Published May 25, 2022Updated Oct 28, 2022
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The .transpose() function reverses or permutes the axes of an ndarray.


numpy.transpose(array, axes)

Where array is the ndarray to transpose. axes is a tuple or list with as many entries as there are dimensions, listing the 0-based indices of each index in the new order in which they’ll appear in the permuted array. If axes is omitted, .transpose() will simply reverse the order of axes.

If possible, the ndarray returned will be a view of the original ndarray‘s data.


The below example creates an ndarray and then uses .transpose() on it.

import numpy as np
nd1 = np.array([[1,2,3],[4,5,6]])

This produces the following output:

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

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