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
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer