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johnjim0816
2022-08-29 15:12:33 +08:00
parent 99a3c1afec
commit 0b0f7e857d
109 changed files with 8213 additions and 1658 deletions
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__pycache__
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注：点击对应的名称会跳到[codes](./codes/)下对应的算法中，其他版本还请读者自行翻阅
| 算法名称 | 参考文献 | 备注 |
| :-----------------------: | :----------------------------------------------------------: | :--: |
| | | |
| :-------------------------------------: | :----------------------------------------------------------: | :--: |
| [Policy Gradient](codes/PolicyGradient) | [Policy Gradient paper](https://proceedings.neurips.cc/paper/1999/file/464d828b85b0bed98e80ade0a5c43b0f-Paper.pdf) | |
| DQN-CNN | | 待更 |
| [SoftQ](codes/SoftQ) | [Soft Q-learning paper](https://arxiv.org/abs/1702.08165) | |
| [SAC](codes/SAC) | [SAC paper](https://arxiv.org/pdf/1812.05905.pdf) | |

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\usepackage{float} % 调用该包能够使用[H]
% \pagestyle{plain} % 去除页眉，但是保留页脚编号，都去掉plain换empty
% 更改脚注为圆圈
\usepackage{pifont}
\makeatletter
\newcommand*{\circnum}[1]{%
\expandafter\@circnum\csname c@#1\endcsname
}
\newcommand*{\@circnum}[1]{%
\ifnum#1<1 %
\@ctrerr
\else
\ifnum#1>20 %
\@ctrerr
\else
\ding{\the\numexpr 171+(#1)\relax}%
\fi
\fi
}
\makeatother
\renewcommand*{\thefootnote}{\circnum{footnote}}
\begin{document}
\tableofcontents % 目录，注意要运行两下或者vscode保存两下才能显示
% \singlespacing
@@ -69,27 +90,10 @@
\end{algorithm}
\footnotetext[1]{Reinforcement Learning: An Introduction}
\clearpage
\section{Policy Gradient算法}
\begin{algorithm}[H] % [H]固定位置
\floatname{algorithm}{{REINFORCE算法：Monte-Carlo Policy Gradient}\footnotemark[1]}
\renewcommand{\thealgorithm}{} % 去掉算法标号
\caption{}
\begin{algorithmic}[1] % [1]显示步数
\STATE 初始化策略参数$\boldsymbol{\theta} \in \mathbb{R}^{d^{\prime}}($ e.g., to $\mathbf{0})$
\FOR {回合数 = $1,M$}
\STATE 根据策略$\pi(\cdot \mid \cdot, \boldsymbol{\theta})$采样一个(或几个)回合的transition
\FOR {时步 = $1,t$}
\STATE 计算回报$G \leftarrow \sum_{k=t+1}^{T} \gamma^{k-t-1} R_{k}$
\STATE 更新策略$\boldsymbol{\theta} \leftarrow {\boldsymbol{\theta}+\alpha \gamma^{t}} G \nabla \ln \pi\left(A_{t} \mid S_{t}, \boldsymbol{\theta}\right)$
\ENDFOR
\ENDFOR
\end{algorithmic}
\end{algorithm}
\footnotetext[1]{Reinforcement Learning: An Introduction}
\clearpage
\section{DQN算法}
\begin{algorithm}[H] % [H]固定位置
\floatname{algorithm}{{DQN算法}{\hypersetup{linkcolor=white}\footnotemark}}
\floatname{algorithm}{{DQN算法}\footnotemark[1]}
\renewcommand{\thealgorithm}{} % 去掉算法标号
\caption{}
\renewcommand{\algorithmicrequire}{\textbf{输入:}}
@@ -109,10 +113,10 @@
\STATE 更新环境状态$s_{t+1} \leftarrow s_t$
\STATE {\bfseries 更新策略：}
\STATE 从$D$中采样一个batch的transition
\STATE 计算实际的$Q$值，即$y_{j}${\hypersetup{linkcolor=white}\footnotemark}
\STATE 对损失 $L(\theta)=\left(y_{i}-Q\left(s_{i}, a_{i} ; \theta\right)\right)^{2}$关于参数$\theta$做随机梯度下降{\hypersetup{linkcolor=white}\footnotemark}
\STATE 计算实际的$Q$值，即$y_{j}$\footnotemark[2]
\STATE 对损失 $L(\theta)=\left(y_{i}-Q\left(s_{i}, a_{i} ; \theta\right)\right)^{2}$关于参数$\theta$做随机梯度下降\footnotemark[3]
\ENDFOR
\STATE 每$C$个回合复制参数$\hat{Q}\leftarrow Q${\hypersetup{linkcolor=white}\footnotemark}
\STATE 每$C$个回合复制参数$\hat{Q}\leftarrow Q$\footnotemark[4]]
\ENDFOR
\end{algorithmic}
\end{algorithm}
@@ -121,7 +125,46 @@
\footnotetext[3]{$\theta_i \leftarrow \theta_i - \lambda \nabla_{\theta_{i}} L_{i}\left(\theta_{i}\right)$}
\footnotetext[4]{此处也可像原论文中放到小循环中改成每$C$步，但没有每$C$个回合稳定}
\clearpage
\section{Policy Gradient算法}
\begin{algorithm}[H] % [H]固定位置
\floatname{algorithm}{{REINFORCE算法：Monte-Carlo Policy Gradient}\footnotemark[1]}
\renewcommand{\thealgorithm}{} % 去掉算法标号
\caption{}
\begin{algorithmic}[1] % [1]显示步数
\STATE 初始化策略参数$\boldsymbol{\theta} \in \mathbb{R}^{d^{\prime}}($ e.g., to $\mathbf{0})$
\FOR {回合数 = $1,M$}
\STATE 根据策略$\pi(\cdot \mid \cdot, \boldsymbol{\theta})$采样一个(或几个)回合的transition
\FOR {时步 = $1,t$}
\STATE 计算回报$G \leftarrow \sum_{k=t+1}^{T} \gamma^{k-t-1} R_{k}$
\STATE 更新策略$\boldsymbol{\theta} \leftarrow {\boldsymbol{\theta}+\alpha \gamma^{t}} G \nabla \ln \pi\left(A_{t} \mid S_{t}, \boldsymbol{\theta}\right)$
\ENDFOR
\ENDFOR
\end{algorithmic}
\end{algorithm}
\footnotetext[1]{Reinforcement Learning: An Introduction}
\clearpage
\section{Advantage Actor Critic算法}
\begin{algorithm}[H] % [H]固定位置
\floatname{algorithm}{{Q Actor Critic算法}}
\renewcommand{\thealgorithm}{} % 去掉算法标号
\caption{}
\begin{algorithmic}[1] % [1]显示步数
\STATE 初始化Actor参数$\theta$和Critic参数$w$
\FOR {回合数 = $1,M$}
\STATE 根据策略$\pi_{\theta}(a|s)$采样一个(或几个)回合的transition
\STATE {\bfseries 更新Critic参数\footnotemark[1]}
\FOR {时步 = $t+1,1$}
\STATE 计算Advantage，即$ \delta_t = r_t + \gamma Q_w(s_{t+1},a_{t+1})-Q_w(s_t,a_t)$
\STATE $w \leftarrow w+\alpha_{w} \delta_{t} \nabla_{w} Q_w(s_t,a_t)$
\STATE $a_t \leftarrow a_{t+1}$,$s_t \leftarrow s_{t+1}$
\ENDFOR
\STATE 更新Actor参数$\theta \leftarrow \theta+\alpha_{\theta} Q_{w}(s, a) \nabla_{\theta} \log \pi_{\theta}(a \mid s)$
\ENDFOR
\end{algorithmic}
\end{algorithm}
\footnotetext[1]{这里结合TD error的特性按照从$t+1$到$1$计算法Advantage更方便}
\clearpage
\section{SoftQ算法}
\begin{algorithm}[H]
\floatname{algorithm}{{SoftQ算法}}

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\contentsline {section}{\numberline {1}模版备用}{2}{section.1}%
\contentsline {section}{\numberline {2}Q learning算法}{3}{section.2}%
\contentsline {section}{\numberline {3}Sarsa算法}{4}{section.3}%
\contentsline {section}{\numberline {4}Policy Gradient算法}{5}{section.4}%
\contentsline {section}{\numberline {5}DQN算法}{6}{section.5}%
\contentsline {section}{\numberline {6}SoftQ算法}{7}{section.6}%
\contentsline {section}{\numberline {7}SAC-S算法}{8}{section.7}%
\contentsline {section}{\numberline {8}SAC算法}{9}{section.8}%

