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Hi Steve Thanks a lot. Regards Juergen On 14.11.2008 12:09 Uhr, "Steve Smith" <[log in to unmask]> wrote: > Hi - no, we can do this - the program is "vecreg" and can take in > either vectors or tensors, and can apply either FLIRT affine matrices > or FNIRT warp fields. > > Cheers. > > > On 13 Nov 2008, at 22:34, Gwenaëlle DOUAUD wrote: > >> Hi, >> >> yes, the idea is that you're dealing here with _vectors_ so 3D >> entities, not scalar ones (hence the 28x3 when you split it, each V1 >> map being 4D with 3 components corresponding to the x, y and z >> projections of V1 on the 4th dimension)... I don't think you can use >> tbss_non_FA on those maps as we can't apply fnirt warpfield to >> vectors yet (Saad/Steve, am I right?). >> >> Hope this helps, >> Gwenaëlle >> >> >> --- En date de : Jeu 13.11.08, Juergen Haenggi <[log in to unmask] >>> a écrit : >> >>> De: Juergen Haenggi <[log in to unmask]> >>> Objet: [FSL] Tbss_non_FA and eigenvectors >>> À: [log in to unmask] >>> Date: Jeudi 13 Novembre 2008, 21h45 >>> Dear FSL experts >>> >>> After running tbss_non_FA on the first eigenvector there is >>> a file in the >>> stats folder called all_V1.nii.gz that is three times >>> larger in size than >>> the other files derived from the same kind of analysis (MD, >>> L1, L2, L3). >>> When using fslsplit in order to do statistics elsewhere, >>> there are "84 >>> subjects" (individual files) although only 28 subjects >>> were included in the >>> initial FA analysis. When I split up the file >>> all_L1.nii.gz, there are 28 >>> subjects. >>> The same is also true for all_V2.nii.gz and V3.nii.gz. >>> >>> Any idea? >>> >>> Thanks in advance >>> Regards >>> Juergen >>> >>> ----------------------------------------------------------- >>> Juergen Haenggi >>> Ph.D. (Dr. des.) >>> Division of Neuropsychology >>> Institute of Psychology >>> University of Zurich >>> Binzmuehlestrasse 14, PO Box 25 >>> 8050 Zurich, Switzerland >>> 0041 44 635 73 97 (phone office) >>> 0041 76 445 86 84 (phone mobile) >>> 0041 44 635 74 09 (fax office) >>> BIN 4.D.04 (office room number) >>> [log in to unmask] (email) >>> http://www.psychologie.uzh.ch/neuropsy/ (website) >>> http://www.juergenhaenggi.ch (private website) >>> ----------------------------------------------------------- >> >> >> >> > > > --------------------------------------------------------------------------- > Stephen M. Smith, Professor of Biomedical Engineering > Associate Director, Oxford University FMRIB Centre > > FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve > --------------------------------------------------------------------------- ----------------------------------------------------------- Juergen Haenggi Ph.D. (Dr. des.) Division of Neuropsychology Institute of Psychology University of Zurich Binzmuehlestrasse 14, PO Box 25 8050 Zurich, Switzerland 0041 44 635 73 97 (phone office) 0041 76 445 86 84 (phone mobile) 0041 44 635 74 09 (fax office) BIN 4.D.04 (office room number) [log in to unmask] (email) http://www.psychologie.uzh.ch/neuropsy/ (website) http://www.juergenhaenggi.ch (private website) -----------------------------------------------------------