ec.gp.koza
Class KozaSteadyStateStatistics

java.lang.Object
  |
  +--ec.Statistics
        |
        +--ec.gp.koza.KozaSteadyStateStatistics

All Implemented Interfaces:

Clique, java.io.Serializable, Setup, SteadyStateStatisticsForm

public class KozaSteadyStateStatistics

extends Statistics

implements SteadyStateStatisticsForm

A version of KozaSteadyStateStatistics intended to be used with steady-state evolution. Prints fitness information, one pseudogeneration (or pseudo-pseudogeneration) per line. If gather-full is true, then timing information, number of nodes and depths of trees, etc. are also given. No final statistics information is given.

Each line represents a single pseudogeneration. The first items on a line are always:

• The number of individuals evaluated so far
• (if gather-full) "--" [normally: how long initialization took in milliseconds, how long the previous pseudogeneration took to breed to form this pseudogeneration]
• (if gather-full) "--" [normally: how many bytes initialization took, or how how many bytes the previous pseudogeneration took to breed to form this pseudogeneration.]
• (if gather-full) "--" [normally: How long evaluation took in milliseconds this pseudogeneration]
• (if gather-full) "--" [normally: how many bytes evaluation took this pseudogeneration]

Then the following items appear, per subpopulation:

• (if gather-full) The average number of nodes used per individual at the pseudogeneration mark
• (if gather-full) [a|b|c...], representing the average number of nodes used in tree a, b, etc. of individuals at the pseudogeneration mark
• (if gather-full) The average number of nodes used per individual so far in the run
• (if gather-full) The average depth of any tree per individual at the pseudogeneration mark
• (if gather-full) [a|b|c...], representing the average depth of tree a, b, etc. of individuals at the pseudogeneration mark
• (if gather-full) The average depth of any tree per individual so far in the run
• The mean raw fitness of the subpopulation at the pseudogeneration mark
• The mean adjusted fitness of the subpopulation at the pseudogeneration mark
• The mean hits of the subpopulation at the pseudogeneration mark
• The best raw fitness of the subpopulation at the pseudogeneration mark
• The best adjusted fitness of the subpopulation at the pseudogeneration mark
• The best hits of the subpopulation at the pseudogeneration mark
• The best raw fitness of the subpopulation so far in the run
• The best adjusted fitness of the subpopulation so far in the run
• The best hits of the subpopulation so far in the run

Parameters

base.file String (a filename), or nonexistant (signifies stdout)	(the log for statistics)
base.gather-full bool = true or false (default)	(should we full statistics on individuals (will run slower, though the slowness is due to off-line processing that won't mess up timings)

See Also:

Serialized Form

Field Summary

Individual[]	best_of_run_a
boolean	doFull
long[][]	genDepths
long[][]	genNodes
long	lastTime
long	lastUsage
static java.lang.String	P_FULL
static java.lang.String	P_STATISTICS_FILE log file parameter
int	statisticslog The Statistics' log
long[]	totalDepths
long[]	totalNodes

Fields inherited from class ec.Statistics

children, P_CHILD, P_NUMCHILDREN

Constructor Summary

KozaSteadyStateStatistics()

Method Summary

protected void	_nextPseudogenerationStatistics(EvolutionState state) Prints out the statistics, but does not end with a println -- this lets overriding methods print additional statistics on the same line
void	finalStatistics(EvolutionState state, int result) Called immediately after the run has completed.
void	individualsBredStatistics(SteadyStateEvolutionState state) Called each time new individuals are bred during the steady-state process.
void	individualsEvaluatedStatistics(SteadyStateEvolutionState state) Called each time new individuals are evaluated during the steady-state process.
void	nextPseudogenerationStatistics(SteadyStateEvolutionState state) Called each time one full pseudogeneration of individuals has been bred and evaluated.
void	postInitialEvaluationStatistics(SteadyStateEvolutionState state) Called immediately after the initial generation is evaluated.
void	postInitializationStatistics(EvolutionState state) Called each time new individuals are bred during the steady-state process.
void	preInitialEvaluationStatistics(SteadyStateEvolutionState state) Called immediately before the initial generation is evaluated.
void	preInitializationStatistics(EvolutionState state) Called immediately before population initialization occurs.
void	setup(EvolutionState state, Parameter base) Sets up the object by reading it from the parameters stored in state, built off of the parameter base base.

