How to find index of max value in Numpy?

Let’s learn how to find index of max value in Numpy Python library. We will use argmax function.

You may need to find the index of max value in Numpy array. There is argmax function which help you to find that index.

Argmax function is scanning the whole array and finding the first occurence of max value. It is returning the findex of first value.

import numpy as np

my_list = np.array([5, 7, 8, 3, 2, 8])
print(f"This is my array: \n {my_list}")

max_value = my_list.argmax()
print(f"Index of max value: \n {max_value}")

As you may see there are two occurrence of 8 but argmax returned the index of first one.