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@@ -1,56 +1,60 @@
#!/usr/bin/env python
# coding=utf-8
'''
Author: JiangJi
Email: johnjim0816@gmail.com
Date: 2021-05-03 22:16:08
LastEditor: JiangJi
LastEditTime: 2022-07-20 23:54:40
Discription:
Environment:
'''
import torch
import torch.optim as optim
import torch.nn as nn
import torch.nn.functional as F
from torch.distributions import Categorical
import numpy as np
class ActorCritic(nn.Module):
''' A2C网络模型，包含一个Actor和Critic
'''
def __init__(self, input_dim, output_dim, hidden_dim):
super(ActorCritic, self).__init__()
self.critic = nn.Sequential(
nn.Linear(input_dim, hidden_dim),
nn.ReLU(),
nn.Linear(hidden_dim, 1)
)
self.actor = nn.Sequential(
nn.Linear(input_dim, hidden_dim),
nn.ReLU(),
nn.Linear(hidden_dim, output_dim),
nn.Softmax(dim=1),
)
def forward(self, x):
value = self.critic(x)
probs = self.actor(x)
dist = Categorical(probs)
return dist, value
class A2C:
''' A2C算法
'''
def __init__(self,n_states,n_actions,cfg) -> None:
self.gamma = cfg.gamma
self.device = torch.device(cfg.device)
self.model = ActorCritic(n_states, n_actions, cfg.hidden_size).to(self.device)
self.optimizer = optim.Adam(self.model.parameters())
def __init__(self,models,memories,cfg):
self.n_actions = cfg['n_actions']
self.gamma = cfg['gamma']
self.device = torch.device(cfg['device'])
self.memory = memories['ACMemory']
self.actor = models['Actor'].to(self.device)
self.critic = models['Critic'].to(self.device)
self.actor_optim = torch.optim.Adam(self.actor.parameters(), lr=cfg['actor_lr'])
self.critic_optim = torch.optim.Adam(self.critic.parameters(), lr=cfg['critic_lr'])
def sample_action(self,state):
state = torch.tensor(state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
dist = self.actor(state)
value = self.critic(state) # note that 'dist' need require_grad=True
value = value.detach().numpy().squeeze(0)[0]
action = np.random.choice(self.n_actions, p=dist.detach().numpy().squeeze(0)) # shape(p=(n_actions,1)
return action,value,dist
def predict_action(self,state):
state = torch.tensor(state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
dist = self.actor(state)
value = self.critic(state) # note that 'dist' need require_grad=True
value = value.detach().numpy().squeeze(0)[0]
action = np.random.choice(self.n_actions, p=dist.detach().numpy().squeeze(0)) # shape(p=(n_actions,1)
return action,value,dist
def update(self,next_state,entropy):
value_pool,log_prob_pool,reward_pool = self.memory.sample()
next_state = torch.tensor(next_state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
next_value = self.critic(next_state)
returns = np.zeros_like(reward_pool)
for t in reversed(range(len(reward_pool))):
next_value = reward_pool[t] + self.gamma * next_value # G(s_{t},a{t}) = r_{t+1} + gamma * V(s_{t+1})
returns[t] = next_value
returns = torch.tensor(returns, device=self.device)
value_pool = torch.tensor(value_pool, device=self.device)
advantages = returns - value_pool
log_prob_pool = torch.stack(log_prob_pool)
actor_loss = (-log_prob_pool * advantages).mean()
critic_loss = 0.5 * advantages.pow(2).mean()
tot_loss = actor_loss + critic_loss + 0.001 * entropy
self.actor_optim.zero_grad()
self.critic_optim.zero_grad()
tot_loss.backward()
self.actor_optim.step()
self.critic_optim.step()
self.memory.clear()
def save_model(self, path):
from pathlib import Path
# create path
Path(path).mkdir(parents=True, exist_ok=True)
torch.save(self.actor.state_dict(), f"{path}/actor_checkpoint.pt")
torch.save(self.critic.state_dict(), f"{path}/critic_checkpoint.pt")
def compute_returns(self,next_value, rewards, masks):
R = next_value
returns = []
for step in reversed(range(len(rewards))):
R = rewards[step] + self.gamma * R * masks[step]
returns.insert(0, R)
return returns
def load_model(self, path):
self.actor.load_state_dict(torch.load(f"{path}/actor_checkpoint.pt"))
self.critic.load_state_dict(torch.load(f"{path}/critic_checkpoint.pt"))

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import torch
import numpy as np
class A2C_2:
def __init__(self,models,memories,cfg):
self.n_actions = cfg['n_actions']
self.gamma = cfg['gamma']
self.device = torch.device(cfg['device'])
self.memory = memories['ACMemory']
self.ac_net = models['ActorCritic'].to(self.device)
self.ac_optimizer = torch.optim.Adam(self.ac_net.parameters(), lr=cfg['lr'])
def sample_action(self,state):
state = torch.tensor(state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
value, dist = self.ac_net(state) # note that 'dist' need require_grad=True
value = value.detach().numpy().squeeze(0)[0]
action = np.random.choice(self.n_actions, p=dist.detach().numpy().squeeze(0)) # shape(p=(n_actions,1)
return action,value,dist
def predict_action(self,state):
''' predict can be all wrapped with no_grad(), then donot need detach(), or you can just copy contents of 'sample_action'
'''
with torch.no_grad():
state = torch.tensor(state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
value, dist = self.ac_net(state)
value = value.numpy().squeeze(0)[0] # shape(value) = (1,)
action = np.random.choice(self.n_actions, p=dist.numpy().squeeze(0)) # shape(p=(n_actions,1)
return action,value,dist
def update(self,next_state,entropy):
value_pool,log_prob_pool,reward_pool = self.memory.sample()
next_state = torch.tensor(next_state, device=self.device, dtype=torch.float32).unsqueeze(dim=0)
next_value,_ = self.ac_net(next_state)
returns = np.zeros_like(reward_pool)
for t in reversed(range(len(reward_pool))):
next_value = reward_pool[t] + self.gamma * next_value # G(s_{t},a{t}) = r_{t+1} + gamma * V(s_{t+1})
returns[t] = next_value
returns = torch.tensor(returns, device=self.device)
value_pool = torch.tensor(value_pool, device=self.device)
advantages = returns - value_pool
log_prob_pool = torch.stack(log_prob_pool)
actor_loss = (-log_prob_pool * advantages).mean()
critic_loss = 0.5 * advantages.pow(2).mean()
ac_loss = actor_loss + critic_loss + 0.001 * entropy
self.ac_optimizer.zero_grad()
ac_loss.backward()
self.ac_optimizer.step()
self.memory.clear()
def save_model(self, path):
from pathlib import Path
# create path
Path(path).mkdir(parents=True, exist_ok=True)
torch.save(self.ac_net.state_dict(), f"{path}/a2c_checkpoint.pt")
def load_model(self, path):
self.ac_net.load_state_dict(torch.load(f"{path}/a2c_checkpoint.pt"))

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import sys,os
os.environ["KMP_DUPLICATE_LIB_OK"] = "TRUE" # avoid "OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5md.dll already initialized."
curr_path = os.path.dirname(os.path.abspath(__file__)) # current path
parent_path = os.path.dirname(curr_path) # parent path
sys.path.append(parent_path) # add path to system path
import datetime
import argparse
import gym
import torch
import numpy as np
from common.utils import all_seed
from common.launcher import Launcher
from common.memories import PGReplay
from common.models import ActorSoftmax,Critic
from envs.register import register_env
from a2c import A2C
class Main(Launcher):
def get_args(self):
curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # obtain current time
parser = argparse.ArgumentParser(description="hyperparameters")
parser.add_argument('--algo_name',default='A2C',type=str,help="name of algorithm")
parser.add_argument('--env_name',default='CartPole-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=1600,type=int,help="episodes of training")
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing")
parser.add_argument('--ep_max_steps',default = 100000,type=int,help="steps per episode, much larger value can simulate infinite steps")
parser.add_argument('--gamma',default=0.99,type=float,help="discounted factor")
parser.add_argument('--actor_lr',default=3e-4,type=float,help="learning rate of actor")
parser.add_argument('--critic_lr',default=1e-3,type=float,help="learning rate of critic")
parser.add_argument('--actor_hidden_dim',default=256,type=int,help="hidden of actor net")
parser.add_argument('--critic_hidden_dim',default=256,type=int,help="hidden of critic net")
parser.add_argument('--device',default='cpu',type=str,help="cpu or cuda")
parser.add_argument('--seed',default=10,type=int,help="seed")
parser.add_argument('--show_fig',default=False,type=bool,help="if show figure or not")
parser.add_argument('--save_fig',default=True,type=bool,help="if save figure or not")
args = parser.parse_args()
default_args = {'result_path':f"{curr_path}/outputs/{args.env_name}/{curr_time}/results/",
'model_path':f"{curr_path}/outputs/{args.env_name}/{curr_time}/models/",
}
args = {**vars(args),**default_args} # type(dict)
return args
def env_agent_config(self,cfg):
''' create env and agent
'''
register_env(cfg['env_name'])
env = gym.make(cfg['env_name'])
if cfg['seed'] !=0: # set random seed
all_seed(env,seed=cfg["seed"])
try: # state dimension
n_states = env.observation_space.n # print(hasattr(env.observation_space, 'n'))
except AttributeError:
n_states = env.observation_space.shape[0] # print(hasattr(env.observation_space, 'shape'))
n_actions = env.action_space.n # action dimension
print(f"n_states: {n_states}, n_actions: {n_actions}")
cfg.update({"n_states":n_states,"n_actions":n_actions}) # update to cfg paramters
models = {'Actor':ActorSoftmax(cfg['n_states'],cfg['n_actions'], hidden_dim = cfg['actor_hidden_dim']),'Critic':Critic(cfg['n_states'],1,hidden_dim=cfg['critic_hidden_dim'])}
memories = {'ACMemory':PGReplay()}
agent = A2C(models,memories,cfg)
return env,agent
def train(self,cfg,env,agent):
print("Start training!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
steps = [] # record steps for all episodes
for i_ep in range(cfg['train_eps']):
ep_reward = 0 # reward per episode
ep_step = 0 # step per episode
ep_entropy = 0
state = env.reset() # reset and obtain initial state
for _ in range(cfg['ep_max_steps']):
action, value, dist = agent.sample_action(state) # sample action
next_state, reward, done, _ = env.step(action) # update env and return transitions
log_prob = torch.log(dist.squeeze(0)[action])
entropy = -np.sum(np.mean(dist.detach().numpy()) * np.log(dist.detach().numpy()))
agent.memory.push((value,log_prob,reward)) # save transitions
state = next_state # update state
ep_reward += reward
ep_entropy += entropy
ep_step += 1
if done:
break
agent.update(next_state,ep_entropy) # update agent
rewards.append(ep_reward)
steps.append(ep_step)
if (i_ep+1)%10==0:
print(f'Episode: {i_ep+1}/{cfg["train_eps"]}, Reward: {ep_reward:.2f}, Steps:{ep_step}')
print("Finish training!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
def test(self,cfg,env,agent):
print("Start testing!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
steps = [] # record steps for all episodes
for i_ep in range(cfg['test_eps']):
ep_reward = 0 # reward per episode
ep_step = 0
state = env.reset() # reset and obtain initial state
for _ in range(cfg['ep_max_steps']):
action,_,_ = agent.predict_action(state) # predict action
next_state, reward, done, _ = env.step(action)
state = next_state
ep_reward += reward
ep_step += 1
if done:
break
rewards.append(ep_reward)
steps.append(ep_step)
print(f"Episode: {i_ep+1}/{cfg['test_eps']}, Steps:{ep_step}, Reward: {ep_reward:.2f}")
print("Finish testing!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
if __name__ == "__main__":
main = Main()
main.run()

