Hi - I try to analyze an EP image series created with AFNI using the
GLM-module of FSL. I used 3dAFNItoANALYZE provided by AFNI to transform the
EP BRIK to an 4D-Analyze-File. The size of this file is either around 630 MB
(voxel values stored as integer) or 1.3GB (voxel values stored as floating
point) and it contains 1280 volumes of one session.
The analysis with FEAT doesn't work with either of the two files. More
specifically, the command
/usr/local/fsl/bin/film_gls -rn stats -noest filtered_func_data design.mat
fails and is apparently unable to read to file.
My computer: Red Hat Linux 9, Intel P-4, 1GB RAM, 2GB swap space
Does this problem stem from insufficient swap space? The analysis with AFNI
works fine, but I would be happy to use the more advanced features such as
prewhitening etc. provided by FSL. How much memory do you recommend for
input file sizes as quoted above? Can this failure be caused by a different