Question

How to select N reservoir items randomly from a list in Python

Answer 1

import random
  
lst = [4, 9, 14, 96, 13, 0, 3, 99, 19, 2, 80, 1, 7]
  
N = 5
  
reservoir = random.sample(lst, N)
 
print(reservoir)
 
 
 
'''
run:
 
[13, 9, 7, 2, 99]
 
'''

 

70+ SQL courses for beginners and professionals

Answer 2

import numpy
 
lst = [4, 9, 14, 96, 13, 0, 3, 99, 19, 2, 80, 1, 7]
 
N = 5
 
reservoir = numpy.random.choice(lst, N, False)

print(reservoir)



'''
run:

[ 4  2  9 14 99]

'''

 

70+ SQL courses for beginners and professionals