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import sys,os
os.environ["KMP_DUPLICATE_LIB_OK"] = "TRUE" # avoid "OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5md.dll already initialized."
curr_path = os.path.dirname(os.path.abspath(__file__)) # current path
parent_path = os.path.dirname(curr_path) # parent path
sys.path.append(parent_path) # add path to system path
import datetime
import argparse
import gym
import torch
import numpy as np
from common.utils import all_seed
from common.launcher import Launcher
from common.memories import PGReplay
from common.models import ActorCriticSoftmax
from envs.register import register_env
from a2c_2 import A2C_2
class Main(Launcher):
def get_args(self):
curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # obtain current time
parser = argparse.ArgumentParser(description="hyperparameters")
parser.add_argument('--algo_name',default='A2C',type=str,help="name of algorithm")
parser.add_argument('--env_name',default='CartPole-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=2000,type=int,help="episodes of training")
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing")
parser.add_argument('--ep_max_steps',default = 100000,type=int,help="steps per episode, much larger value can simulate infinite steps")
parser.add_argument('--gamma',default=0.99,type=float,help="discounted factor")
parser.add_argument('--lr',default=3e-4,type=float,help="learning rate")
parser.add_argument('--actor_hidden_dim',default=256,type=int)
parser.add_argument('--critic_hidden_dim',default=256,type=int)
parser.add_argument('--device',default='cpu',type=str,help="cpu or cuda")
parser.add_argument('--seed',default=10,type=int,help="seed")
parser.add_argument('--show_fig',default=False,type=bool,help="if show figure or not")
parser.add_argument('--save_fig',default=True,type=bool,help="if save figure or not")
args = parser.parse_args()
default_args = {'result_path':f"{curr_path}/outputs/{args.env_name}/{curr_time}/results/",
'model_path':f"{curr_path}/outputs/{args.env_name}/{curr_time}/models/",
}
args = {**vars(args),**default_args} # type(dict)
return args
def env_agent_config(self,cfg):
''' create env and agent
'''
register_env(cfg['env_name'])
env = gym.make(cfg['env_name'])
if cfg['seed'] !=0: # set random seed
all_seed(env,seed=cfg["seed"])
try: # state dimension
n_states = env.observation_space.n # print(hasattr(env.observation_space, 'n'))
except AttributeError:
n_states = env.observation_space.shape[0] # print(hasattr(env.observation_space, 'shape'))
n_actions = env.action_space.n # action dimension
print(f"n_states: {n_states}, n_actions: {n_actions}")
cfg.update({"n_states":n_states,"n_actions":n_actions}) # update to cfg paramters
models = {'ActorCritic':ActorCriticSoftmax(cfg['n_states'],cfg['n_actions'], actor_hidden_dim = cfg['actor_hidden_dim'],critic_hidden_dim=cfg['critic_hidden_dim'])}
memories = {'ACMemory':PGReplay()}
agent = A2C_2(models,memories,cfg)
return env,agent
def train(self,cfg,env,agent):
print("Start training!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
steps = [] # record steps for all episodes
for i_ep in range(cfg['train_eps']):
ep_reward = 0 # reward per episode
ep_step = 0 # step per episode
ep_entropy = 0
state = env.reset() # reset and obtain initial state
for _ in range(cfg['ep_max_steps']):
action, value, dist = agent.sample_action(state) # sample action
next_state, reward, done, _ = env.step(action) # update env and return transitions
log_prob = torch.log(dist.squeeze(0)[action])
entropy = -np.sum(np.mean(dist.detach().numpy()) * np.log(dist.detach().numpy()))
agent.memory.push((value,log_prob,reward)) # save transitions
state = next_state # update state
ep_reward += reward
ep_entropy += entropy
ep_step += 1
if done:
break
agent.update(next_state,ep_entropy) # update agent
rewards.append(ep_reward)
steps.append(ep_step)
if (i_ep+1)%10==0:
print(f'Episode: {i_ep+1}/{cfg["train_eps"]}, Reward: {ep_reward:.2f}, Steps:{ep_step}')
print("Finish training!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
def test(self,cfg,env,agent):
print("Start testing!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
steps = [] # record steps for all episodes
for i_ep in range(cfg['test_eps']):
ep_reward = 0 # reward per episode
ep_step = 0
state = env.reset() # reset and obtain initial state
for _ in range(cfg['ep_max_steps']):
action,_,_ = agent.predict_action(state) # predict action
next_state, reward, done, _ = env.step(action)
state = next_state
ep_reward += reward
ep_step += 1
if done:
break
rewards.append(ep_reward)
steps.append(ep_step)
print(f"Episode: {i_ep+1}/{cfg['test_eps']}, Steps:{ep_step}, Reward: {ep_reward:.2f}")
print("Finish testing!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
if __name__ == "__main__":
main = Main()
main.run()

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{
"algo_name": "A2C",
"env_name": "CartPole-v0",
"train_eps": 2000,
"test_eps": 20,
"ep_max_steps": 100000,
"gamma": 0.99,
"lr": 0.0003,
"actor_hidden_dim": 256,
"critic_hidden_dim": 256,
"device": "cpu",
"seed": 10,
"show_fig": false,
"save_fig": true,
"result_path": "/Users/jj/Desktop/rl-tutorials/codes/A2C/outputs/CartPole-v0/20220829-135818/results/",
"model_path": "/Users/jj/Desktop/rl-tutorials/codes/A2C/outputs/CartPole-v0/20220829-135818/models/",
"n_states": 4,
"n_actions": 2
}

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episodes,rewards,steps
0,200.0,200
1,200.0,200
2,93.0,93
3,155.0,155
4,116.0,116
5,200.0,200
6,190.0,190
7,176.0,176
8,200.0,200
9,200.0,200
10,200.0,200
11,179.0,179
12,200.0,200
13,185.0,185
14,191.0,191
15,200.0,200
16,200.0,200
17,124.0,124
18,200.0,200
19,172.0,172
1 episodes rewards steps
2 0 200.0 200
3 1 200.0 200
4 2 93.0 93
5 3 155.0 155
6 4 116.0 116
7 5 200.0 200
8 6 190.0 190
9 7 176.0 176
10 8 200.0 200
11 9 200.0 200
12 10 200.0 200
13 11 179.0 179
14 12 200.0 200
15 13 185.0 185
16 14 191.0 191
17 15 200.0 200
18 16 200.0 200
19 17 124.0 124
20 18 200.0 200
21 19 172.0 172

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{"algo_name": "A2C", "env_name": "CartPole-v0", "train_eps": 1600, "test_eps": 20, "ep_max_steps": 100000, "gamma": 0.99, "actor_lr": 0.0003, "critic_lr": 0.001, "actor_hidden_dim": 256, "critic_hidden_dim": 256, "device": "cpu", "seed": 10, "show_fig": false, "save_fig": true, "result_path": "/Users/jj/Desktop/rl-tutorials/codes/A2C/outputs/CartPole-v0/20220829-143327/results/", "model_path": "/Users/jj/Desktop/rl-tutorials/codes/A2C/outputs/CartPole-v0/20220829-143327/models/", "n_states": 4, "n_actions": 2}

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episodes,rewards,steps
0,177.0,177
1,180.0,180
2,200.0,200
3,200.0,200
4,167.0,167
5,124.0,124
6,128.0,128
7,200.0,200
8,200.0,200
9,200.0,200
10,186.0,186
11,187.0,187
12,200.0,200
13,176.0,176
14,200.0,200
15,200.0,200
16,200.0,200
17,200.0,200
18,185.0,185
19,180.0,180
1 episodes rewards steps
2 0 177.0 177
3 1 180.0 180
4 2 200.0 200
5 3 200.0 200
6 4 167.0 167
7 5 124.0 124
8 6 128.0 128
9 7 200.0 200
10 8 200.0 200
11 9 200.0 200
12 10 186.0 186
13 11 187.0 187
14 12 200.0 200
15 13 176.0 176
16 14 200.0 200
17 15 200.0 200
18 16 200.0 200
19 17 200.0 200
20 18 185.0 185
21 19 180.0 180

