代码运行问题 Practice05_Cliff_Walk

[tine8899]

您好我在运行代码

reinforce/reinforce/codes_for_book/c05/02_windy_grid/Practice05_Cliff_Walk.ipynb

q_agent = QAgent(env, capacity = 10000)
sarsa_agent = SarsaAgent(env, capacity = 10000)

sarsa_sta = sarsa_agent.learning(display = False,
                                 max_episode_num = 10000, 
                                 epsilon = 0.1, 
                                 decaying_epsilon = False)
q_sta = q_agent.learning(display = False,
                         max_episode_num = 10000,
                         epsilon = 0.1, 
                         decaying_epsilon = False)

报错

AttributeError                            Traceback (most recent call last)
<ipython-input-3-c0715cdf678b> in <module>()
      7                                  max_episode_num = 10000,
      8                                  epsilon = 0.1,
----> 9                                  decaying_epsilon = False)
     10 q_sta = q_agent.learning(display = False,
     11                          max_episode_num = 10000,

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/core.py in learning(self, lambda_, epsilon, decaying_epsilon, gamma, alpha, max_episode_num, display)
    255                 epsilon = 1.0 / (1 + num_episode)
    256             time_in_episode, episode_reward = self.learning_method(lambda_ = lambda_, \
--> 257                   gamma = gamma, alpha = alpha, epsilon = epsilon, display = display)
    258             total_time += time_in_episode
    259             num_episode += 1

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/agents.py in learning_method(self, gamma, alpha, epsilon, display, lambda_)
     31         if display:
     32             self.env.render()
---> 33         a0 = self.perform_policy(s0, epsilon)
     34         # print(self.action_t.name)
     35         time_in_episode, total_reward = 0, 0

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/core.py in perform_policy(self, s, Q, epsilon)
    208 
    209     def perform_policy(self, s, Q = None, epsilon = 0.05):
--> 210         action = self.policy(self.A, s, Q, epsilon)
    211         return int(action)
    212 

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/agents.py in policy(self, A, s, Q, epsilon)
     24 
     25     def policy(self, A, s, Q, epsilon):
---> 26         return epsilon_greedy_policy(A, s, Q, epsilon)
     27 
     28     def learning_method(self, gamma = 0.9, alpha = 0.1, epsilon = 1e-5, display = False, lambda_ = None):

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/utils.py in epsilon_greedy_policy(A, s, Q, epsilon)
    134         return sample(A)
    135     else:
--> 136         return greedy_policy(A, s, Q)

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/utils.py in greedy_policy(A, s, Q, epsilon)
    109     max_q, a_max_q = -float('inf'), []
    110     for a_opt in A:
--> 111         q = get_dict(Q, s, a_opt)
    112         if q > max_q:
    113             max_q = q

~/Documents/01work/gluon/reinforce/reinforce/codes_for_book/c05/02_windy_grid/utils.py in get_dict(target_dict, *args)
     61     if target_dict is None:
     62         return
---> 63     return target_dict.get(str_key(*args),0)
     64 
     65 

AttributeError: 'float' object has no attribute 'get'

看上去是 Q 值得问题，但是我没有解决。

[xxxkxin]

你好 请问你的问题解决了吗？我也出现同样的问题，是不是utils的line63那里需要修改呢？

[dakerbose]

我也是同样的问题~~~

[hangwuliuqi]

你们有人解决了吗？我一开始是觉得是target_dict.get(str_key(*args),0)这里的target_dict的问题，后面改了之后他说float类型不能参加迭代，我最后也没解决

[Easyboy0405]

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