ec.simple
Class SimpleShortStatistics

java.lang.Object
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  +--ec.Statistics
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        +--ec.simple.SimpleShortStatistics

All Implemented Interfaces:

Clique, java.io.Serializable, Setup

public class SimpleShortStatistics

extends Statistics

A Simple-style statistics generator, intended to be easily parseable with awk or other Unix tools. Prints fitness information, one generation (or pseudo-generation) 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 generation. The first items on a line are always:

• The generation number
• (if gather-full) how long initialization took in milliseconds, or how long the previous generation took to breed to form this generation
• (if gather-full) how many bytes initialization took, or how how many bytes the previous generation took to breed to form this generation. This utilization is an approximation only, made by the Java system, and does not take into consideration the possibility of garbage collection (which might make the number negative).
• (if gather-full) How long evaluation took in milliseconds this generation
• (if gather-full) how many bytes evaluation took this generation. This utilization is an approximation only, made by the Java system, and does not take into consideration the possibility of garbage collection (which might make the number negative).

Then the following items appear, per subpopulation:

• (if gather-full) The average size of an individual this generation
• (if gather-full) The average size of an individual so far in the run
• The mean fitness of the subpopulation this generation
• The best fitness of the subpopulation this generation
• The best fitness 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 The best individual we've found so far
Individual[]	best_of_run_a
boolean	doFull
long	lastTime
long	lastUsage
long[]	lengths
static java.lang.String	P_FULL
static java.lang.String	P_STATISTICS_FILE log file parameter
int	statisticslog The Statistics' log

Fields inherited from class ec.Statistics

children, P_CHILD, P_NUMCHILDREN

Constructor Summary

SimpleShortStatistics()

Method Summary

protected void	_postEvaluationStatistics(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	postBreedingStatistics(EvolutionState state) Called immediately after breeding occurs.
void	postEvaluationStatistics(EvolutionState state) Called immediately after evaluation occurs.
void	postInitializationStatistics(EvolutionState state) Called immediately after population initialization occurs.
void	preBreedingStatistics(EvolutionState state) Called immediately before breeding occurs.
void	preEvaluationStatistics(EvolutionState state) Called immediately before evaluation occurs.
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

finalStatistics, postCheckpointStatistics, postPostBreedingExchangeStatistics, postPreBreedingExchangeStatistics, preCheckpointStatistics, prePostBreedingExchangeStatistics, prePreBreedingExchangeStatistics

Methods inherited from class java.lang.Object

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

Field Detail

P_STATISTICS_FILE

public static java.lang.String P_STATISTICS_FILE

log file parameter

statisticslog

public int statisticslog

The Statistics' log

best_of_run

public Individual best_of_run

The best individual we've found so far

P_FULL

public static java.lang.String P_FULL

doFull

public boolean doFull

best_of_run_a

public Individual[] best_of_run_a

lengths

public long[] lengths

lastTime

public long lastTime

lastUsage

public long lastUsage

Constructor Detail

SimpleShortStatistics

public SimpleShortStatistics()

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)

Description copied from class: Statistics

Called immediately before population initialization occurs.

Overrides:

preInitializationStatistics in class Statistics

postInitializationStatistics

public void postInitializationStatistics(EvolutionState state)

Description copied from class: Statistics

Called immediately after population initialization occurs.

Overrides:

postInitializationStatistics in class Statistics

preBreedingStatistics

public void preBreedingStatistics(EvolutionState state)

Description copied from class: Statistics

Called immediately before breeding occurs.

Overrides:

preBreedingStatistics in class Statistics

postBreedingStatistics

public void postBreedingStatistics(EvolutionState state)

Description copied from class: Statistics

Called immediately after breeding occurs.

Overrides:

postBreedingStatistics in class Statistics

preEvaluationStatistics

public void preEvaluationStatistics(EvolutionState state)

Description copied from class: Statistics

Called immediately before evaluation occurs.

Overrides:

preEvaluationStatistics in class Statistics

_postEvaluationStatistics

protected void _postEvaluationStatistics(EvolutionState state)

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

postEvaluationStatistics

public void postEvaluationStatistics(EvolutionState state)

Description copied from class: Statistics

Called immediately after evaluation occurs.

Overrides:

postEvaluationStatistics in class Statistics