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projects/codes/A3C/a3c.py Normal file
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#!/usr/bin/env python
# coding=utf-8
'''
Author: JiangJi
Email: johnjim0816@gmail.com
Date: 2021-05-03 22:16:08
LastEditor: JiangJi
LastEditTime: 2022-07-20 23:54:40
Discription:
Environment:
'''
import torch
import torch.optim as optim
import torch.nn as nn
import torch.nn.functional as F
from torch.distributions import Categorical
class ActorCritic(nn.Module):
''' A2C网络模型，包含一个Actor和Critic
'''
def __init__(self, input_dim, output_dim, hidden_dim):
super(ActorCritic, self).__init__()
self.critic = nn.Sequential(
nn.Linear(input_dim, hidden_dim),
nn.ReLU(),
nn.Linear(hidden_dim, 1)
)
self.actor = nn.Sequential(
nn.Linear(input_dim, hidden_dim),
nn.ReLU(),
nn.Linear(hidden_dim, output_dim),
nn.Softmax(dim=1),
)
def forward(self, x):
value = self.critic(x)
probs = self.actor(x)
dist = Categorical(probs)
return dist, value
class A2C:
''' A2C算法
'''
def __init__(self,n_states,n_actions,cfg) -> None:
self.gamma = cfg.gamma
self.device = torch.device(cfg.device)
self.model = ActorCritic(n_states, n_actions, cfg.hidden_size).to(self.device)
self.optimizer = optim.Adam(self.model.parameters())
def compute_returns(self,next_value, rewards, masks):
R = next_value
returns = []
for step in reversed(range(len(rewards))):
R = rewards[step] + self.gamma * R * masks[step]
returns.insert(0, R)
return returns

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projects/codes/A2C/outputs/CartPole-v0/20220713-221850/results/train_ma_rewards.npy → projects/codes/A3C/outputs/CartPole-v0/20220713-221850/results/train_ma_rewards.npy
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projects/codes/A2C/outputs/CartPole-v0/20220713-221850/results/train_rewards.npy → projects/codes/A3C/outputs/CartPole-v0/20220713-221850/results/train_rewards.npy
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projects/codes/A2C/outputs/CartPole-v0/20220713-221850/results/train_rewards_curve.png → projects/codes/A3C/outputs/CartPole-v0/20220713-221850/results/train_rewards_curve.png
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projects/codes/A2C/task0.py → projects/codes/A3C/task0.py
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@@ -10,7 +10,7 @@ import torch.optim as optim
import datetime
import argparse
from common.multiprocessing_env import SubprocVecEnv
from a2c import ActorCritic
from a3c import ActorCritic
from common.utils import save_results, make_dir
from common.utils import plot_rewards, save_args

9
projects/codes/DQN/main.py
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@@ -24,6 +24,7 @@ def get_args():
parser.add_argument('--env_name',default='CartPole-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=200,type=int,help="episodes of training")
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing")
parser.add_argument('--ep_max_steps',default = 100000,type=int,help="steps per episode, much larger value can simulate infinite steps")
parser.add_argument('--gamma',default=0.95,type=float,help="discounted factor")
parser.add_argument('--epsilon_start',default=0.95,type=float,help="initial value of epsilon")
parser.add_argument('--epsilon_end',default=0.01,type=float,help="final value of epsilon")
@@ -72,7 +73,7 @@ def train(cfg, env, agent):
ep_reward = 0 # reward per episode
ep_step = 0
state = env.reset() # reset and obtain initial state
while True:
for _ in range(cfg['ep_max_steps']):
ep_step += 1
action = agent.sample_action(state) # sample action
next_state, reward, done, _ = env.step(action) # update env and return transitions
@@ -91,7 +92,7 @@ def train(cfg, env, agent):
print(f'Episode: {i_ep+1}/{cfg["train_eps"]}, Reward: {ep_reward:.2f}: Epislon: {agent.epsilon:.3f}')
print("Finish training!")
env.close()
res_dic = {'episodes':range(len(rewards)),'rewards':rewards}
res_dic = {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
return res_dic
def test(cfg, env, agent):
@@ -103,7 +104,7 @@ def test(cfg, env, agent):
ep_reward = 0 # reward per episode
ep_step = 0
state = env.reset() # reset and obtain initial state
while True:
for _ in range(cfg['ep_max_steps']):
ep_step+=1
action = agent.predict_action(state) # predict action
next_state, reward, done, _ = env.step(action)
@@ -116,7 +117,7 @@ def test(cfg, env, agent):
print(f"Episode: {i_ep+1}/{cfg['test_eps']}，Reward: {ep_reward:.2f}")
print("Finish testing!")
env.close()
return {'episodes':range(len(rewards)),'rewards':rewards}
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
if __name__ == "__main__":

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{"algo_name": "DQN", "env_name": "CartPole-v1", "train_eps": 2000, "test_eps": 20, "ep_max_steps": 100000, "gamma": 0.99, "epsilon_start": 0.95, "epsilon_end": 0.01, "epsilon_decay": 6000, "lr": 1e-05, "memory_capacity": 200000, "batch_size": 64, "target_update": 4, "hidden_dim": 256, "device": "cuda", "seed": 10, "show_fig": false, "save_fig": true, "result_path": "C:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\DQN/outputs/CartPole-v1/20220828-214702/results", "model_path": "C:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\DQN/outputs/CartPole-v1/20220828-214702/models", "n_states": 4, "n_actions": 2}

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@@ -0,0 +1,21 @@
episodes,rewards,steps
0,371.0,371
1,446.0,446
2,300.0,300
3,500.0,500
4,313.0,313
5,500.0,500
6,341.0,341
7,489.0,489
8,304.0,304
9,358.0,358
10,278.0,278
11,500.0,500
12,500.0,500
13,500.0,500
14,500.0,500
15,476.0,476
16,308.0,308
17,394.0,394
18,500.0,500
19,500.0,500
1 episodes rewards steps
2 0 371.0 371
3 1 446.0 446
4 2 300.0 300
5 3 500.0 500
6 4 313.0 313
7 5 500.0 500
8 6 341.0 341
9 7 489.0 489
10 8 304.0 304
11 9 358.0 358
12 10 278.0 278
13 11 500.0 500
14 12 500.0 500
15 13 500.0 500
16 14 500.0 500
17 15 476.0 476
18 16 308.0 308
19 17 394.0 394
20 18 500.0 500
21 19 500.0 500

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16
projects/codes/PolicyGradient/main.py
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@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2020-11-22 23:21:53
LastEditor: John
LastEditTime: 2022-08-25 20:59:23
LastEditTime: 2022-08-27 00:04:08
Discription:
Environment:
'''
@@ -34,7 +34,7 @@ class PGNet(MLP):
def forward(self, x):
x = F.relu(self.fc1(x))
x = F.relu(self.fc2(x))
x = F.sigmoid(self.fc3(x))
x = torch.sigmoid(self.fc3(x))
return x
class Main(Launcher):
@@ -47,8 +47,9 @@ class Main(Launcher):
parser.add_argument('--env_name',default='CartPole-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=200,type=int,help="episodes of training")
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing")
parser.add_argument('--ep_max_steps',default = 100000,type=int,help="steps per episode, much larger value can simulate infinite steps")
parser.add_argument('--gamma',default=0.99,type=float,help="discounted factor")
parser.add_argument('--lr',default=0.005,type=float,help="learning rate")
parser.add_argument('--lr',default=0.01,type=float,help="learning rate")
parser.add_argument('--update_fre',default=8,type=int)
parser.add_argument('--hidden_dim',default=36,type=int)
parser.add_argument('--device',default='cpu',type=str,help="cpu or cuda")
@@ -81,7 +82,7 @@ class Main(Launcher):
for i_ep in range(cfg['train_eps']):
state = env.reset()
ep_reward = 0
for _ in count():
for _ in range(cfg['ep_max_steps']):
action = agent.sample_action(state) # sample action
next_state, reward, done, _ = env.step(action)
ep_reward += reward
@@ -90,8 +91,9 @@ class Main(Launcher):
agent.memory.push((state,float(action),reward))
state = next_state
if done:
print(f"Episode：{i_ep+1}/{cfg['train_eps']}, Reward:{ep_reward:.2f}")
break
if (i_ep+1) % 10 == 0:
print(f"Episode：{i_ep+1}/{cfg['train_eps']}, Reward:{ep_reward:.2f}")
if (i_ep+1) % cfg['update_fre'] == 0:
agent.update()
rewards.append(ep_reward)
@@ -107,7 +109,7 @@ class Main(Launcher):
for i_ep in range(cfg['test_eps']):
state = env.reset()
ep_reward = 0
for _ in count():
for _ in range(cfg['ep_max_steps']):
action = agent.predict_action(state)
next_state, reward, done, _ = env.step(action)
ep_reward += reward
@@ -115,8 +117,8 @@ class Main(Launcher):
reward = 0
state = next_state
if done:
print(f"Episode: {i_ep+1}/{cfg['test_eps']}，Reward: {ep_reward:.2f}")
break
print(f"Episode: {i_ep+1}/{cfg['test_eps']}，Reward: {ep_reward:.2f}")
rewards.append(ep_reward)
print("Finish testing!")
env.close()

