Howto 15 - (RL) Train Robothtm with SB3 Wrapper
Ver. 1.0.2 (2021-12-08)
This module shows how to use SB3 wrapper to train Robothtm
Prerequisites
- Please install the following packages to run this examples properly:
Example Code
## -------------------------------------------------------------------------------------------------
## -- Project : FH-SWF Automation Technology - Common Code Base (CCB)
## -- Package : mlpro
## -- Module : Train Robothtm with SB3 Wrapper
## -------------------------------------------------------------------------------------------------
## -- History :
## -- yyyy-mm-dd Ver. Auth. Description
## -- 2021-12-01 0.0.0 MRD Creation
## -- 2021-12-01 1.0.0 MRD First Release
## -- 2021-12-07 1.0.1 DA Refactoring
## -- 2021-12-08 1.0.2 MRD Add parameter to change the hidden layer of the policy
## -------------------------------------------------------------------------------------------------
"""
Ver. 1.0.2 (2021-12-08)
This module shows how to use SB3 wrapper to train Robothtm
"""
import torch
from mlpro.bf.math import *
from mlpro.rl.models import *
from mlpro.rl.pool.envs.robotinhtm import RobotHTM
from stable_baselines3 import PPO
from mlpro.wrappers.sb3 import WrPolicySB32MLPro
from pathlib import Path
# 1 Implement your own RL scenario
class ScenarioRobotHTM(RLScenario):
C_NAME = 'Matrix'
def _setup(self, p_mode, p_ada, p_logging):
# 1 Setup environment
self._env = RobotHTM(p_logging=True)
policy_kwargs = dict(activation_fn=torch.nn.Tanh,
net_arch=[dict(pi=[128, 128], vf=[128, 128])])
policy_sb3 = PPO(
policy="MlpPolicy",
n_steps=100,
env=None,
_init_setup_model=False,
policy_kwargs=policy_kwargs,
seed=1)
policy_wrapped = WrPolicySB32MLPro(
p_sb3_policy=policy_sb3,
p_observation_space=self._env.get_state_space(),
p_action_space=self._env.get_action_space(),
p_ada=p_ada,
p_logging=p_logging)
# 2 Setup standard single-agent with own policy
return Agent(
p_policy=policy_wrapped,
p_envmodel=None,
p_name='Smith',
p_ada=p_ada,
p_logging=p_logging
)
# 2 Create scenario and start training
if __name__ == "__main__":
# 3.1 Parameters for demo mode
cycle_limit = 100000
adaptation_limit = 50
stagnation_limit = 5
eval_frequency = 5
eval_grp_size = 5
logging = Log.C_LOG_WE
visualize = True
path = str(Path.home())
plotting = True
else:
# 3.2 Parameters for internal unit test
cycle_limit = 50
adaptation_limit = 5
stagnation_limit = 5
eval_frequency = 2
eval_grp_size = 1
logging = Log.C_LOG_NOTHING
visualize = False
path = None
plotting = False
# 3 Train agent in scenario
now = datetime.now()
training = RLTraining(
p_scenario_cls=ScenarioRobotHTM,
p_cycle_limit=cycle_limit,
p_cycles_per_epi_limit=100,
p_adaptation_limit=adaptation_limit,
p_stagnation_limit=stagnation_limit,
p_eval_frequency=eval_frequency,
p_eval_grp_size=eval_grp_size,
p_path=path,
p_visualize=visualize,
p_logging=logging
)
training.run()
# 4 Create Plotting Class
class MyDataPlotting(DataPlotting):
def get_plots(self):
"""
A function to plot data
"""
for name in self.data.names:
maxval = 0
minval = 0
if self.printing[name][0]:
fig = plt.figure(figsize=(7,7))
raw = []
label = []
ax = fig.subplots(1,1)
ax.set_title(name)
ax.grid(True, which="both", axis="both")
for fr_id in self.data.frame_id[name]:
raw.append(np.sum(self.data.get_values(name,fr_id)))
if self.printing[name][1] == -1:
maxval = max(raw)
minval = min(raw)
else:
maxval = self.printing[name][2]
minval = self.printing[name][1]
label.append("%s"%fr_id)
ax.plot(raw)
ax.set_ylim(minval-(abs(minval)*0.1), maxval+(abs(maxval)*0.1))
ax.set_xlabel("Episode")
ax.legend(label, bbox_to_anchor = (1,0.5), loc = "center left")
self.plots[0].append(name)
self.plots[1].append(ax)
if self.showing:
plt.show()
else:
plt.close(fig)
# 5 Plotting 1 MLpro
data_printing = {"Cycle": [False],
"Day": [False],
"Second": [False],
"Microsecond": [False],
"Smith": [True,-1]}
mem = training.get_results().ds_rewards
mem_plot = MyDataPlotting(mem, p_showing=plotting, p_printing=data_printing)
mem_plot.get_plots()
Results
…