Randomly select n elements from list in Python
In this article, we will discuss how to randomly select n elements from the list in Python. Before moving on to the approaches let’s discuss Random Module which we are going to use in our approaches.
Random Module:
Random module is the predefined Module in Python, It contains methods to return random values. This module is useful when we want to generate random values. Some of the methods of Random module are:-
seed(), getstate(), choice(), sample() etc.
Let’s discuss different approaches to implement this.
Approach 1 : Using sample() Method. sample() method is used to return required list of items from a given sequence. This method do not allow duplicate elements in a sequence.
# importing random moduleimport random # declaring listlist = [2, 2, 4, 6, 6, 8] # initializing the value of nn = 4 # printing n elements from listprint(random.sample(list, n)) |
Output :
[8, 6, 6, 4]
Approach 2 : Using choice() Method. choice() method is used to return a random number from given sequence. The sequence can be a list or a tuple. This returns a single value from available data that considers duplicate values in the sequence(list).
# importing random moduleimport random # declaring listlist = [2, 2, 4, 6, 6, 8] # initializing the value of nn = 4 # traversing and printing random elementsfor i in range(n): # end = " " so that we get output in single line print(random.choice(list), end = " ") |
Output :
8 2 4 6
Last Updated on March 17, 2022 by admin