org.apache.commons.math3.optim
Class PointValuePair

java.lang.Object
  org.apache.commons.math3.util.Pair<double[],Double>
      org.apache.commons.math3.optim.PointValuePair

All Implemented Interfaces:

Serializable

public class PointValuePair
extends Pair<double[],Double>
implements Serializable

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

Since:

3.0

Version:

$Id: PointValuePair.java 7721 2013-02-14 14:07:13Z CardosoP $

See Also:

PointVectorValuePair, MultivariateFunction, Serialized Form

Constructor Summary

PointValuePair(double[] point, double value)
Builds a point/objective function value pair.

PointValuePair(double[] point, double value, boolean copyArray)
Builds a point/objective function value pair.

Method Summary

double[]	getPoint() Gets the point.
double[]	getPointRef() Gets a reference to the point.

Methods inherited from class org.apache.commons.math3.util.Pair

equals, getFirst, getKey, getSecond, getValue, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

PointValuePair

public PointValuePair(double[] point,
                      double value)

Builds a point/objective function value pair.

Parameters:

point - Point coordinates. This instance will store a copy of the array, not the array passed as argument.

value - Value of the objective function at the point.

PointValuePair

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

Builds a point/objective function value pair.

Parameters:

point - Point coordinates.

value - Value of the objective function at the point.

copyArray - if true, the input array will be copied, otherwise it will be referenced.

Method Detail

getPoint

public double[] getPoint()

Gets the point.

Returns:

a copy of the stored point.

getPointRef

public double[] getPointRef()

Gets a reference to the point.

Returns:

a reference to the internal array storing the point.