burlap.domain.singleagent.graphdefined

Class GraphRF

java.lang.Object

burlap.domain.singleagent.graphdefined.GraphRF

All Implemented Interfaces:

RewardFunction

public abstract class GraphRF
extends java.lang.Object
implements RewardFunction

An abstract class for more easily defining RewardFunctions for GraphDefinedDomain Domains. This class implements the standard reward(State, Action, State) method by converting the State objects to their graph node integer representation and the Action to its integer representation and then returning the value of reward(int, int, int), which is an abstract method that the client must implement.

Author:

James MacGlashan.

Constructor Summary

Constructors

Constructor and Description
GraphRF()

Method Summary

Modifier and Type	Method and Description
abstract double	reward(int s, int a, int sprime) Returns the reward for taking action a in state node s and transition to state node sprime.
double	reward(State s, Action a, State sprime) Returns the reward received when action a is executed in state s and the agent transitions to state sprime.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GraphRF

public GraphRF()

Method Detail

reward

public double reward(State s,
                     Action a,
                     State sprime)

Description copied from interface: RewardFunction

Returns the reward received when action a is executed in state s and the agent transitions to state sprime.

Specified by:

reward in interface RewardFunction

Parameters:

s - the state in which the action was executed

a - the action executed

sprime - the state to which the agent transitioned

Returns:

the reward received when action a is executed in state s and the agent transitions to state sprime.

reward

public abstract double reward(int s,
                              int a,
                              int sprime)

Returns the reward for taking action a in state node s and transition to state node sprime.

Parameters:

s - the previous state node id

a - the action id

sprime - the next state node id

Returns:

the received reward for the transition in the graph