Add new row to numpy array

How to append rows to a numpy matrix

import numpy as np    
arr = np.empty((0,3), int)
print("Empty array:")
print(arr)
arr = np.append(arr, np.array([[10,20,30]]), axis=0)
arr = np.append(arr, np.array([[40,50,60]]), axis=0)
print("After adding two new arrays:")
print(arr)

Add new row to numpy array

  newrow = [1,2,3]
  A = numpy.vstack([A, newrow])

Source: stackoverflow.com

Similar codes

2 votes186 views2 answers
How to store object in file python
Python
0 vote177 views2 answers
What is fn.call
Python
7 votes169 views2 answers
Trim multiple spaces in python
Python
14 votes201 views1 answer
Filter list with python
Python
0 vote179 views1 answer
Python how to make boxplots with swarmplot
Python
1 vote182 views1 answer
Get list from list python
Python
0 vote248 views1 answer
Two input string sum in django
Python Django
0 vote184 views1 answer
Get value of a pd for specific values in column
Python
10 votes172 views6 answers
Declaring variables in python
Python
21 votes136 views1 answer
Raise en python
Python