Hi MAtthew,
Thanks for your reply.
I obtained the raw tstats with TFCE.
Best,
Catherine
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C. C. S. Delnooz , MD
Resident in neurology
Department of Neurology (HP 935)
Radboud University Nijmegen Medical Center
Donders Institute for Brain, Cognition and Behaviour
PO Box 9101
6500 HB Nijmegen
The Netherlands
phone: +31-24-3665094 (UMCN)
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-----Oorspronkelijk bericht-----
Van: FSL - FMRIB's Software Library [mailto:[log in to unmask]] Namens Matthew Webster
Verzonden: maandag 21 februari 2011 15:24
Aan: [log in to unmask]
Onderwerp: Re: [FSL] Randomise: error deltaT
Hello,
How are you obtaining the values in the raw tstats - did you run randomise without TFCE first?
Many Regards
Matthew
> Hi,
>
> I've just ran an analysis using randomise (in TBSS process). The design I use, is a triple t-test consisting of controls, patients_session1, patients_session2, patients_session3. After a first round of permutation the programs failes with the following error:
>
> An exception has been thrown.
> error: tfce requires a positive deltaT input
>
> As suggested in an e-mail of june 2010 (see this library) I checked the max in the raw T-stats using fslview. Max = 68. min = 0.
>
> Is it nevertheless a problemof a negative T or another issue??
>
> Best,
> Catherine
>
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