[Numpy-discussion] Problem with array assignment
Francesc Altet
faltet at carabos.com
Wed Nov 2 05:08:06 EST 2005
Hi,
I've recently upgraded to Numeric 24.0 and numarray 1.4.1 and I'm
having a problem that did not exist before:
>>> import Numeric
>>> import numarray
>>> Numeric.__version__
'24.0'
>>> numarray.__version__
'1.4.1'
>>> na=numarray.zeros((3,),'f')
>>> num=Numeric.zeros((3,),'f')
>>> na[...] = num
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ValueError: array sizes must be consistent.
but...
>>> na=numarray.zeros((3,),'i')
>>> num=Numeric.zeros((3,),'i')
>>> na[...] = num
>>> na
array([0, 0, 0])
?????
However, using Numeric 23.8 and numarray 1.3.3:
>>> import Numeric
>>> import numarray
>>> Numeric.__version__
'23.8'
>>> numarray.__version__
'1.3.3'
>>> na=numarray.zeros((3,),'f')
>>> num=Numeric.zeros((3,),'f')
>>> na[...] = num
>>> na
array([ 0., 0., 0.], type=Float32)
I don't know if the problem is coming from Numeric or numarray, but it
only happens when one mix both:
>>> Numeric.__version__
'24.0'
>>> numarray.__version__
'1.4.1'
>>> na=numarray.zeros((3,),'f')
>>> na2=numarray.zeros((3,),'f')
>>> na2[...] = na
>>> na2
array([ 0., 0., 0.], type=Float32)
>>> num=Numeric.zeros((3,),'f')
>>> num2=Numeric.zeros((3,),'f')
>>> num2[...] = num
>>> num
array([ 0., 0., 0.],'f')
Perhaps the new array protocol is involved here?
--
>0,0< Francesc Altet http://www.carabos.com/
V V Cárabos Coop. V. Enjoy Data
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