8000 Add axis option to numpy.random.shuffle · Issue #11583 · numpy/numpy · GitHub
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CyanoKobalamyne opened this issue Jul 17, 2018 · 4 comments
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Add axis option to numpy.random.shuffle #11583

CyanoKobalamyne opened this issue Jul 17, 2018 · 4 comments
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01 - Enhancement component: numpy.random

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@CyanoKobalamyne
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Currently, numpy.random.shuffle only supports shuffling along the first axis only. Many other Numpy functions support the axis keyword argument to specify the axis along which the respective operation should be applied, it would be great to have such an argument for this function as well.
@subhrm
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subhrm commented Jul 20, 2018 •
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I would suggest apply_along_axis . PFB an example :

import numpy as np
a = np.arange(40).reshape((5,8))       
# shuffle along axis 1     
np.apply_along_axis(np.random.shuffle,1,a) 
# shuffle along axis 0
np.random.shuffle(a)
print(a)

Example output:

[[28 24 30 27 31 25 26 29]
 [39 36 37 33 38 35 34 32]
 [ 9 15 12  8 14 13 11 10]
 [22 17 23 19 20 16 18 21]
 [ 2  1  5  4  6  0  7  3]]

@mattip mattip mentioned this issue Jun 6, 2019
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@wkschwartz wkschwartz mentioned this issue Jun 26, 2019
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@WarrenWeckesser
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FYI: #5173

@wkschwartz
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Can this be closed now because of #13829?

@CyanoKobalamyne
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I believe so. Thank you!

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@WarrenWeckesser @mattip @subhrm @wkschwartz @CyanoKobalamyne
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