Python:NumPy .swapaxes()

NumPy’s .swapaxes() method returns a view of the array with the specified axes interchanged, without copying data. It’s useful for reorienting multi-dimensional arrays for analysis, transformation, or visualization.

Syntax

ndarray.swapaxes(axis1, axis2)

Parameters:

• axis1: An int representing the first axis to be swapped.
• axis2: An int representing the second axis to be swapped.

Return value:

Returns an ndarray view of the original array with axis1 and axis2 interchanged. The shape of the returned array is the same as the original, but with the specified axes swapped.

Example

This example creates a 2D array and then swaps its axes using .swapaxes():

import numpy as np

arr = np.array([[1, 2, 3], [4, 5, 6]])
swapped_arr = arr.swapaxes(0, 1)
print(swapped_arr)

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Here is the output:

[[1 4]
 [2 5]
 [3 6]]

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Codebyte Example

This codebyte example demonstrates the use of .swapaxes() on a 3D array:

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