Hi,
I'm trying to run smoothest on an unthresholded zstat map to obtain the DLH for cluster thresholding, but for some reason, I keep getting nan for the values. My colleague has no trouble running the same command on the same image and obtaining a value. My verbose output from smoothest is below. Is this something that you've encountered? I can't figure out why it works for her but not me?
bash-3.2$ smoothest -z zstat1.nii.gz -m ../MNI152lin_T1_2mm_brain_mask.nii.gz -V
verbose = 1
help = 0
dof = 100
maskname = ../MNI152lin_T1_2mm_brain_mask.nii.gz
residname = res4d
zstatname = zstat1.nii.gz
Reading mask....done
mask:: Size = (91,109,91)
mask:: ROI Size = (91,109,91)
mask:: Dims = (2,2,2)
mask:: Minimum and maximum intensities are: 0 and 1
Reading datafile....done
Data (residuals/zstat):: Size = (91,109,91,1)
Data (residuals/zstat):: ROI Size = (91,109,91,1)
Data (residuals/zstat):: Dims = (2,2,2,1)
Data (residuals/zstat):: Minimum and maximum intensities are: -5.23127 and 7.25561
Standardising....done
Masked-in voxels = 258370
SSminus[X] = nan, SSminus[Y] = nan, SSminus[Z] = nan, S2[X] = nan, S2[Y] = nan, S2[Z] = nan
DLH nan voxels^-3 before correcting for temporal DOF
FWHMx = nan voxels, FWHMy = nan voxels, FWHMz = nan voxels
FWHMx = nan mm, FWHMy = nan mm, FWHMz = nan mm
DLH nan voxels^-3
VOLUME 258370 voxels
RESELS nan voxels per resel
DLH nan
VOLUME 258370
RESELS nan
Thanks,
Matt Sutterer
|