Methods inherited from class ec.Statistics

postBreedingStatistics, postCheckpointStatistics, postEvaluationStatistics, postPostBreedingExchangeStatistics, postPreBreedingExchangeStatistics, preBreedingStatistics, preCheckpointStatistics, preEvaluationStatistics, prePostBreedingExchangeStatistics, prePreBreedingExchangeStatistics

Methods inherited from class java.lang.Object

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

Field Detail

P_FULL

public static final java.lang.String P_FULL

doFull

public boolean doFull

best_of_run_a

public Individual[] best_of_run_a

totalNodes

public long[] totalNodes

totalDepths

public long[] totalDepths

genNodes

public long[][] genNodes

genDepths

public long[][] genDepths

lastTime

public long lastTime

lastUsage

public long lastUsage

P_STATISTICS_FILE

public static final java.lang.String P_STATISTICS_FILE

log file parameter

statisticslog

public int statisticslog

The Statistics' log

Constructor Detail

KozaSteadyStateStatistics

public KozaSteadyStateStatistics()

Method Detail

setup

public void setup(EvolutionState state,
                  Parameter base)

Description copied from interface: Setup

Sets up the object by reading it from the parameters stored in state, built off of the parameter base base. If an ancestor implements this method, be sure to call super.setup(state,base); before you do anything else.

Overrides:

setup in class Statistics

preInitializationStatistics

public void preInitializationStatistics(EvolutionState state)

Called immediately before population initialization occurs.

Specified by:

preInitializationStatistics in interface SteadyStateStatisticsForm

Overrides:

preInitializationStatistics in class Statistics

preInitialEvaluationStatistics

public void preInitialEvaluationStatistics(SteadyStateEvolutionState state)

Called immediately before the initial generation is evaluated.

Specified by:

preInitialEvaluationStatistics in interface SteadyStateStatisticsForm

postInitialEvaluationStatistics

public void postInitialEvaluationStatistics(SteadyStateEvolutionState state)

Called immediately after the initial generation is evaluated.

Specified by:

postInitialEvaluationStatistics in interface SteadyStateStatisticsForm

postInitializationStatistics

public void postInitializationStatistics(EvolutionState state)

Called each time new individuals are bred during the steady-state process. You can look up the individuals in state.newIndividuals[]

Specified by:

postInitializationStatistics in interface SteadyStateStatisticsForm

Overrides:

postInitializationStatistics in class Statistics

_nextPseudogenerationStatistics

protected void _nextPseudogenerationStatistics(EvolutionState state)

Prints out the statistics, but does not end with a println -- this lets overriding methods print additional statistics on the same line

nextPseudogenerationStatistics

public void nextPseudogenerationStatistics(SteadyStateEvolutionState state)

Description copied from interface: SteadyStateStatisticsForm

Called each time one full pseudogeneration of individuals has been bred and evaluated. If the first total number of individuals is much larger than the pseudogeneration, then this may only get called once for the initial generation.

Specified by:

nextPseudogenerationStatistics in interface SteadyStateStatisticsForm

individualsBredStatistics

public void individualsBredStatistics(SteadyStateEvolutionState state)

Description copied from interface: SteadyStateStatisticsForm

Called each time new individuals are bred during the steady-state process. You can look up the individuals in state.newIndividuals[]

Specified by:

individualsBredStatistics in interface SteadyStateStatisticsForm

individualsEvaluatedStatistics

public void individualsEvaluatedStatistics(SteadyStateEvolutionState state)

Description copied from interface: SteadyStateStatisticsForm

Called each time new individuals are evaluated during the steady-state process. You can look up the individuals in state.newIndividuals[]

Specified by:

individualsEvaluatedStatistics in interface SteadyStateStatisticsForm

finalStatistics

public void finalStatistics(EvolutionState state,
                            int result)

Description copied from interface: SteadyStateStatisticsForm

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.

Specified by:

finalStatistics in interface SteadyStateStatisticsForm

Overrides:

finalStatistics in class Statistics