Howdy,
I’m running a univariate analysis at the group level in FSL, and FEAT spits out the following:
Post-stats
/u/project/CCN/apps/fsl/5.0.9/bin/fslmaths stats/zstat1 -mas mask thresh_zstat1
Image Exception : #3 :: Attempted to multiply images/ROIs of different sizes
terminate called after throwing an instance of ‘RBD_COMMON::BaseException’FATAL ERROR ENCOUNTERED:
COMMAND:
/u/project/CCN/apps/fsl/5.0.9/bin/fslmaths stats/zstat1 -mas mask thresh_zstat1
ERROR MESSAGE:
child killed: SIGABRT
END OF ERROR MESSAGE
child killed: SIGABRT
while executing
"if { [ catch {for { set argindex 1 } { $argindex < $argc } { incr argindex 1 } {
switch – [ lindex $argv $argindex ] {-I {
incr arginde…"
(file “/u/project/CCN/apps/fsl/5.0.9/bin/feat” line 309)
Error encountered while running in main feat script, halting.
child killed: SIGABRT
I checked the zstat1.nii.gz and mask.nii.gz images and they appear to have different dimensions. Using the fslhd command, I see that the zstat’s dimensions are 91x109x90 (in voxels) and the mask’s dimensions are 91x109x91.
My first guess was that a subject or two had gnarly dropout and their masks were messing up the group average, but I double checked my subject-level feat summaries and didn’t find anything to that effect (I also spot-checked a few subject-level masks for good measure but those were fine). Does anyone have any idea as to what may be going on here? I’m unsure what else could be wrong.