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Numpy array or list of random signs

asked 2013-08-24 18:28:40 +0200

mresimulator gravatar image

Hi experts!

How can I obtain a numpy array or list of 'N'random signs? for example:

[1, -1, 1, 1 , -1, -1, 1 , 1, 1]

where N = 9.

Waiting for your answers.

Thanks a lot!

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answered 2013-08-24 20:36:24 +0200

Luca gravatar image

In pure python:

import random
[(-1)**random.randint(0,1) for i in range(9)]
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Thanks Luca!!

mresimulator gravatar imagemresimulator ( 2013-08-24 21:32:48 +0200 )edit

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Asked: 2013-08-24 18:28:40 +0200

Seen: 1,602 times

Last updated: Aug 24 '13