[pymvpa] Fwd: Data import with pynifti

[Roberto Guidotti]

Well, I opened some images with MRICro, and the scaling parameters are
setted like first one (17.0, 19.0) and also with SPM and Matlab I have for
each image the same values.

Probably the Nifti-Python library store only the first image value for all
the others, but practically I'm sure that my data are managed correctly! :)

RG



2011/3/29 Yaroslav Halchenko <debian at onerussian.com>

> interesting how come they got different scaling parameters... I assume
> if prior conversion/preprocessing was somewhat uniform they all should
> have had either set them to some values (like the 1st one) or just to 0
> (like the rest).  probably all others were simply resliced into the
> first one ;)
>
> and each image corresponds just to a single volume, thus not to a
> "chunk" thus previously you had 0th sample as an outlier -- its values
> were not scaled properly upon providing its NiftiImage into
> NiftiDataset.  now things should be better (I hope ;) )
>
>
> On Tue, 29 Mar 2011, Roberto Guidotti wrote:
>
> >    I'm so interested in the discussion, I hope you are not bored!! ;)
> >    The output of line code you post is:
> >    17.0 19.0
> >    0.0 0.0
> >    0.0 0.0
> >    [and other couple of zeros!!]
> >    So I open file as NiftiImage and append every *.img in a list and then
> >    load into a NiftiDataset!!!
> >    RG
> --
> =------------------------------------------------------------------=
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> Yaroslav Halchenko                 www.ohloh.net/accounts/yarikoptic
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