ec.steadystate

Interface SteadyStateStatisticsForm

All Known Implementing Classes:

MultiObjectiveStatistics, SimpleStatistics

public interface SteadyStateStatisticsForm

This interface defines the hooks for SteadyStateEvolutionState objects to update themselves on. Note that the the only methods in common with the standard statistics are initialization and final. This is an optional interface: SteadyStateEvolutionState will complain, but will permit Statistics objects that don't adhere to it, though they will only have their initialization and final statistics methods called!

See SteadyStateEvolutionState for how regular Statistics objects' hook methods are called in steady state evolution.

Method Summary

Modifier and Type	Method and Description
void	enteringInitialPopulationStatistics(SteadyStateEvolutionState state) Called when we created an empty initial Population.
void	enteringSteadyStateStatistics(int subpop, SteadyStateEvolutionState state) Called when we have filled the initial population and are entering the steady state.
void	finalStatistics(EvolutionState state, int result) Called immediately after the run has completed.
void	generationBoundaryStatistics(EvolutionState state) Called when the generation count increments
void	individualsBredStatistics(SteadyStateEvolutionState state, Individual[] individuals) Called each time new individuals are bred during the steady-state process.
void	individualsEvaluatedStatistics(SteadyStateEvolutionState state, Individual[] newIndividuals, Individual[] oldIndividuals, int[] subpopulations, int[] indices) Called each time new individuals are evaluated during the steady-state process, NOT including the initial generation's individuals.
void	postCheckpointStatistics(EvolutionState state) Called immediately after checkpointing occurs.
void	postPostBreedingExchangeStatistics(EvolutionState state) Called immediately after the post-breeding exchange occurs.
void	postPreBreedingExchangeStatistics(EvolutionState state) Called immediately after the pre-breeding exchange occurs.
void	preCheckpointStatistics(EvolutionState state) Called immediately before checkpointing occurs.
void	prePostBreedingExchangeStatistics(EvolutionState state) Called immediately before the post-breeding exchange occurs.
void	prePreBreedingExchangeStatistics(EvolutionState state) Called immediately before the pre-breeding exchange occurs.

Method Detail

enteringInitialPopulationStatistics

void enteringInitialPopulationStatistics(SteadyStateEvolutionState state)

Called when we created an empty initial Population.

enteringSteadyStateStatistics

void enteringSteadyStateStatistics(int subpop,
                                   SteadyStateEvolutionState state)

Called when we have filled the initial population and are entering the steady state.

individualsBredStatistics

void individualsBredStatistics(SteadyStateEvolutionState state,
                               Individual[] individuals)

Called each time new individuals are bred during the steady-state process.

individualsEvaluatedStatistics

void individualsEvaluatedStatistics(SteadyStateEvolutionState state,
                                    Individual[] newIndividuals,
                                    Individual[] oldIndividuals,
                                    int[] subpopulations,
                                    int[] indices)

Called each time new individuals are evaluated during the steady-state process, NOT including the initial generation's individuals.

generationBoundaryStatistics

void generationBoundaryStatistics(EvolutionState state)

Called when the generation count increments

preCheckpointStatistics

void preCheckpointStatistics(EvolutionState state)

Called immediately before checkpointing occurs.

postCheckpointStatistics

void postCheckpointStatistics(EvolutionState state)

Called immediately after checkpointing occurs.

prePreBreedingExchangeStatistics

void prePreBreedingExchangeStatistics(EvolutionState state)

Called immediately before the pre-breeding exchange occurs.

postPreBreedingExchangeStatistics

void postPreBreedingExchangeStatistics(EvolutionState state)

Called immediately after the pre-breeding exchange occurs.

prePostBreedingExchangeStatistics

void prePostBreedingExchangeStatistics(EvolutionState state)

Called immediately before the post-breeding exchange occurs.

postPostBreedingExchangeStatistics

void postPostBreedingExchangeStatistics(EvolutionState state)

Called immediately after the post-breeding exchange occurs.

finalStatistics

void finalStatistics(EvolutionState state,
                     int result)

Called immediately after the run has completed. result is either state.R_FAILURE, indicating that an ideal individual was not found, or state.R_SUCCESS, indicating that an ideal individual was found.