On 24 January 2014 23:09, Dinesh Vadhia <dineshbvad...@hotmail.com> wrote:
> Francesc: Thanks. I looked at numexpr a few years back but it didn't
> support array slicing/indexing. Has that changed?
>
No, but you can do it yourself.
big_array = np.empty(20000)
piece = big_array[30:-50]
ne.evaluate('sqrt(piece)')
Here, creating "piece" does not increase memory use, as slicing shares the
original data (well, actually, it adds a mere 80 bytes, the overhead of an
array).
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