jax.numpy.moveaxis

jax.numpy.moveaxis(a, source, destination)

Move axes of an array to new positions.

LAX-backend implementation of moveaxis(). Original docstring below.

Other axes remain in their original order.

New in version 1.11.0.

Parameters

• a (np.ndarray) – The array whose axes should be reordered.

• source (int or sequence of int) – Original positions of the axes to move. These must be unique.

• destination (int or sequence of int) – Destination positions for each of the original axes. These must also be unique.

Returns

result – Array with moved axes. This array is a view of the input array.

Return type

np.ndarray

See also

transpose()

Permute the dimensions of an array.

swapaxes()

Interchange two axes of an array.

Examples

>>> x = np.zeros((3, 4, 5))
>>> np.moveaxis(x, 0, -1).shape
(4, 5, 3)
>>> np.moveaxis(x, -1, 0).shape
(5, 3, 4)

These all achieve the same result:

>>> np.transpose(x).shape
(5, 4, 3)
>>> np.swapaxes(x, 0, -1).shape
(5, 4, 3)
>>> np.moveaxis(x, [0, 1], [-1, -2]).shape
(5, 4, 3)
>>> np.moveaxis(x, [0, 1, 2], [-1, -2, -3]).shape
(5, 4, 3)