numpy arrays
Heli
hemla21 at gmail.com
Wed Mar 23 06:06:56 EDT 2016
Hi,
I have a 2D numpy array like this:
[[1,2,3,4],
[1,2,3,4],
[1,2,3,4]
[1,2,3,4]]
Is there any fast way to convert this array to
[[1,1,1,1],
[2,2,2,2]
[3,3,3,3]
[4,4,4,4]]
In general I would need to retrieve every nth element of the interior arrays in to single arrays. I know I can loop over and do this, but I have really big arrays and I need the fastest way to do this.
Thanks for your help,
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