How to Slice a NumPy Array By Certain Notation

In this example we will show how to slice a NumPy array by giving an end index but omitting a start index in Python.

Source Code

import numpy as np

n = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])

# slice elements from the beginning to index 8 (not included)
print(n[:8])

Output:

[1 2 3 4 5 6 7 8]