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{"algo_name": "PolicyGradient", "env_name": "CartPole-v0", "train_eps": 200, "test_eps": 20, "gamma": 0.99, "lr": 0.005, "update_fre": 8, "hidden_dim": 36, "device": "cpu", "seed": 1, "save_fig": true, "show_fig": false, "result_path": "/Users/jj/Desktop/rl-tutorials/codes/PolicyGradient/outputs/CartPole-v0/20220825-205930/results/", "model_path": "/Users/jj/Desktop/rl-tutorials/codes/PolicyGradient/outputs/CartPole-v0/20220825-205930/models/", "n_states": 4, "n_actions": 2}

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@@ -1,201 +0,0 @@
episodes,rewards
0,26.0
1,53.0
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42,47.0
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44,63.0
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1 episodes rewards
2 0 26.0
3 1 53.0
4 2 10.0
5 3 37.0
6 4 22.0
7 5 21.0
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9 7 34.0
10 8 38.0
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101 99 35.0
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140 138 84.0
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146 144 200.0
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148 146 171.0
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154 152 133.0
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{"algo_name": "PolicyGradient", "env_name": "CartPole-v0", "train_eps": 200, "test_eps": 20, "ep_max_steps": 100000, "gamma": 0.99, "lr": 0.01, "update_fre": 8, "hidden_dim": 36, "device": "cpu", "seed": 1, "save_fig": true, "show_fig": false, "result_path": "c:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\PolicyGradient/outputs/CartPole-v0/20220827-000433/results/", "model_path": "c:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\PolicyGradient/outputs/CartPole-v0/20220827-000433/models/", "n_states": 4, "n_actions": 2}

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@@ -1,7 +1,7 @@
episodes,rewards
0,200.0
1,200.0
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@@ -10,12 +10,12 @@ episodes,rewards
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1 episodes rewards
2 0 200.0
3 1 200.0
4 2 165.0 200.0
5 3 200.0
6 4 200.0
7 5 200.0
10 8 200.0
11 9 200.0
12 10 200.0
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14 12 200.0
15 13 200.0
16 14 200.0
17 15 115.0 200.0
18 16 198.0 200.0
19 17 200.0
20 18 200.0
21 19 200.0

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@@ -0,0 +1,201 @@
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5
projects/codes/PolicyGradient/pg.py
View File

@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2020-11-22 23:27:44
LastEditor: John
LastEditTime: 2022-08-25 20:58:59
LastEditTime: 2022-08-27 13:45:26
Discription:
Environment:
'''
@@ -31,8 +31,11 @@ class PolicyGradient:
state = torch.from_numpy(state).float()
state = Variable(state)
probs = self.policy_net(state)
print("probs")
print(probs)
m = Bernoulli(probs) # 伯努利分布
action = m.sample()
action = action.data.numpy().astype(int)[0] # 转为标量
return action
def predict_action(self,state):

7
projects/codes/QLearning/main.py
View File

@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2020-09-11 23:03:00
LastEditor: John
LastEditTime: 2022-08-25 14:59:15
LastEditTime: 2022-08-26 22:46:21
Discription:
Environment:
'''
@@ -57,7 +57,10 @@ class Main(Launcher):
env = CliffWalkingWapper(env)
if cfg['seed'] !=0: # set random seed
all_seed(env,seed=cfg["seed"])
n_states = env.observation_space.n # state dimension
try: # state dimension
n_states = env.observation_space.n # print(hasattr(env.observation_space, 'n'))
except AttributeError:
n_states = env.observation_space.shape[0] # print(hasattr(env.observation_space, 'shape'))
n_actions = env.action_space.n # action dimension
print(f"n_states: {n_states}, n_actions: {n_actions}")
cfg.update({"n_states":n_states,"n_actions":n_actions}) # update to cfg paramters

21
projects/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/results/testing_results.csv
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@@ -1,21 +0,0 @@
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View File

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BIN
projects/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/models/Qleaning_model.pkl → projects/codes/QLearning/outputs/CliffWalking-v0/20220826-224730/models/Qleaning_model.pkl
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1
projects/codes/QLearning/outputs/CliffWalking-v0/20220826-224730/results/params.json Normal file
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@@ -0,0 +1 @@
{"algo_name": "Q-learning", "env_name": "CliffWalking-v0", "train_eps": 400, "test_eps": 20, "gamma": 0.9, "epsilon_start": 0.95, "epsilon_end": 0.01, "epsilon_decay": 300, "lr": 0.1, "device": "cpu", "seed": 10, "show_fig": false, "save_fig": true, "result_path": "C:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\QLearning/outputs/CliffWalking-v0/20220826-224730/results/", "model_path": "C:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\QLearning/outputs/CliffWalking-v0/20220826-224730/models/", "n_states": 48, "n_actions": 4}

0
projects/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/results/testing_curve.png → projects/codes/QLearning/outputs/CliffWalking-v0/20220826-224730/results/testing_curve.png
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projects/codes/QLearning/outputs/CliffWalking-v0/20220826-224730/results/testing_results.csv Normal file
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@@ -0,0 +1,21 @@
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0
projects/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/results/training_curve.png → projects/codes/QLearning/outputs/CliffWalking-v0/20220826-224730/results/training_curve.png
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299,3,7
300,3,7
301,4,6
302,3,7
303,4,6
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309,4,6
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313,4,6
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315,-30,20
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317,3,7
318,4,6
319,4,6
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321,-13,13
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323,3,7
324,3,7
325,3,7
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330,3,7
331,3,7
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338,2,8
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340,4,6
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343,-78,48
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346,3,7
347,3,7
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351,-15,15
352,4,6
353,2,8
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368,4,6
369,2,8
370,2,8
371,1,9
372,-16,16
373,1,9
374,4,6
375,-16,16
376,3,7
377,2,8
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379,-44,34
380,-16,16
381,-30,20
382,4,6
383,4,6
384,2,8
385,-15,15
386,4,6
387,3,7
388,2,8
389,4,6
390,2,8
391,3,7
392,3,7
393,-14,14
394,-15,15
395,3,7
396,-13,13
397,3,7
398,4,6
399,3,7
1 episodes rewards steps
2 0 -3580 1000
3 1 -2960 1000
4 2 -2670 1000
5 3 -2720 1000
6 4 -2670 1000
7 5 -2570 1000
8 6 -2407 977
9 7 -2012 852
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13 11 -437 187
14 12 -80 40
15 13 -2450 1000
16 14 -338 148
17 15 -1175 525
18 16 -755 325
19 17 -411 181
20 18 -1068 448
21 19 -785 325
22 20 -149 79
23 21 -628 268
24 22 -423 183
25 23 -282 122
26 24 -2198 938
27 25 -13 13
28 26 -253 113
29 27 -48 28
30 28 -72 42
31 29 -123 63
32 30 -305 145
33 31 -72 32
34 32 -142 72
35 33 -13 13
36 34 4 6
37 35 -1285 545
38 36 -174 94
39 37 -436 196
40 38 -759 339
41 39 -11 11
42 40 -17 17
43 41 -283 123
44 42 -181 81
45 43 -44 24
46 44 -55 35
47 45 -135 65
48 46 -577 277
49 47 -234 114
50 48 -54 34
51 49 4 6
52 50 -29 19
53 51 -100 50
54 52 -32 22
55 53 -23 23
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60 58 -34 24
61 59 -45 25
62 60 -29 19
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79 77 4 6
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91 89 -97 57
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93 91 -16 16
94 92 -15 15
95 93 4 6
96 94 -147 67
97 95 -52 32
98 96 -97 47
99 97 3 7
100 98 -17 17
101 99 3 7
102 100 4 6
103 101 3 7
104 102 3 7
105 103 3 7
106 104 1 9
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109 107 3 7
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111 109 -68 38
112 110 3 7
113 111 4 6
114 112 -14 14
115 113 4 6
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122 120 -64 34
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128 126 -32 22
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136 134 -12 12
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400 398 4 6
401 399 3 7

