The ces stack has had the medial wall masked out so all the values there are 0. When you specify --wls, it normalizes the weights across subject. However, in the medial wall, all the weights are 0 (can't divide by 0, so it throws an error.
On 2/18/2020 5:35 PM, Nasiriavanaki, Zahra wrote:
Hi Freesurferers
I am running mri_glmfit on a group data using --no-prune flag. i 'm getting the below error. I appreciate if you could let me know what the issue is.
Loading y from /autofs/space/oprah_001/users/zn025/looming_3T/group_levels/patients_20/loom.lh/aw/ces.nii.gz ... done reading. Saving design matrix to main2.wls/Xg.dat Computing normalized matrix Normalized matrix condition is 1 Matrix condition is 1 Found 149955 points in label. Found 149955 voxels in mask Saving mask to main2.wls/mask.nii.gz Reshaping mriglm->mask... search space = 74612.583051 ERROR: MRInormWeights: value less than or eq to 0. c=336, r=0, s=0, v=0
Thanks Mona
*Zahra (Mona) Nasiriavanaki*
Postdoctoral Research Fellow
Martinos Center for Biomedical Imaging
Massachusetts General Hospital
149 13th Street, 149-2615
Charlestown, MA, USA, 02129
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