
.
Completed
Tukey M = 14
Tukey estimates... Completed
Completed
Prewhitening and Computing PEs...
Percentage done:
An exception has been thrown
Runtime error:- detected by Newmat: process fails to converge
MatrixType = Rect # Rows = 12; # Cols = 12
Trace: SVD; pinv.
---------------------
Any idea what might be going on?
Thank you for helping me through this.
Connor
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