`numpy:swapaxes`

Signature

def swapaxes(a, axis1, axis2)

Interchange two axes of an array.

a_swapped : ndarray: For NumPy >= 1.10.0, if a is an ndarray, then a view of a is returned; otherwise a new array is created. For earlier NumPy versions a view of a is returned only if the order of the axes is changed, otherwise the input array is returned.

import numpy as np
x = np.array([[1,2,3]])
np.swapaxes(x,0,1)

✓

array([[1],
       [2],
       [3]])

x = np.array([[[0,1],[2,3]],[[4,5],[6,7]]])

✓

✗

array([[[0, 1],
        [2, 3]],

       [[4, 5],
        [6, 7]]])

np.swapaxes(x,0,2)

✗

array([[[0, 4],
        [2, 6]],

       [[1, 5],
        [3, 7]]])