Numpy - add row to array

Question

How does one add rows to a numpy array?

I have an array A:

A = array([[0, 1, 2], [0, 2, 0]])

I wish to add rows to this array from

Answer 1

You can use numpy.append() to append a row to numpty array and reshape to a matrix later on.

import numpy as np
a = np.array([1,2])
a = np.append(a, [3,4])
print a
# [1,2,3,4]
# in your example
A = [1,2]
for row in X:
    A = np.append(A, row)