jcgp.backend.function

Class SymbolicRegressionFunctions

java.lang.Object

jcgp.backend.function.FunctionSet

jcgp.backend.function.SymbolicRegressionFunctions

public class SymbolicRegressionFunctions
extends FunctionSet

This class contains all symbolic regression functions (defined as double functions in the classic CGP implementation) in static nested classes.
This is the function set used by SymbolicRegressionProblem.

Author:

Eduardo Pedroni

See Also:

SymbolicRegressionProblem

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SymbolicRegressionFunctions.Absolute Absolute returns the positive value of input 0.
static class	SymbolicRegressionFunctions.Addition Addition returns the sum of inputs 0 and 1.
static class	SymbolicRegressionFunctions.Cosine Cosine function, in radians.
static class	SymbolicRegressionFunctions.CosineAB Cosine of sum.
static class	SymbolicRegressionFunctions.Division Protected division, returns the quotient of input 0 (the dividend) and input 1 (the divisor).
static class	SymbolicRegressionFunctions.Exponential Exponential function.
static class	SymbolicRegressionFunctions.HyperbolicCosine Returns the hyperbolic cosine of input 0.
static class	SymbolicRegressionFunctions.HyperbolicSine Returns the hyperbolic sine of input 0.
static class	SymbolicRegressionFunctions.HyperbolicTangent Returns the hyperbolic tangent of input 0.
static class	SymbolicRegressionFunctions.Hypotenuse Hypotenuse function.
static class	SymbolicRegressionFunctions.LogBaseTen Protected log base 10 function.
static class	SymbolicRegressionFunctions.Multiplication Multiplication returns the product of inputs 0 and 1.
static class	SymbolicRegressionFunctions.NaturalLog Protected natural log function.
static class	SymbolicRegressionFunctions.Power Power function.
static class	SymbolicRegressionFunctions.Reciprocal Protected reciprocal function, returns (1 / input 0).
static class	SymbolicRegressionFunctions.Sine Sine function, in radians.
static class	SymbolicRegressionFunctions.SineAB Sine of sum.
static class	SymbolicRegressionFunctions.SquareRoot Protected square root function, returns the square root of the absolute value of input 0.
static class	SymbolicRegressionFunctions.Subtraction Subtraction returns the difference between inputs 0 and 1.
static class	SymbolicRegressionFunctions.Tangent Protected tangent function, in radians.

Field Summary

Fields

Modifier and Type	Field and Description
static double	DIVISION_LIMIT

Constructor Summary

Constructors

Constructor and Description
SymbolicRegressionFunctions() Creates a new instance of SymbolicRegressionFunctions.

Method Summary

Methods inherited from class jcgp.backend.function.FunctionSet

disableFunction, enableFunction, getAllowedFunction, getAllowedFunctionCount, getFunction, getMaxArity, getTotalFunctionCount, isEnabled

Methods inherited from class java.lang.Object

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

Field Detail

DIVISION_LIMIT

public static final double DIVISION_LIMIT

See Also:

Constant Field Values

Constructor Detail

SymbolicRegressionFunctions

public SymbolicRegressionFunctions()

Creates a new instance of SymbolicRegressionFunctions.