[Numpy-discussion] Slice specified axis
Jonathan T. Niehof
jniehof at lanl.gov
Mon Apr 9 12:14:44 EDT 2012
On 04/06/2012 06:54 AM, Benjamin Root wrote:
> Take a peek at how np.gradient() does it. It creates a list of None with
> a length equal to the number of dimensions, and then inserts a slice
> object in the appropriate spot in the list.
List of slice(None), correct? At least that's what I see in the source, and:
>>> a = numpy.array([[1,2],[3,4]])
>>> operator.getitem(a, (None, slice(1, 2)))
array([[[3, 4]]])
>>> operator.getitem(a, (slice(None), slice(1, 2)))
array([[2],
[4]])
--
Jonathan Niehof
ISR-3 Space Data Systems
Los Alamos National Laboratory
MS-D466
Los Alamos, NM 87545
Phone: 505-667-9595
email: jniehof at lanl.gov
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