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

0 vote259 views1 answer
Delete df rows where column value = 0: mult col's
Python
0 vote225 views1 answer
405 status code django
Python Django
9 votes234 views5 answers
Threading python
Python
0 vote224 views1 answer
Break up word in clomun pandas
Python
5 votes229 views4 answers
Open mat file in python
Python
0 vote235 views3 answers
Convert an image to matrix in python
Python
1 vote231 views1 answer
Python csv update row
Python
1 vote238 views1 answer
Removing odd index character of a given string in python
Python
16 votes297 views6 answers
Pip install pandas
Python
140 votes214 views6 answers
Python random integer in range
Python