: Class KozaStatistics

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ec.gp.koza
Class KozaStatistics

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

All Implemented Interfaces:: Clique, java.io.Serializable, Setup

public class KozaStatistics
extends Statistics

A simple Koza-style statistics generator. Prints the mean fitness (raw,adjusted,hits) and best individual of each generation. At the end, prints the best individual of the run and the number of individuals processed.

If gather-full is true, then final timing information, number of nodes and depths of trees, approximate final memory utilization, etc. are also given.

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

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

KozaStatistics()


Method Summary

void finalStatistics(EvolutionState state, int result)
          Logs the best individual of the run.

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

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

Constructor Detail

KozaStatistics

public KozaStatistics()

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