<p dir="ltr">Hi Romain,</p>
<p dir="ltr">Yes, we've had reports of people having trouble with the new dwi2response app. This is something we're going to be looking into in the near future... </p>
<p dir="ltr">Cheers,<br>
Donald</p>
<p dir="ltr">--<br>
Dr J-Donald Tournier (PhD)</p>
<p dir="ltr">Senior Lecturer, Biomedical Engineering<br>
Division of Imaging Sciences & Biomedical Engineering<br>
King's College London</p>
<p dir="ltr">A: Department of Perinatal Imaging & Health, 1st Floor South Wing, St Thomas' Hospital, London. SE1 7EH<br>
T: +44 (0)20 7188 7118 ext 53613<br>
W: <a href="http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering">http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering</a><br>
</p>
<div class="gmail_quote">On 16 Jun 2014 16:49, "romain valabregue" <<a href="mailto:romain.valabregue@upmc.fr">romain.valabregue@upmc.fr</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello<br>
<br>
I get an error on several dataset with de dwi2response :<br>
<br>
dwi2response -grad grad.b -mask mask_erode3.nii -sf sf_out.nii rfsl_eddycor.nii resp.txt<br>
<br>
dwi2response: initialising response function... 100%<br>
dwi2response: optimising response function.. . gsl: lib/math/cholesky.cpp:151: ERROR: matrix must be positive definite<br>
Default GSL error handler invoked.<br>
Abandon<br>
<br>
It takes quite a long time before getting the error (about 1/2 an to 1 hour)<br>
<br>
<br>
Although it works ok with connectome B3000 data, I have problem with other data set that was working before with mrtrix2<br>
<br>
Many thanks<br>
<br>
Romain<br>
<br>
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