56
projects/codes/Sarsa/main.py
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@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2021-03-11 17:59:16
LastEditor: John
LastEditTime: 2022-08-25 14:26:36
LastEditTime: 2022-08-26 23:03:39
Discription:
Environment:
'''
@@ -20,15 +20,18 @@ import argparse
from envs.register import register_env
from envs.wrappers import CliffWalkingWapper
from Sarsa.sarsa import Sarsa
from common.utils import save_results,make_dir,plot_rewards,save_args,all_seed
from common.utils import all_seed
from common.launcher import Launcher
def get_args():
class Main(Launcher):
def get_args(self):
curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # obtain current time
parser = argparse.ArgumentParser(description="hyperparameters")
parser.add_argument('--algo_name',default='Sarsa',type=str,help="name of algorithm")
parser.add_argument('--env_name',default='Racetrack-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=300,type=int,help="episodes of training")
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing")
parser.add_argument('--algo_name',default = 'Sarsa',type=str,help="name of algorithm")
parser.add_argument('--env_name',default = 'Racetrack-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default = 300,type=int,help="episodes of training")
parser.add_argument('--test_eps',default = 20,type=int,help="episodes of testing")
parser.add_argument('--ep_max_steps',default = 100000,type=int,help="steps per episode, much larger value can simulate infinite steps")
parser.add_argument('--gamma',default=0.99,type=float,help="discounted factor")
parser.add_argument('--epsilon_start',default=0.90,type=float,help="initial value of epsilon")
parser.add_argument('--epsilon_end',default=0.01,type=float,help="final value of epsilon")
@@ -45,7 +48,7 @@ def get_args():
args = {**vars(args),**default_args} # type(dict)
return args
def env_agent_config(cfg):
def env_agent_config(self,cfg):
register_env(cfg['env_name'])
env = gym.make(cfg['env_name'])
if cfg['seed'] !=0: # set random seed
@@ -62,7 +65,7 @@ def env_agent_config(cfg):
agent = Sarsa(cfg)
return env,agent
def train(cfg,env,agent):
def train(self,cfg,env,agent):
print("Start training!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
@@ -72,8 +75,8 @@ def train(cfg,env,agent):
ep_step = 0 # step per episode
state = env.reset() # reset and obtain initial state
action = agent.sample_action(state)
while True:
# for _ in range(cfg.ep_max_steps):
# while True:
for _ in range(cfg['ep_max_steps']):
next_state, reward, done, _ = env.step(action) # update env and return transitions
next_action = agent.sample_action(next_state)
agent.update(state, action, reward, next_state, next_action,done) # update agent
@@ -86,11 +89,11 @@ def train(cfg,env,agent):
rewards.append(ep_reward)
steps.append(ep_step)
if (i_ep+1)%10==0:
print(f'Episode: {i_ep+1}/{cfg["train_eps"]}, Reward: {ep_reward:.2f}, Steps:{ep_step}, Epislon: {agent.epsilon:.3f}')
print(f'Episode: {i_ep+1}/{cfg["train_eps"]}, Reward: {ep_reward:.2f}, Steps: {ep_step}, Epislon: {agent.epsilon:.3f}')
print("Finish training!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
def test(cfg,env,agent):
def test(self,cfg,env,agent):
print("Start testing!")
print(f"Env: {cfg['env_name']}, Algorithm: {cfg['algo_name']}, Device: {cfg['device']}")
rewards = [] # record rewards for all episodes
@@ -98,10 +101,10 @@ def test(cfg,env,agent):
for i_ep in range(cfg['test_eps']):
ep_reward = 0 # reward per episode
ep_step = 0
while True:
# for _ in range(cfg.ep_max_steps):
state = env.reset() # reset and obtain initial state
for _ in range(cfg['ep_max_steps']):
action = agent.predict_action(state)
next_state, reward, done = env.step(action)
next_state, reward, done, _ = env.step(action)
state = next_state
ep_reward+=reward
ep_step+=1
@@ -109,28 +112,13 @@ def test(cfg,env,agent):
break
rewards.append(ep_reward)
steps.append(ep_step)
print(f"Episode: {i_ep+1}/{cfg['test_eps']}, Steps:{ep_step}, Reward: {ep_reward:.2f}")
print(f"Episode: {i_ep+1}/{cfg['test_eps']}, Steps: {ep_step}, Reward: {ep_reward:.2f}")
print("Finish testing!")
return {'episodes':range(len(rewards)),'rewards':rewards,'steps':steps}
if __name__ == "__main__":
cfg = get_args()
# 训练
env, agent = env_agent_config(cfg)
res_dic = train(cfg, env, agent)
make_dir(cfg.result_path, cfg.model_path)
save_args(cfg) # save parameters
agent.save(path=cfg.model_path) # save model
save_results(res_dic, tag='train',
path=cfg.result_path)
plot_rewards(res_dic['rewards'], cfg, tag="train")
# 测试
env, agent = env_agent_config(cfg)
agent.load(path=cfg.model_path) # 导入模型
res_dic = test(cfg, env, agent)
save_results(res_dic, tag='test',
path=cfg.result_path) # 保存结果
plot_rewards(res_dic['rewards'], cfg, tag="test") # 画出结果
main = Main()
main.run()

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projects/codes/Sarsa/outputs/CliffWalking-v0/20220803-142740/results/params.json
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@@ -1 +0,0 @@
{"algo_name": "Sarsa", "env_name": "CliffWalking-v0", "train_eps": 300, "test_eps": 20, "ep_max_steps": 200, "gamma": 0.99, "epsilon_start": 0.9, "epsilon_end": 0.01, "epsilon_decay": 200, "lr": 0.2, "device": "cpu", "result_path": "/Users/jj/Desktop/rl-tutorials/codes/Sarsa/outputs/CliffWalking-v0/20220803-142740/results/", "model_path": "/Users/jj/Desktop/rl-tutorials/codes/Sarsa/outputs/CliffWalking-v0/20220803-142740/models/", "save_fig": true}

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projects/codes/Sarsa/outputs/CliffWalking-v0/20220804-223029/results/params.json
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@@ -1,15 +0,0 @@
{
"algo_name": "Sarsa",
"env_name": "CliffWalking-v0",
"train_eps": 400,
"test_eps": 20,
"gamma": 0.9,
"epsilon_start": 0.95,
"epsilon_end": 0.01,
"epsilon_decay": 300,
"lr": 0.1,
"device": "cpu",
"result_path": "c:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\Sarsa/outputs/CliffWalking-v0/20220804-223029/results/",
"model_path": "c:\\Users\\24438\\Desktop\\rl-tutorials\\codes\\Sarsa/outputs/CliffWalking-v0/20220804-223029/models/",
"save_fig": true
}

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projects/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/results/params.json → projects/codes/Sarsa/outputs/CliffWalking-v0/20220825-213316/results/params.json
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@@ -1,5 +1,5 @@
{
"algo_name": "Q-learning",
"algo_name": "Sarsa",
"env_name": "CliffWalking-v0",
"train_eps": 400,
"test_eps": 20,
@@ -12,8 +12,8 @@
"seed": 10,
"show_fig": false,
"save_fig": true,
"result_path": "/Users/jj/Desktop/rl-tutorials/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/results/",
"model_path": "/Users/jj/Desktop/rl-tutorials/codes/QLearning/outputs/CliffWalking-v0/20220824-103255/models/",
"result_path": "/Users/jj/Desktop/rl-tutorials/codes/Sarsa/outputs/CliffWalking-v0/20220825-213316/results/",
"model_path": "/Users/jj/Desktop/rl-tutorials/codes/Sarsa/outputs/CliffWalking-v0/20220825-213316/models/",
"n_states": 48,
"n_actions": 4
}

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@@ -0,0 +1,21 @@
episodes,rewards,steps
0,-15,15
1,-15,15
2,-15,15
3,-15,15
4,-15,15
5,-15,15
6,-15,15
7,-15,15
8,-15,15
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10,-15,15
11,-15,15
12,-15,15
13,-15,15
14,-15,15
15,-15,15
16,-15,15
17,-15,15
18,-15,15
19,-15,15
1 episodes rewards steps
2 0 -15 15
3 1 -15 15
4 2 -15 15
5 3 -15 15
6 4 -15 15
7 5 -15 15
8 6 -15 15
9 7 -15 15
10 8 -15 15
11 9 -15 15
12 10 -15 15
13 11 -15 15
14 12 -15 15
15 13 -15 15
16 14 -15 15
17 15 -15 15
18 16 -15 15
19 17 -15 15
20 18 -15 15
21 19 -15 15

