numpy array transpose code example

Example 1: transpose matrix numpy

>>> a = np.array([[1, 2], [3, 4]])
>>> a
array([[1, 2],
       [3, 4]])
>>> a.transpose()
array([[1, 3],
       [2, 4]])
>>> a.transpose((1, 0))
array([[1, 3],
       [2, 4]])
>>> a.transpose(1, 0)
array([[1, 3],
       [2, 4]])

Example 2: numpy transpose

>>> np.transpose(x)
array([[0, 2],
       [1, 3]])

Example 3: transpose matrices numpy

import numpy as np

A = [1, 2, 3, 4]
np.array(A).T # .T is used to transpose matrix

Example 4: transpose matrix in python without numpy

def transpose(matrix):
    rows = len(matrix)
    columns = len(matrix[0])

    matrix_T = []
    for j in range(columns):
        row = []
        for i in range(rows):
           row.append(matrix[i][j])
        matrix_T.append(row)

    return matrix_T

Example 5: transpose of a matrix using numpy

M = np.matrix([[1,2],[3,4]])

M.transpose()