[Neuroimaging] [Dipy] Problem with QuickBundle

Eleftherios Garyfallidis garyfallidis at gmail.com
Tue Jul 14 22:34:29 CEST 2015


Okay you are using the released version of Dipy.

Can you try to run this tutorial in your computer and tell me if it works
for you?

https://github.com/nipy/dipy/blob/maint/0.9.x/doc/examples/segment_quickbundles.py


On Tue, Jul 14, 2015 at 4:30 PM, Ignacio Javier Osorio Wallace <
iosorio at udec.cl> wrote:

> it prints: 0.9.2
>
>
> El 2015-07-14 16:57, Eleftherios Garyfallidis escribió:
>
>> And what
>>
>> dipy.__version__
>>
>> is giving you?
>>
>> On Tue, Jul 14, 2015 at 3:47 PM, Ignacio Javier Osorio Wallace
>> <iosorio at udec.cl> wrote:
>>
>>  Hi Eleftherios,
>>>
>>> Thanks for replying so soon.
>>>
>>> What i got from dipy.get_info() was:
>>>
>>> {'sys_version': '2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500
>>> 32 bit (Intel)]', 'commit_source': '(none found)', 'np_version':
>>> '1.9.2', 'commit_hash': '<not found>', 'pkg_path':
>>> 'C:\Python27\lib\site-packages\dipy', 'sys_executable':
>>> 'C:\Python27\python.exe', 'sys_platform': 'win32'}
>>>
>>> I hope this will help.
>>>
>>> Many thanks,
>>> Ignacio.
>>>
>>> El 2015-07-13 19:15, Eleftherios Garyfallidis escribió:
>>>
>>> Hi Ignacio,
>>>
>>> Thank you for your question. We are currently changing the API of
>>> QuickBundles. Most likely you are using the documentation from the
>>> development version but running code from a released version?
>>>
>>> Can you try
>>>
>>> import dipy
>>> dipy.get_info()
>>>
>>> and tell me here what you are getting?
>>>
>>> Many thanks,
>>> Eleftherios
>>>
>>> On Mon, Jul 13, 2015 at 6:00 PM, Ignacio Javier Osorio Wallace
>>> <iosorio at udec.cl> wrote:
>>>
>>> Hello there, my name is Ignacio Osorio Wallace, I'm an electronic
>>> engineer student at Concepcion University (Chile). I'm currently
>>> working on the creating of a software that could use your library
>>> to
>>> reconstruct and segment brain fiber from the NIfTI1Image objects.
>>>
>>> I followed your examples to get a hint of how to work with Dipy.
>>> And I'm having some problems with the QuickBundle. The specific
>>> problem is shown here:
>>>
>>> """
>>> Traceback (most recent call last):
>>>   File
>>> "/home/cocobio/MEGA/2015/Python/Project/segment_quickbundles.py",
>>> line 43, in <module>
>>>     clusters = qb.cluster(streamlines)
>>>   File
>>> "/usr/local/lib/python2.7/dist-packages/dipy/segment/clustering.py",
>>> line 459, in cluster
>>>     ordering=ordering)
>>>   File "dipy/segment/clustering_algorithms.pyx", line 111, in
>>> dipy.segment.clustering_algorithms.quickbundles
>>> (dipy/segment/clustering_algorithms.c:3179)
>>>   File "dipy/segment/clusteringspeed.pyx", line 273, in
>>> dipy.segment.clusteringspeed.QuickBundles.assignment_step
>>> (dipy/segment/clusteringspeed.c:3840)
>>> ValueError: Data features' shapes must be compatible according to
>>> the metric used!
>>> """
>>>
>>> I think I'm not doing anything wrong, since this is the example
>>> code provided by the Dipy web-page. The reconstruction and tracking
>>> using ODF is working perfectly.
>>>
>>> If you could help in any way, I will greatly appreciate.
>>>
>>> Thanks for your time. And I hope my English didn't sound to casual.
>>>
>>> Ignacio Osorio Wallace.
>>> _______________________________________________
>>> Neuroimaging mailing list
>>> Neuroimaging at python.org
>>> https://mail.python.org/mailman/listinfo/neuroimaging [1] [1]
>>>
>>> Links:
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>>> [1] https://mail.python.org/mailman/listinfo/neuroimaging [1]
>>>
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>>>
>>
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>>
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