Package org.apache.commons.math.optimization

Class VectorialPointValuePair

java.lang.Object

org.apache.commons.math.optimization.VectorialPointValuePair

All Implemented Interfaces:

Serializable

public class VectorialPointValuePair
extends Object
implements Serializable

This class holds a point and the vectorial value of an objective function at this point.

This is a simple immutable container.

Since:

2.0

See Also:

RealPointValuePair, MultivariateVectorialFunction, Serialized Form

Constructor Summary

Constructors

Constructor	Description
VectorialPointValuePair(double[] point, double[] value)	Build a point/objective function value pair.
VectorialPointValuePair(double[] point, double[] value, boolean copyArray)	Build a point/objective function value pair.

Method Summary

Modifier and Type	Method	Description
double[]	getPoint()	Get the point.
double[]	getPointRef()	Get a reference to the point.
double[]	getValue()	Get the value of the objective function.
double[]	getValueRef()	Get a reference to the value of the objective function.

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorialPointValuePair

public VectorialPointValuePair(double[] point,
                               double[] value)

Build a point/objective function value pair.

Parameters:

point - point coordinates (the built instance will store a copy of the array, not the array passed as argument)

value - value of an objective function at the point

VectorialPointValuePair

public VectorialPointValuePair(double[] point,
                               double[] value,
                               boolean copyArray)

Build a point/objective function value pair.

Parameters:

point - point coordinates (the built instance will store a copy of the array, not the array passed as argument)

value - value of an objective function at the point

copyArray - if true, the input arrays will be copied, otherwise they will be referenced

Method Detail

getPoint

public double[] getPoint()

Get the point.

Returns:

a copy of the stored point

getPointRef

public double[] getPointRef()

Get a reference to the point.

This method is provided as a convenience to avoid copying the array, the elements of the array should not be modified.

Returns:

a reference to the internal array storing the point

getValue

public double[] getValue()

Get the value of the objective function.

Returns:

a copy of the stored value of the objective function

getValueRef

public double[] getValueRef()

Get a reference to the value of the objective function.

This method is provided as a convenience to avoid copying the array, the elements of the array should not be modified.

Returns:

a reference to the internal array storing the value of the objective function