CODE EXAMPLE FOR PYTHON

NumPy unique Example Identify the index of the first occurrence of unique values

# welcome to softhunt.net
import numpy as np

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

# GET UNIQUE VALUES
ans = np.unique(duplicates, return_index = True)
print(ans)