Add column array python

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 array python

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

>>> z = np.zeros((2,1), dtype=int64)
>>> z
array([[0],
       [0]])

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

Similar codes

42 votes329 views6 answers
Create requirements.txt python
Python
0 vote331 views1 answer
Region error when use service account json file dataproc
Python
4 votes355 views2 answers
Dataframe to tf data
Python
0 vote313 views1 answer
Least square fit straight line python
Python
0 vote316 views1 answer
Scroll horizontal excel
Python
1 vote328 views1 answer
Isnull().mean() python
Python
0 vote323 views1 answer
If a specific column name is present drop tyhe column
Python
1 vote358 views3 answers
Read binary image python
Python
0 vote328 views1 answer
How to detect the body with cv2
Python
46 votes331 views6 answers
Comment in python
Python