Dear all,
we are using randomise_parallel to perform an F-test with three groups (N=168 subjects). There is no problem with 500 permutations, but when 5000 permutations are used the computer freezes, and the mouse and keyboard don't respond. This problem doesn't arise when two groups are compared (T-test) using a smaller sample (N=44 subjects). All these analyses are being performed in a workstation with 32 cores, and we have chosen 30 cores in the FSL preferences (though we don't really know if that is correct...)
Is there any parameters that need to be modified in FSL/Matlab to use this number of permutations (i.e., 5000) with larger samples (i.e., 150-200 subjects) in randomise_parallel?
Thank you in advance.
Best,
Jose
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