[Numpy-discussion] problems with index arrays and byte order
Albert Strasheim
fullung at gmail.com
Tue May 9 05:36:16 EDT 2006
Hello all
The issue Chris mentioned seems to be fixed in r2487 (did this happen in
r2480 or was it another change that fixed it?).
http://projects.scipy.org/scipy/numpy/changeset/2480
>>> import numpy
>>> a = numpy.array([1,2,3,4,5,6],'>f8')
>>> a[3:5]
array([ 4., 5.])
>>>
>>> a[[3,4]]
array([ 4., 5.])
>>> a[numpy.array([3,4])]
array([ 4., 5.])
>>> numpy.__version__
'0.9.7.2487'
Regards,
Albert
> -----Original Message-----
> From: numpy-discussion-admin at lists.sourceforge.net [mailto:numpy-
> discussion-admin at lists.sourceforge.net] On Behalf Of Christopher Hanley
> Sent: 08 May 2006 22:50
> To: numpy-discussion
> Subject: [Numpy-discussion] problems with index arrays and byte order
>
> Greetings,
>
> The following example was uncovered by a pyfits user during testing. It
> appears that there is a significant problem with index array handling
> byte order properly.
>
> Example:
>
> >>> import numpy
> >>> a = numpy.array([1,2,3,4,5,6],'>f8')
> >>> a[3:5]
> array([ 4., 5.])
> >>> a[[3,4]]
> array([ 2.05531309e-320, 2.56123631e-320])
> >>> a[numpy.array([3,4])]
> array([ 2.05531309e-320, 2.56123631e-320])
> >>> numpy.__version__
> '0.9.7.2477'
>
> This test was conducted on a Red Hat Enterprise system.
>
> Chris
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