uk.ac.liv.auction.agent
Class MixedStrategy

java.lang.Object
  uk.ac.liv.auction.agent.AbstractStrategy
      uk.ac.liv.auction.agent.MixedStrategy

All Implemented Interfaces:

AuctionEventListener, java.lang.Cloneable, Parameterizable, Prototypeable, Resetable, java.io.Serializable, Strategy

public class MixedStrategy

extends AbstractStrategy

implements Parameterizable, Resetable, java.io.Serializable

A class representing a mixed strategy. A mixed strategy is a strategy in which we play a number of pure strategies with different probabilities on each auction round.

Parameters

base.n int >= 1	(the number of pure strategies)
base.i classname, inherits uk.ac.liv.auction.agent.Strategy	(the class for pure strategy #i)
base.i.prob double [0, 1]	(the probability of playing pure strategy #i)

Version:

$Revision: 1.19 $

Author:

Steve Phelps

See Also:

Serialized Form

Field Summary

protected AbstractStrategy	currentStrategy The strategy currently being played
protected DiscreteProbabilityDistribution	probabilities The probabilities for playing each strategy
protected AbstractStrategy[]	pureStrategies The pure strategy components

Fields inherited from class uk.ac.liv.auction.agent.AbstractStrategy

agent, auction, currentShout

Constructor Summary

MixedStrategy()

MixedStrategy(DiscreteProbabilityDistribution probabilities, AbstractStrategy[] pureStrategies)

Method Summary

void	addPureStrategies(java.util.Collection pureStrategies)
int	determineQuantity(Auction auction)
void	endOfRound(Auction auction)
Strategy	getCurrentStrategy()
boolean	modifyShout(Shout.MutableShout shout) Modify the price and quantity of the given shout according to this strategy.
void	reset() Reinitialise our state to the original settings.
void	setProbabilityDistribution(DiscreteProbabilityDistribution probabilities)
void	setup(ec.util.ParameterDatabase parameters, ec.util.Parameter base) Initialise this object from a parameter database.

Methods inherited from class uk.ac.liv.auction.agent.AbstractStrategy

eventOccurred, getAgent, initialise, modifyShout, protoClone, setAgent

Methods inherited from class java.lang.Object

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

Field Detail

probabilities

protected DiscreteProbabilityDistribution probabilities

The probabilities for playing each strategy

pureStrategies

protected AbstractStrategy[] pureStrategies

The pure strategy components

currentStrategy

protected AbstractStrategy currentStrategy

The strategy currently being played

Constructor Detail

MixedStrategy

public MixedStrategy(DiscreteProbabilityDistribution probabilities,
                     AbstractStrategy[] pureStrategies)

MixedStrategy

public MixedStrategy()

Method Detail

setup

public void setup(ec.util.ParameterDatabase parameters,
                  ec.util.Parameter base)

Description copied from interface: Parameterizable

Initialise this object from a parameter database.

Specified by:

setup in interface Parameterizable

addPureStrategies

public void addPureStrategies(java.util.Collection pureStrategies)

setProbabilityDistribution

public void setProbabilityDistribution(DiscreteProbabilityDistribution probabilities)

modifyShout

public boolean modifyShout(Shout.MutableShout shout)

Description copied from class: AbstractStrategy

Modify the price and quantity of the given shout according to this strategy.

Overrides:

modifyShout in class AbstractStrategy

Returns:

false if no shout is to be placed at this time

endOfRound

public void endOfRound(Auction auction)

Specified by:

endOfRound in class AbstractStrategy

getCurrentStrategy

public Strategy getCurrentStrategy()

reset

public void reset()

Description copied from interface: Resetable

Reinitialise our state to the original settings.

Specified by:

reset in interface Resetable

Overrides:

reset in class AbstractStrategy

determineQuantity

public int determineQuantity(Auction auction)

Specified by:

determineQuantity in interface Strategy