Add a new column to numpy array

Numpy add new column

: import numpy as np
: N = 3
: A = np.eye(N)

: np.c_[ A, np.ones(N) ]              # add a column
array([[ 1.,  0.,  0.,  1.],
       [ 0.,  1.,  0.,  1.],
       [ 0.,  0.,  1.,  1.]])

Source: stackoverflow.com

Append a zeros column numpy

np.concatenate((np.zeros((3,3), dtype=int), arr), axis=1)
array([[0, 0, 0, 1, 2, 3],
       [0, 0, 0, 4, 5, 6],
       [0, 0, 0, 7, 8, 9]])

Source: stackoverflow.com

Add a new column to numpy array

import numpy as np
N = 10
a = np.random.rand(N,N)
b = np.zeros((N,N+1))
b[:,:-1] = a

Source: stackoverflow.com

Add column to existing numpy array

b = np.insert(a, insert_index, values=a[:,2], axis=1)

Source: stackoverflow.com

Numpy add one column

an_array = np.append(an_array, new_column, axis=1)

Source: kite.com

Similar codes

0 vote142 views1 answer
Backend not found Request Method: GET Request URL: http://127.0.0.1:8000/oauth/login/google-oauth2/ Raised by: social_django.views.au
Python Django
0 vote102 views1 answer
How to capture video in google colab with python
Python
36 votes95 views6 answers
Arrays in python
Python
0 vote103 views1 answer
Pydub audiosegment to numpy array
Python
2 votes104 views1 answer
Check corently installed epython version
Python
0 vote99 views1 answer
Create loading in pyqt
Python
1 vote116 views1 answer
What do i do if my dog eats paper
Python
0 vote106 views1 answer
Pandas mean and sum
Python
0 vote122 views2 answers
Wsl python image
Python
2 votes100 views1 answer
How to chang your facebook name
Python