Hi,
Changing the display range doesn't seem to do anything, and trying to get a
histogram crashes fslview ;-(
Any other suggestions?
Suzanna
------
Does the FA image look ok if you change the FSLView display
range to 0:1? What does the histogram look like? Cheers
On Fri, 19 Jan 2007 16:06:45 -0000, Suzanna Laycock
<[log in to unmask]> wrote:
>Thanks - that's worked, and has generated all the relevant files.
>
>However, if I open dti_FA (and some others) in MRIcro or FSL_View,
>there doesn't appear to be an image, although the .img file has 4480KB
>of data in it. The dti_S0 file opens in MRIcro and produces an image.
>
>Any suggestions?
>
>Thanks in advance
>Suzanna
>
>-----Original Message-----
>From: FSL - FMRIB's Software Library
>[mailto:[log in to unmask]] On Behalf Of Andreas Bartsch
>Sent: 19 January 2007 15:19
>To: [log in to unmask]
>Subject: [FSL] AW: [FSL] Running DTIFIT
>
>
>Hi,
>
>The bvals / bvecs seem to be recognized as directories. Your
>files are *.txt's so try mv bvals.txt bvals mv bvecs.txt bvecs
>And run again.
>Cheers-
>Andreas
>
>-----Ursprüngliche Nachricht-----
>Von: FSL - FMRIB's Software Library [mailto:[log in to unmask]]
>Im Auftrag von Suzanna Laycock
>Gesendet: Freitag, 19. Januar 2007 16:14
>An: [log in to unmask]
>Betreff: [FSL] Running DTIFIT
>
>Hi,
>
>I'm having problems running dtifit, and get the following error
>message. My files are saved in analyze format. In my subject
>folder, I have individual files for data, bvecs.txt, bvals.txt,
>nodif, nodif_brain_mask.
>
>$ dtifit -k data -r bvecs -b bvals -m nodif_brain_mask -o dti 0
>128 0 128 0 70 0 slices processed Aborted (core dumped)
>
>Running bedpost_datacheck (as seems to be advised in the
>previous archives) produces this.
>
>Suzanna@suzanna /usr/local/fsl/bin
>$ bedpost_datacheck ~/FSL_DATA/99027 /home/Suzanna/FSL_DATA/99027/data
>dim1 128
>dim2 128
>dim3 70
>dim4 35
>datatype 4
>pixdim1 -1.7500000000
>pixdim2 1.7500000000
>pixdim3 2.0000000000
>pixdim4 1.0000000000
>cal_max 0.0000
>cal_min 0.0000
>glmax 0
>glmin 0
>origin1 0
>origin2 0
>origin3 0
>file_type ANALYZE-7.5
>
>/home/Suzanna/FSL_DATA/99027/nodif
>dim1 128
>dim2 128
>dim3 70
>dim4 1
>datatype 4
>pixdim1 -1.7500000000
>pixdim2 1.7500000000
>pixdim3 2.0000000000
>pixdim4 1.0000000000
>cal_max 0.0000
>cal_min 0.0000
>glmax 0
>glmin 0
>origin1 0
>origin2 0
>origin3 0
>file_type ANALYZE-7.5
>
>/home/Suzanna/FSL_DATA/99027/nodif_brain_mask
>dim1 128
>dim2 128
>dim3 70
>dim4 1
>datatype 4
>pixdim1 -1.7500000000
>pixdim2 1.7500000000
>pixdim3 2.0000000000
>pixdim4 1.0000000000
>cal_max 1.0000
>cal_min 0.0000
>glmax 0
>glmin 0
>origin1 0
>origin2 0
>origin3 0
>file_type ANALYZE-7.5
>
> num lines in /home/Suzanna/FSL_DATA/99027/bvals
>cat: /home/Suzanna/FSL_DATA/99027/bvals: Is a directory 0 num
>words in /home/Suzanna/FSL_DATA/99027/bvals
>cat: /home/Suzanna/FSL_DATA/99027/bvals: Is a directory 0 num
>lines in /home/Suzanna/FSL_DATA/99027/bvecs
>cat: /home/Suzanna/FSL_DATA/99027/bvecs: Is a directory 0 num
>words in /home/Suzanna/FSL_DATA/99027/bvecs
>cat: /home/Suzanna/FSL_DATA/99027/bvecs: Is a directory 0
>cat: /home/Suzanna/FSL_DATA/99027/bvals: Is a directory
>cat: /home/Suzanna/FSL_DATA/99027/bvecs: Is a directory
>cat: /home/Suzanna/FSL_DATA/99027/bvecs: Is a directory Runtime
>error (func=(main), adr=3): Divide by zero
>/usr/local/fsl/bin/bedpost_datacheck: line 48: [: -ne: unary
>operator expected number of elements in bvals is not equal to
>number of vols in data
>/usr/local/fsl/bin/bedpost_datacheck: line 54: [: -ne: unary
>operator expected
>
>Any suggestions? Sorry, my computer skills are pretty poor!
>
>Thanks
>Suzanna ===========================================================
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