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Actually this looks like a local problem b/c I am getting the same error with analyses that worked a couple of days ago. We'll try to figure it out. Thanks! Naama On Apr 17, 2009, at 6:33 PM, Gwenaëlle DOUAUD wrote: > Hi Naama, > > I'm sure Matt would have a better idea on this, but could you > specify the command you're run and give us a simplified version (say > with 2 subjects in each group) of your .mat .con and .fts? > > Cheers, > Gwenaëlle > > > --- En date de : Sam 18.4.09, Naama Barnea-Goraly > <[log in to unmask]> a écrit : > >> De: Naama Barnea-Goraly <[log in to unmask]> >> Objet: [FSL] F-test error >> À: [log in to unmask] >> Date: Samedi 18 Avril 2009, 2h19 >> I am trying to run an F-test to look for FA differences >> between 3 groups, but get the following error message: >> >> 8.54992e+08 permutations required for exhaustive test of >> t-test 1 >> Doing 500 random permutations >> Starting permutation 1 (Unpermuted data) >> ERROR: Program failed >> >> An exception has been thrown >> Logic error:- detected by Newmat: index error: requested >> indices = 1, 1 >> >> MatrixType = Rect # Rows = 0; # Cols = 1 >> >> >> Exiting >> >> >> Any ideas what might be wrong? >> >> Thanks, >> >> Naama >> >> >> >> >> >> Naama Barnea-Goraly M.D. >> Instructor >> Center for Interdisciplinary Brain Sciences Research >> Stanford University Division of Child and Adolescent >> Psychiatry >> 401 Quarry Rd. MC 5795 >> Stanford University School of Medicine >> Stanford, CA 94305-5795 >> Phone: (650) 736-1874, fax: (650) 724-4794 >> >> >> CONFIDENTIALITY NOTICE: This e-mail communication and any >> attachments may contain confidential information for the use >> of the designated recipients named above. If you are not >> the intended recipient, you are hereby notified that you >> have received this communication in error and that any >> review, disclosure, dissemination, distribution or copying >> of it or its contents is prohibited. If you have received >> this communication in error, please notify Stanford Medical >> Center immediately by telephone at (650) 725-5722 and >> destroy all copies of this communication and any >> attachments. Thank you. > > > Naama Barnea-Goraly M.D. Instructor Center for Interdisciplinary Brain Sciences Research Stanford University Division of Child and Adolescent Psychiatry 401 Quarry Rd. MC 5795 Stanford University School of Medicine Stanford, CA 94305-5795 Phone: (650) 736-1874, fax: (650) 724-4794 CONFIDENTIALITY NOTICE: This e-mail communication and any attachments may contain confidential information for the use of the designated recipients named above. If you are not the intended recipient, you are hereby notified that you have received this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its contents is prohibited. If you have received this communication in error, please notify Stanford Medical Center immediately by telephone at (650) 725-5722 and destroy all copies of this communication and any attachments. Thank you.