演化博弈matlab代码
时间: 2023-07-03 11:29:14 浏览: 174
以下是一个简单的演化博弈的Matlab代码示例:
```matlab
% 定义初始策略
strategyA = [0.2 0.8];
strategyB = [0.6 0.4];
% 定义收益矩阵
payoffA = [3 0; 5 1];
payoffB = [3 5; 0 1];
% 进行演化博弈
for i = 1:100
% 计算双方的收益
payoffA1 = dot(strategyA, payoffA(1,:));
payoffA2 = dot(strategyA, payoffA(2,:));
payoffB1 = dot(strategyB, payoffB(:,1));
payoffB2 = dot(strategyB, payoffB(:,2));
% 计算双方的平均收益
avg_payoffA = (payoffA1 + payoffA2) / 2;
avg_payoffB = (payoffB1 + payoffB2) / 2;
% 根据收益更新策略
if avg_payoffA > avg_payoffB
strategyA = strategyA + randn(size(strategyA)) * 0.01;
else
strategyB = strategyB + randn(size(strategyB)) * 0.01;
end
% 归一化策略
strategyA = strategyA / sum(strategyA);
strategyB = strategyB / sum(strategyB);
end
% 输出最终策略
disp('Final strategy of player A:');
disp(strategyA);
disp('Final strategy of player B:');
disp(strategyB);
```
在这个示例中,我们定义了两个玩家的初始策略和收益矩阵,并进行了100次演化博弈的迭代。在每次迭代中,我们计算了双方的收益和平均收益,并根据平均收益更新策略。最后,输出了双方的最终策略。请注意,这只是一个简单的演化博弈示例,实际应用中需要根据具体情况进行调整。
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