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我想使用这个 q-learning(强化学习)代码。看起来代码是正确的,但我收到错误,我不知道为什么:

function  q=ReinforcementLearning 

clc;
format short;
format compact;
int state=0;


R= [-inf,-inf,-inf,-inf,   0,-inf;
-inf,-inf,-inf,   0,-inf, 100;
-inf,-inf,-inf,   0,-inf,-inf;
-inf,   0,   0,-inf,   0,-inf;
   0,-inf,-inf,   0,-inf, 100;
-inf,   0,-inf,-inf,   0, 100];

gamma=0.8;

q=zero(size(R));
q1=one(size(R))*inf;
count=0;

for episode = 0:20000;
y=randperm(size(R,1));
state=y(1);

x=find(R(state,:)>=0);
if size(x,1)>0,
  x1=RandomPermutation(x);
  x1=x1(1);
end

qMax=max(q,[],2);
q(state,x1)=R(state,x1)+ gamma* qMax(x1);
  int  state=x1;


if sum(sum(abs(q1-q)))<0.0001 && sum(sum(q>0))
  if count > 1000;

      break
  else
      count=count+1;
  end
else
  q1=q;
  count=0;
end

end

但我收到以下警告和错误:

 enter code here
Warning: The method char/int will be removed in a
future relase. Use sym/int instead. For example
int(sym('x^2')). 
> In char.int at 10
  In ReinforcementLearning at 6 
Error using mupadmex
Error in MuPAD command: Invalid integrand. [int]
Error in sym/int (line 107)
   rSym =
   mupadmex('symobj::intindef',f.s,x.s,options);
Error in char/int (line 12)
y = int(sym(f),varargin{:});
Error in ReinforcementLearning (line 6)
int state=0;

此代码可在以下链接中找到:http: //people.revoledu.com/kardi/tutorial/ReinforcementLearning/Q-Learning-Matlab.htm

4

1 回答 1

5

没有

int state=0;
int state=x1;

在matlab中。那是C风格。在 matlab 中 int 是一个内置函数,意思是别的东西。此外,应该是

q=zeros(size(R));
q1=ones(size(R))*inf;

记得下载他的 RandomPermutation 函数,否则就用 randperm 代替。

于 2013-11-22T04:55:08.047 回答