[Mrtrix-discussion] dwi2response fsl error

[romain valabregue]

Hello

I get an error on several dataset with de dwi2response :

  dwi2response -grad grad.b -mask mask_erode3.nii  -sf sf_out.nii 
rfsl_eddycor.nii resp.txt

dwi2response: initialising response function...  100%
dwi2response: optimising response function..   .   gsl: 
lib/math/cholesky.cpp:151: ERROR: matrix must be positive definite
Default GSL error handler invoked.
Abandon

It takes quite a long time before getting the error (about 1/2 an to 1 hour)


Although it works ok with connectome B3000 data, I have problem with 
other data set that was working before with mrtrix2

Many thanks

Romain