classifier.gp
Class SelectionFunction

java.lang.Object
  classifier.gp.SelectionFunction

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BestSelection, FitnessOverselected, FitnessProportionate, RandomSelection, Tournament, WorstSelection

public abstract class SelectionFunction

extends java.lang.Object

implements java.io.Serializable

To choose the current method to select individual program

Version:

0.1

Author:

Sacchi Matteo, Sassi Federico

See Also:

Serialized Form

Field Summary

(package private) static int	BESTSELECTION 5
(package private) static int	FITNESSOVERSELECTED 2
(package private) static int	FITNESSPROPORTIONATE 3
(package private) static int	RANDOMSELECTION 4
(package private) static int	TOURNAMENT 1
(package private) static int	WORSTSELECTION 6

Constructor Summary

SelectionFunction()

Method Summary

protected static SelectionFunction	createSelectionFunction(int selection_function, java.util.Properties p) To choose the selection function through a number
abstract Individual	select(Population p) Select an individual on the basis of the selected criteria
java.lang.String	toString() Just a string

Methods inherited from class java.lang.Object

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

Field Detail

TOURNAMENT

static final int TOURNAMENT

1

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Constant Field Values

FITNESSOVERSELECTED

static final int FITNESSOVERSELECTED

2

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Constant Field Values

FITNESSPROPORTIONATE

static final int FITNESSPROPORTIONATE

3

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Constant Field Values

RANDOMSELECTION

static final int RANDOMSELECTION

4

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Constant Field Values

BESTSELECTION

static final int BESTSELECTION

5

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Constant Field Values

WORSTSELECTION

static final int WORSTSELECTION

6

See Also:

Constant Field Values

Constructor Detail

SelectionFunction

public SelectionFunction()

Method Detail

select

public abstract Individual select(Population p)

Select an individual on the basis of the selected criteria

Parameters:

p - population of origin

Returns:

the selected individual

toString

public java.lang.String toString()

Just a string

Returns:

"Funzione di Selezione: "

createSelectionFunction

protected static SelectionFunction createSelectionFunction(int selection_function,
                                                           java.util.Properties p)

To choose the selection function through a number

Parameters:

selection_function - number that specify which funcition to use;

p - parameters to pass to the selected funciton

Returns:

a new instance of the selected function with the parameters setted