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projects/codes/Sarsa/outputs/CliffWalking-v0/20220825-213316/results/training_results.csv Normal file
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@@ -0,0 +1,401 @@
episodes,rewards,steps
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1,-2822,842
2,-176,176
3,-139,139
4,-221,221
5,-51,51
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17,-115,115
18,-43,43
19,-133,133
20,-73,73
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29,-47,47
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31,-57,57
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34,-87,87
35,-49,49
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43,-39,39
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47,-105,105
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51,-41,41
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70,-188,89
71,-47,47
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86,-61,61
87,-35,35
88,-59,59
89,-43,43
90,-17,17
91,-39,39
92,-59,59
93,-29,29
94,-31,31
95,-55,55
96,-35,35
97,-45,45
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37 35 -10 10
38 36 -28 18
39 37 -34 24
40 38 -12 12
41 39 -19 19
42 40 -136 66
43 41 -171 71
44 42 -51 31
45 43 4 6
46 44 -117 57
47 45 4 6
48 46 4 6
49 47 -127 67
50 48 -78 48
51 49 -311 131
52 50 -25 15
53 51 4 6
54 52 -49 29
55 53 -25 15
56 54 -78 48
57 55 -238 108
58 56 4 6
59 57 -17 17
60 58 -29 19
61 59 -218 98
62 60 4 6
63 61 -129 59
64 62 -344 144
65 63 -25 15
66 64 -15 15
67 65 -77 37
68 66 2 8
69 67 0 10
70 68 4 6
71 69 4 6
72 70 -242 102
73 71 3 7
74 72 4 6
75 73 -53 33
76 74 -14 14
77 75 4 6
78 76 4 6
79 77 -30 20
80 78 -12 12
81 79 2 8
82 80 -12 12
83 81 -150 70
84 82 -48 28
85 83 -102 52
86 84 4 6
87 85 -97 47
88 86 -10 10
89 87 -125 55
90 88 -28 18
91 89 -26 16
92 90 -107 57
93 91 4 6
94 92 -16 16
95 93 -84 44
96 94 -13 13
97 95 -43 23
98 96 -14 14
99 97 -12 12
100 98 -13 13
101 99 -2 12
102 100 -14 14
103 101 -47 27
104 102 4 6
105 103 4 6
106 104 -91 51
107 105 -65 35
108 106 4 6
109 107 -12 12
110 108 -14 14
111 109 -13 13
112 110 4 6
113 111 -41 31
114 112 -13 13
115 113 4 6
116 114 -4 14
117 115 -74 34
118 116 4 6
119 117 -60 30
120 118 4 6
121 119 -15 15
122 120 3 7
123 121 4 6
124 122 4 6
125 123 -19 19
126 124 4 6
127 125 -49 29
128 126 -13 13
129 127 -30 20
130 128 2 8
131 129 -21 21
132 130 -45 25
133 131 -32 22
134 132 -67 37
135 133 -46 26
136 134 0 10
137 135 -12 12
138 136 -9 9
139 137 -10 10
140 138 -14 14
141 139 4 6
142 140 -11 11
143 141 -12 12
144 142 2 8
145 143 -35 25
146 144 4 6
147 145 -73 43
148 146 4 6
149 147 -20 20
150 148 4 6
151 149 2 8
152 150 -29 19
153 151 -20 20
154 152 4 6
155 153 -28 18
156 154 4 6
157 155 4 6
158 156 4 6
159 157 4 6
160 158 -34 24
161 159 4 6
162 160 4 6
163 161 4 6
164 162 -25 15
165 163 4 6
166 164 3 7
167 165 -48 28
168 166 4 6
169 167 -58 38
170 168 -20 20
171 169 -9 9
172 170 3 7
173 171 4 6
174 172 3 7
175 173 -33 23
176 174 -50 30
177 175 -16 16
178 176 -32 22
179 177 -65 35
180 178 4 6
181 179 -13 13
182 180 -11 11
183 181 3 7
184 182 4 6
185 183 -16 16
186 184 -12 12
187 185 4 6
188 186 -48 28
189 187 -13 13
190 188 2 8
191 189 3 7
192 190 -27 17
193 191 3 7
194 192 4 6
195 193 4 6
196 194 4 6
197 195 4 6
198 196 4 6
199 197 -13 13
200 198 -14 14
201 199 4 6
202 200 4 6
203 201 -13 13
204 202 -33 23
205 203 4 6
206 204 -32 22
207 205 4 6
208 206 -48 28
209 207 4 6
210 208 4 6
211 209 3 7
212 210 4 6
213 211 -34 24
214 212 3 7
215 213 4 6
216 214 4 6
217 215 4 6
218 216 3 7
219 217 -12 12
220 218 3 7
221 219 -8 8
222 220 3 7
223 221 4 6
224 222 -46 26
225 223 -33 23
226 224 4 6
227 225 1 9
228 226 3 7
229 227 2 8
230 228 -34 24
231 229 4 6
232 230 4 6
233 231 4 6
234 232 4 6
235 233 -55 35
236 234 -37 27
237 235 4 6
238 236 -14 14
239 237 -65 35
240 238 4 6
241 239 -13 13
242 240 4 6
243 241 4 6
244 242 -13 13
245 243 -30 20
246 244 3 7
247 245 -13 13
248 246 4 6
249 247 4 6
250 248 -13 13
251 249 -32 22
252 250 4 6
253 251 -55 35
254 252 -12 12
255 253 3 7
256 254 3 7
257 255 3 7
258 256 4 6
259 257 2 8
260 258 -12 12
261 259 3 7
262 260 -10 10
263 261 -12 12
264 262 4 6
265 263 3 7
266 264 3 7
267 265 -16 16
268 266 3 7
269 267 -47 27
270 268 -13 13
271 269 4 6
272 270 3 7
273 271 -13 13
274 272 4 6
275 273 4 6
276 274 -17 17
277 275 4 6
278 276 3 7
279 277 3 7
280 278 4 6
281 279 -41 31
282 280 3 7
283 281 -47 27
284 282 -32 22
285 283 4 6
286 284 3 7
287 285 -17 17
288 286 3 7
289 287 3 7
290 288 3 7
291 289 -12 12
292 290 4 6
293 291 3 7
294 292 3 7
295 293 -24 14
296 294 3 7
297 295 4 6
298 296 3 7
299 297 3 7
300 298 3 7
301 299 -13 13

16
projects/codes/Sarsa/sarsa.py
View File

@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2021-03-12 16:58:16
LastEditor: John
LastEditTime: 2022-08-25 00:23:22
LastEditTime: 2022-08-25 21:26:08
Discription:
Environment:
'''
@@ -30,7 +30,7 @@ class Sarsa(object):
self.sample_count += 1
self.epsilon = self.epsilon_end + (self.epsilon_start - self.epsilon_end) * \
math.exp(-1. * self.sample_count / self.epsilon_decay) # The probability to select a random action, is is log decayed
best_action = np.argmax(self.Q_table[state])
best_action = np.argmax(self.Q_table[str(state)]) # array cannot be hashtable, thus convert to str
action_probs = np.ones(self.n_actions, dtype=float) * self.epsilon / self.n_actions
action_probs[best_action] += (1.0 - self.epsilon)
action = np.random.choice(np.arange(len(action_probs)), p=action_probs)
@@ -38,27 +38,27 @@ class Sarsa(object):
def predict_action(self,state):
''' predict action while testing
'''
action = np.argmax(self.Q_table[state])
action = np.argmax(self.Q_table[str(state)])
return action
def update(self, state, action, reward, next_state, next_action,done):
Q_predict = self.Q_table[state][action]
Q_predict = self.Q_table[str(state)][action]
if done:
Q_target = reward # terminal state
else:
Q_target = reward + self.gamma * self.Q_table[next_state][next_action] # the only difference from Q learning
self.Q_table[state][action] += self.lr * (Q_target - Q_predict)
Q_target = reward + self.gamma * self.Q_table[str(next_state)][next_action] # the only difference from Q learning
self.Q_table[str(state)][action] += self.lr * (Q_target - Q_predict)
def save_model(self,path):
import dill
from pathlib import Path
# create path
Path(path).mkdir(parents=True, exist_ok=True)
torch.save(
obj=self.Q_table_table,
obj=self.Q_table,
f=path+"checkpoint.pkl",
pickle_module=dill
)
print("Model saved!")
def load_model(self, path):
import dill
self.Q_table_table =torch.load(f=path+'checkpoint.pkl',pickle_module=dill)
self.Q_table=torch.load(f=path+'checkpoint.pkl',pickle_module=dill)
print("Mode loaded!")

