Getting random array from list-CodePudding

I have the following code for a two-player game using nashpy. When I calculate my support enumeration it comes back with a list of arrays. How do I randomly choose an array from this list?

For example, when my list is this:

[(array([1., 0.]), array([0., 1.])), (array([0., 1.]), array([1., 0.])), (array([0.5, 0.5]), array([0.66666667, 0.33333333]))]

...I wish to randomly take one array from this list such as [0.66666667, 0.33333333].

How do I go by doing this.?

My code:

import numpy as np
import nashpy as nash
import random


A = np.array([[1, 2], [2, 0]])
B = np.array([[0, 1], [0, -1]])
game = nash.Game(A,B)
print(game)
eqs = game.support_enumeration() 
 
a = list(eqs)
b = random.choices(a)

CodePudding user response：

Super close! You can just call random.choice(a) where you have random.choices(a), which should work on any list.

Another way to go about would be to generate a random number between 0 and the length of your list and index your list with that random number.

CodePudding user response：

Try this:

eqs = game.support_enumeration()
a = np.reshape(np.array(list(eqs)), (-1, 2))
b = random.choice(a)