[Camino-users] problem with dtfit output

[Philip A Cook]

Good catch, Ian!

On Apr 18, 2013, at 1:30 PM, Ian Malone wrote:

> On 18/04/13 18:24, Mojdeh Zamyadi wrote:
>> dteig < camino_analysis/Eigen.Bdouble | pdview -datadims 256 256 70 -inputmodel dteig 
> 
> Is this a typo? You're passing the already processed eigenvectors through dteig again, nonsense would result.
> pdview -datadims 256 256 70 -inputmodel dteig < camino_analysis/Eigen.Bdouble
> Also, I don't know what the right -datadims for your data should be, but using -scalarfile with a header file might help to rule out a mismatch.
> 
> Final observations, your example has multiple calls to dtfit, you may as well just fit once:
> dtfit camino_analysis/DTI_ec_VoxelOrder.Bfloat camino_analysis/bvec_rot.scheme > camino_analysis/DiffTensor.Bdouble
> fa < camino_analysis/DiffTensor.Bdouble > camino_analysis/FA.Bdouble
> dteig < camino_analysis/DiffTensor.Bdouble > camino_analysis/Eigen.Bdouble
> Also, unless you only need a quick fitting for visualisation, any of the other models would be preferable to the simple linear dtfit.
> 
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