[Numpy-discussion] array comprehension
faltet at gmail.com
Fri Nov 4 10:12:11 EDT 2016
2016-11-04 14:36 GMT+01:00 Neal Becker <ndbecker2 at gmail.com>:
> Francesc Alted wrote:
> > 2016-11-04 13:06 GMT+01:00 Neal Becker <ndbecker2 at gmail.com>:
> >> I find I often write:
> >> np.array ([some list comprehension])
> >> mainly because list comprehensions are just so sweet.
> >> But I imagine this isn't particularly efficient.
> > Right. Using a generator and np.fromiter() will avoid the creation of
> > intermediate list. Something like:
> > np.fromiter((i for i in range(x))) # use xrange for Python 2
> Does this generalize to >1 dimensions?
A reshape() is not enough? What do you want to do exactly?
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