[Neuroimaging] Dipy Questions

[Eleftherios Garyfallidis]

Hi Gabriela,

It seems that your are probably generating random seeds every time you run
the tracking algorithm. That means that the tracking starts at different
positions.

One direction of action is to set the random state (also known as seed)
using numpy. It would help a lot if you could share your code so we can see
exactly how you are running the tracking and suggest different solutions.
But it is definitely something we have dealt in the past and I think we can
fix.

Best regards,
Eleftherios



On Tue, Nov 29, 2016 at 5:14 PM Gabriela Asturias <
gabriela.asturias at duke.edu> wrote:

> To whom it may concern,
>
>
> I hope this email finds you all well. I have a few questions concerning
> the dipy software.
>
> I am currently working on my thesis on the effect of repetitive
> Transcranial Magnetic Stimulation on the structural connectome in patients
> with Major Depressive Disorder. When I perform the tractography step
> using dipy on multiple iterations of the same data the results are not
> consistent. We ran 5-10 iterations of nine subjects and 91.78% if
> iterations had a perfect correlation. Could you help me understand what are
> the potential sources of variability in the dipy software that are
> producing these results?
>
> Thank you very much for your time.
>
> Best wishes,
>
> *Gabriela Asturias*
>
>
> Neuroscience & Pre-Med
>
> Duke University,  2017
>
> Tel: (919) 808-8103
>
> gabriela.asturias at duke.edu
> _______________________________________________
> Neuroimaging mailing list
> Neuroimaging at python.org
> https://mail.python.org/mailman/listinfo/neuroimaging
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/neuroimaging/attachments/20161130/08dff316/attachment.html>