[SciPy-User] creating a view of an array
mathieu lacage
mathieu.lacage at alcmeon.com
Sat Jul 30 16:39:40 EDT 2011
hi,
Let's say I have a big large array:
a = numpy.empty((10000*1000,10))
and I want to create a view of that array to be able to process a subset of
its data without making a copy.
One column:
b = a[:,1]
Two adjacent columns:
b = a[:,1:2]
Can I do the same (no memory allocation) for two columns that are not
adjacent ? i.e. if I want to create an array that is a view for the 1st and
3rd columns.
Mathieu
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