Hi, been reading the archive looking for clues to the WARNING: posn not header size messages in my
log reports.
One question: does FSL 4.0 use nii.gz formats for intermediate files generated during FEAT?
I ask this because I attempted to do a FEAT report comparison using ANALYZE format (hdr/img) in
FSL 4.0 with that of an older FSL 3.x report. I set the FSLOUTPUTTYPE to ANALYZE, which I thought
should sidestep any nifti related warnings(such as posn not header size). However, I still
encountered them in the report log. Some investigation has led me to believe that the warnings
come from differently localized gzip/gunzip, as the same nifti files will report the warning (when
using utils such as fslhd or fslinfo) when compressed (nii.gz), but seem normal when uncompressed
(nii). Unless there are other changes when compressing a file to nii.gz, they ought be be identical, so
my conclusion was that the fslutils are using a different build of gzip/gunzip than the ones on our
machines.
Of course, the likelihood is great that our conversion tool (UCLA) is the main culprit, but in the interim, I'd like to know of possible temporary solutions.
Thanks in advance.
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