How to add an element to a numpy subarray?

Question

Python

There is an array data = . How do I add, say, 0 to the first subarray to get ?

Answer 1

A little fiddly, but it works.

import numpy as np
array = np.array()
to = len(a[0])
array = np.insert(array, to, 0, axis=1)
print(array)