CFR Average Strategy

Problem

Normalize accumulated strategy sums into the average strategy.

If the total is not positive return the uniform distribution, and an empty list returns [].

Hint

The average strategy is the object that converges in CFR, not the current strategy.

case 1

in: [[2,1,1]]

expected: [0.5,0.25,0.25]

case 2

in: [[0,0]]

expected: [0.5,0.5]

case 3

in: [[]]

expected: []

case 4

in: [[1,3]]

expected: [0.25,0.75]

Starter codePython

def cfr_average_strategy(strategy_sum):
    # Your code here
    pass

4 test cases · run your code against them in the editor