com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod

Class AbsoluteError

java.lang.Object

com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.PenaltyFunction

com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.MultiplierPenalty

com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.AbsoluteError

All Implemented Interfaces:

Function<Vector,java.lang.Double>, RealScalarFunction, java.io.Serializable

public class AbsoluteError
extends MultiplierPenalty

This penalty function sums up the absolute error penalties. It applies to equality constrained problems.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.numericalmethod.suanshu.analysis.function.Function

Function.EvaluationException

Field Summary

Fields inherited from class com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.MultiplierPenalty

constraints, weights

Constructor Summary

Constructors

Constructor and Description
AbsoluteError(EqualityConstraints constraints) Construct an absolute error penalty function from a collection of equality constraints.
AbsoluteError(EqualityConstraints constraints, double weight) Construct an absolute error penalty function from a collection of equality constraints.
AbsoluteError(EqualityConstraints constraints, double[] weights) Construct an absolute error penalty function from a collection of equality constraints.

Method Summary

Modifier and Type	Method and Description
java.lang.Double	evaluate(Vector x) Evaluate the function f at x, where x is from the domain.

Methods inherited from class com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.MultiplierPenalty

dimensionOfDomain

Methods inherited from class com.numericalmethod.suanshu.optimization.constrained.general.penaltymethod.PenaltyFunction

dimensionOfRange

Methods inherited from class java.lang.Object

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

Constructor Detail

AbsoluteError

public AbsoluteError(EqualityConstraints constraints,
                     double[] weights)

Construct an absolute error penalty function from a collection of equality constraints.

Parameters:

constraints - a collection of equality constraints

weights - the weights assigned to the constraints

AbsoluteError

public AbsoluteError(EqualityConstraints constraints,
                     double weight)

Construct an absolute error penalty function from a collection of equality constraints. This assigns the same weight to all constraints.

Parameters:

constraints - a collection of equality constraints

weight - the same weight assigned to all constraints

AbsoluteError

public AbsoluteError(EqualityConstraints constraints)

Construct an absolute error penalty function from a collection of equality constraints. We assign the same default weight to all constraints.

Parameters:

constraints - a collection of equality constraints

Method Detail

evaluate

public java.lang.Double evaluate(Vector x)

Description copied from interface: Function

Evaluate the function f at x, where x is from the domain.

Parameters:

x - x

Returns:

f(x)