Python NumPy: Get the unique elements of an array - w3resource
w3resource
Python Exercises

Python NumPy: Get the unique elements of an array

Python NumPy: Array Object Exercise-19 with Solution

Write a Python program to get the unique elements of an array.

Pictorial Presentation:

Python NumPy: Get the unique elements of an array

Sample Solution:-

Python Code:

import numpy as np
x = np.array([10, 10, 20, 20, 30, 30])
print("Original array:")
print(x)
print("Unique elements of the above array:")
print(np.unique(x))
x = np.array([[1, 1], [2, 3]])
print("Original array:")
print(x)
print("Unique elements of the above array:")
print(np.unique(x))

Sample Output:

Original array:                                                        
[10 10 20 20 30 30]                                                    
Unique elements of the above array:                                    
[10 20 30]                                                             
Original array:                                                        
[[1 1]                                                                 
 [2 3]]                                                                
Unique elements of the above array:                                    
[1 2 3]

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to find common values between two arrays.
Next: Write a Python program to find the set difference of two arrays. The set difference will return the sorted, unique values in array1 that are not in array2.

What is the difficulty level of this exercise?