ec.gp.koza
Class ReproductionPipeline

java.lang.Object
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  +--ec.BreedingSource
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        +--ec.BreedingPipeline
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              +--ec.gp.GPBreedingPipeline
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                    +--ec.gp.koza.ReproductionPipeline

public class ReproductionPipeline
extends GPBreedingPipeline

ReproductionPipeline is a GPBreedingPipelien which Implements the Reproduction operator as described in Koza I. It's very simple -- an individual is selected and a copy is added to the new population.

This pipeline produces 1 new individual per produce(...) call.

Typical Number of Individuals Produced Per produce(...) call
1

Number of Sources
1

Default Base
gp.koza.reproduce (not that it matters)

See Also:
Serialized Form

Field Summary
static int INDS_PRODUCED
           
static int NUM_SOURCES
           
static java.lang.String P_REPRODUCE
           
 
Fields inherited from class ec.gp.GPBreedingPipeline
P_NODESELECTOR, P_TREE, TREE_UNFIXED
 
Fields inherited from class ec.BreedingPipeline
DYNAMIC_SOURCES, P_NUMSOURCES, P_SOURCE, sources, V_SAME
 
Fields inherited from class ec.BreedingSource
CHECKBOUNDARY, DEFAULT_PRODUCED, NO_PROBABILITY, P_PROB, probability, UNUSED
 
Constructor Summary
ReproductionPipeline()
           
 
Method Summary
 Parameter defaultBase()
          Returns the default base for this prototype.
 int numSources()
          Returns the number of sources to this pipeline.
 int produce(int min, int max, int start, int subpopulation, Individual[] inds, EvolutionState state, int thread)
          Produces n individuals from the given subpopulation and puts them into inds[start...start+n-1], where n = Min(Max(q,min),max), where q is the "typical" number of individuals the BreedingSource produces in one shot, and returns n.
 int typicalIndsProduced()
          Returns 1
 
Methods inherited from class ec.gp.GPBreedingPipeline
produces
 
Methods inherited from class ec.BreedingPipeline
preparePipeline, prepareToProduce, protoClone, setup
 
Methods inherited from class ec.BreedingSource
getProbability, pickRandom, protoCloneSimple, setProbability, setupProbabilities
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

P_REPRODUCE

public static final java.lang.String P_REPRODUCE

INDS_PRODUCED

public static final int INDS_PRODUCED

NUM_SOURCES

public static final int NUM_SOURCES
Constructor Detail

ReproductionPipeline

public ReproductionPipeline()
Method Detail

defaultBase

public Parameter defaultBase()
Description copied from interface: Prototype
Returns the default base for this prototype. This should generally be implemented by building off of the static base() method on the DefaultsForm object for the prototype's package. This should be callable during setup(...).

numSources

public int numSources()
Description copied from class: BreedingPipeline
Returns the number of sources to this pipeline. Called during BreedingPipeline's setup. Be sure to return a value > 0, or DYNAMIC_SOURCES which indicates that setup should check the parameter file for the parameter "num-sources" to make its determination.
Overrides:
numSources in class BreedingPipeline

typicalIndsProduced

public int typicalIndsProduced()
Returns 1
Overrides:
typicalIndsProduced in class BreedingSource

produce

public int produce(int min,
                   int max,
                   int start,
                   int subpopulation,
                   Individual[] inds,
                   EvolutionState state,
                   int thread)
            throws java.lang.CloneNotSupportedException
Description copied from class: BreedingSource
Produces n individuals from the given subpopulation and puts them into inds[start...start+n-1], where n = Min(Max(q,min),max), where q is the "typical" number of individuals the BreedingSource produces in one shot, and returns n. max must be >= min, and min must be >= 1. For example, crossover might typically produce two individuals, tournament selection might typically produce a single individual, etc.
Overrides:
produce in class BreedingSource