numpy add rows togethr code example

Example 1: append row to array python

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

Example 2: np.append

>>> np.append([1, 2, 3], [[4, 5, 6], [7, 8, 9]])
array([1, 2, 3, ..., 7, 8, 9])