Repeat values of an array on both the axes

January 9, 2022

Say I have this array:

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

returns:
123
456
789

How should I go about getting it to do something like this

I don’t know what to google to get an answer as all of my results have been different issues since I imagine this isn’t too common of a thing
Anyway, any and all help would be greatly appreciated 🙂

>Solution :

You’d have to use np.repeat twice here.

np.repeat(np.repeat(array, 3, axis=1), 3, axis=0)

# [[1 1 1 2 2 2 3 3 3]
#  [1 1 1 2 2 2 3 3 3]
#  [1 1 1 2 2 2 3 3 3]
#  [4 4 4 5 5 5 6 6 6]
#  [4 4 4 5 5 5 6 6 6]
#  [4 4 4 5 5 5 6 6 6]
#  [7 7 7 8 8 8 9 9 9]
#  [7 7 7 8 8 8 9 9 9]
#  [7 7 7 8 8 8 9 9 9]]