x
import numpy as nparr = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12], [13, 14, 15], [16, 17, 18]])newarr = np.array_split(arr, 3, axis=1)print(newarr)[array([[ 1],
[ 4],
[ 7],
[10],
[13],
[16]]), array([[ 2],
[ 5],
[ 8],
[11],
[14],
[17]]), array([[ 3],
[ 6],
[ 9],
[12],
[15],
[18]])]