EXARL Agents

Creating custom agents

• EXARL extends OpenAI gym’s environment registration to agents

• Agents inherit from exarl.ExaAgent

Example:-

class agentName(exarl.ExaAgent):
   ...

Agents must include the following functions:

get_weights()   # get target model weights
set_weights()   # set target model weights
train()         # train the agent
update()        # update target model
action()        # Next action based on current state
load()          # load weights from memory
save()          # save weights to memory
monitor()       # monitor progress of learning

Register the agent in ExaRL/agents/__init__.py

from .registration import register, make

register(
   id='fooAgent-v0',
   entry_point='agents.agent_vault:FooAgent',
)

The id variable will be passed to exarl.make() to call the agent.

The file `ExaRL/agents/agent_vault/__init__.py` should include

from agents.agent_vault.foo_agent import FooAgent

where ExaRL/agents/agent_vault/foo_agent.py is the file containing your agent