131
projects/codes/Sarsa/task1.py
View File

@@ -1,131 +0,0 @@
#!/usr/bin/env python
# coding=utf-8
'''
Author: John
Email: johnjim0816@gmail.com
Date: 2020-09-11 23:03:00
LastEditor: John
LastEditTime: 2022-08-04 22:44:00
Discription:
Environment:
'''
import sys
import os
curr_path = os.path.dirname(os.path.abspath(__file__)) # 当前文件所在绝对路径
parent_path = os.path.dirname(curr_path) # 父路径
sys.path.append(parent_path) # 添加路径到系统路径
import gym
import torch
import datetime
import argparse
from envs.gridworld_env import CliffWalkingWapper
from Sarsa.sarsa import Sarsa
from common.utils import plot_rewards,save_args
from common.utils import save_results,make_dir
def get_args():
"""
"""
curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # 获取当前时间
parser = argparse.ArgumentParser(description="hyperparameters")
parser.add_argument('--algo_name',default='Sarsa',type=str,help="name of algorithm")
parser.add_argument('--env_name',default='CliffWalking-v0',type=str,help="name of environment")
parser.add_argument('--train_eps',default=400,type=int,help="episodes of training") # 训练的回合数
parser.add_argument('--test_eps',default=20,type=int,help="episodes of testing") # 测试的回合数
parser.add_argument('--gamma',default=0.90,type=float,help="discounted factor") # 折扣因子
parser.add_argument('--epsilon_start',default=0.95,type=float,help="initial value of epsilon") # e-greedy策略中初始epsilon
parser.add_argument('--epsilon_end',default=0.01,type=float,help="final value of epsilon") # e-greedy策略中的终止epsilon
parser.add_argument('--epsilon_decay',default=300,type=int,help="decay rate of epsilon") # e-greedy策略中epsilon的衰减率
parser.add_argument('--lr',default=0.1,type=float,help="learning rate")
parser.add_argument('--device',default='cpu',type=str,help="cpu or cuda")
parser.add_argument('--result_path',default=curr_path + "/outputs/" + parser.parse_args().env_name + \
'/' + curr_time + '/results/' )
parser.add_argument('--model_path',default=curr_path + "/outputs/" + parser.parse_args().env_name + \
'/' + curr_time + '/models/' ) # path to save models
parser.add_argument('--save_fig',default=True,type=bool,help="if save figure or not")
args = parser.parse_args([])
return args
curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # 获取当前时间
def train(cfg,env,agent):
print('开始训练！')
print(f'环境:{cfg.env_name}, 算法:{cfg.algo_name}, 设备:{cfg.device}')
rewards = [] # 记录奖励
for i_ep in range(cfg.train_eps):
ep_reward = 0 # 记录每个回合的奖励
state = env.reset() # 重置环境,即开始新的回合
action = agent.sample(state)
while True:
action = agent.sample(state) # 根据算法采样一个动作
next_state, reward, done, _ = env.step(action) # 与环境进行一次动作交互
next_action = agent.sample(next_state)
agent.update(state, action, reward, next_state, next_action,done) # 算法更新
state = next_state # 更新状态
action = next_action
ep_reward += reward
if done:
break
rewards.append(ep_reward)
print(f"回合：{i_ep+1}/{cfg.train_eps}，奖励：{ep_reward:.1f}，Epsilon：{agent.epsilon}")
print('完成训练！')
return {"rewards":rewards}
def test(cfg,env,agent):
print('开始测试！')
print(f'环境：{cfg.env_name}, 算法：{cfg.algo_name}, 设备：{cfg.device}')
rewards = [] # 记录所有回合的奖励
for i_ep in range(cfg.test_eps):
ep_reward = 0 # 记录每个episode的reward
state = env.reset() # 重置环境, 重新开一局（即开始新的一个回合）
while True:
action = agent.predict(state) # 根据算法选择一个动作
next_state, reward, done, _ = env.step(action) # 与环境进行一个交互
state = next_state # 更新状态
ep_reward += reward
if done:
break
rewards.append(ep_reward)
print(f"回合数：{i_ep+1}/{cfg.test_eps}, 奖励：{ep_reward:.1f}")
print('完成测试！')
return {"rewards":rewards}
def env_agent_config(cfg,seed=1):
'''创建环境和智能体
Args:
cfg ([type]): [description]
seed (int, optional): 随机种子. Defaults to 1.
Returns:
env [type]: 环境
agent : 智能体
'''
env = gym.make(cfg.env_name)
env = CliffWalkingWapper(env)
env.seed(seed) # 设置随机种子
n_states = env.observation_space.n # 状态维度
n_actions = env.action_space.n # 动作维度
print(f"状态数：{n_states}，动作数：{n_actions}")
agent = Sarsa(n_actions,cfg)
return env,agent
if __name__ == "__main__":
cfg = get_args()
# 训练
env, agent = env_agent_config(cfg)
res_dic = train(cfg, env, agent)
make_dir(cfg.result_path, cfg.model_path)
save_args(cfg) # save parameters
agent.save(path=cfg.model_path) # save model
save_results(res_dic, tag='train',
path=cfg.result_path)
plot_rewards(res_dic['rewards'], cfg, tag="train")
# 测试
env, agent = env_agent_config(cfg)
agent.load(path=cfg.model_path) # 导入模型
res_dic = test(cfg, env, agent)
save_results(res_dic, tag='test',
path=cfg.result_path) # 保存结果
plot_rewards(res_dic['rewards'], cfg, tag="test") # 画出结果

2
projects/codes/common/launcher.py
View File

@@ -24,7 +24,7 @@ class Launcher:
save_results(res_dic, tag = 'train', path = cfg['result_path']) # save results
plot_rewards(res_dic['rewards'], cfg, path = cfg['result_path'],tag = "train") # plot results
# testing
env, agent = self.env_agent_config(cfg) # create new env for testing, sometimes can ignore this step
# env, agent = self.env_agent_config(cfg) # create new env for testing, sometimes can ignore this step
agent.load_model(path = cfg['model_path']) # load model
res_dic = self.test(cfg, env, agent)
save_results(res_dic, tag='test',

6
projects/codes/common/memories.py
View File

@@ -5,7 +5,7 @@
@Email: johnjim0816@gmail.com
@Date: 2020-06-10 15:27:16
@LastEditor: John
LastEditTime: 2022-08-22 17:23:21
LastEditTime: 2022-08-28 23:44:06
@Discription:
@Environment: python 3.7.7
'''
@@ -39,12 +39,12 @@ class ReplayBufferQue:
def __init__(self, capacity: int) -> None:
self.capacity = capacity
self.buffer = deque(maxlen=self.capacity)
def push(self,trainsitions):
def push(self,transitions):
'''_summary_
Args:
trainsitions (tuple): _description_
'''
self.buffer.append(trainsitions)
self.buffer.append(transitions)
def sample(self, batch_size: int, sequential: bool = False):
if batch_size > len(self.buffer):
batch_size = len(self.buffer)

63
projects/codes/common/models.py
View File

@@ -5,7 +5,7 @@ Author: John
Email: johnjim0816@gmail.com
Date: 2021-03-12 21:14:12
LastEditor: John
LastEditTime: 2021-09-15 13:21:03
LastEditTime: 2022-08-29 14:24:44
Discription:
Environment:
'''
@@ -31,40 +31,45 @@ class MLP(nn.Module):
x = F.relu(self.fc2(x))
return self.fc3(x)
class ActorSoftmax(nn.Module):
def __init__(self, input_dim, output_dim, hidden_dim=256):
super(ActorSoftmax, self).__init__()
self.fc1 = nn.Linear(input_dim, hidden_dim)
self.fc2 = nn.Linear(hidden_dim, output_dim)
def forward(self,state):
dist = F.relu(self.fc1(state))
dist = F.softmax(self.fc2(dist),dim=1)
return dist
class Critic(nn.Module):
def __init__(self, n_obs, n_actions, hidden_size, init_w=3e-3):
super(Critic, self).__init__()
def __init__(self,input_dim,output_dim,hidden_dim=256):
super(Critic,self).__init__()
assert output_dim == 1 # critic must output a single value
self.fc1 = nn.Linear(input_dim, hidden_dim)
self.fc2 = nn.Linear(hidden_dim, output_dim)
def forward(self,state):
value = F.relu(self.fc1(state))
value = self.fc2(value)
return value
self.linear1 = nn.Linear(n_obs + n_actions, hidden_size)
self.linear2 = nn.Linear(hidden_size, hidden_size)
self.linear3 = nn.Linear(hidden_size, 1)
# 随机初始化为较小的值
self.linear3.weight.data.uniform_(-init_w, init_w)
self.linear3.bias.data.uniform_(-init_w, init_w)
class ActorCriticSoftmax(nn.Module):
def __init__(self, input_dim, output_dim, actor_hidden_dim=256,critic_hidden_dim=256):
super(ActorCriticSoftmax, self).__init__()
def forward(self, state, action):
# 按维数1拼接
x = torch.cat([state, action], 1)
x = F.relu(self.linear1(x))
x = F.relu(self.linear2(x))
x = self.linear3(x)
return x
self.critic_fc1 = nn.Linear(input_dim, critic_hidden_dim)
self.critic_fc2 = nn.Linear(critic_hidden_dim, 1)
class Actor(nn.Module):
def __init__(self, n_obs, n_actions, hidden_size, init_w=3e-3):
super(Actor, self).__init__()
self.linear1 = nn.Linear(n_obs, hidden_size)
self.linear2 = nn.Linear(hidden_size, hidden_size)
self.linear3 = nn.Linear(hidden_size, n_actions)
self.actor_fc1 = nn.Linear(input_dim, actor_hidden_dim)
self.actor_fc2 = nn.Linear(actor_hidden_dim, output_dim)
self.linear3.weight.data.uniform_(-init_w, init_w)
self.linear3.bias.data.uniform_(-init_w, init_w)
def forward(self, state):
# state = Variable(torch.from_numpy(state).float().unsqueeze(0))
value = F.relu(self.critic_fc1(state))
value = self.critic_fc2(value)
def forward(self, x):
x = F.relu(self.linear1(x))
x = F.relu(self.linear2(x))
x = torch.tanh(self.linear3(x))
return x
policy_dist = F.relu(self.actor_fc1(state))
policy_dist = F.softmax(self.actor_fc2(policy_dist), dim=1)
return value, policy_dist
class ActorCritic(nn.Module):
def __init__(self, n_states, n_actions, hidden_dim=256):

2
projects/codes/envs/register.py
View File

@@ -5,7 +5,7 @@ def register_env(env_name):
if env_name == 'Racetrack-v0':
register(
id='Racetrack-v0',
entry_point='racetrack:RacetrackEnv',
entry_point='envs.racetrack:RacetrackEnv',
max_episode_steps=1000,
kwargs={}
)

15
projects/codes/scripts/A2C_CartPole-v0.sh Normal file
View File

@@ -0,0 +1,15 @@
# run A2C on CartPole-v0
# source conda, if you are already in proper conda environment, then comment the codes util "conda activate easyrl"
if [ -f "$HOME/anaconda3/etc/profile.d/conda.sh" ]; then
echo "source file at ~/anaconda3/etc/profile.d/conda.sh"
source ~/anaconda3/etc/profile.d/conda.sh
elif [ -f "$HOME/opt/anaconda3/etc/profile.d/conda.sh" ]; then
echo "source file at ~/opt/anaconda3/etc/profile.d/conda.sh"
source ~/opt/anaconda3/etc/profile.d/conda.sh
else
echo 'please manually config the conda source path'
fi
conda activate easyrl # easyrl here can be changed to another name of conda env that you have created
codes_dir=$(dirname $(dirname $(readlink -f "$0"))) # "codes" path
python $codes_dir/A2C/main.py

0
projects/codes/scripts/DQN_task2.sh → projects/codes/scripts/DQN_Acrobot-v1.sh
View File

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