repicea.stats.integral

Class NumericalIntegrationMethod

java.lang.Object

repicea.stats.integral.NumericalIntegrationMethod

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

CompositeSimpsonRule, GaussQuadrature, TrapezoidalRule

public abstract class NumericalIntegrationMethod
extends java.lang.Object
implements java.io.Serializable

The NumericalIntegrationMethod class is the basic class for all numerical integration, such as Gauss quadrature, trapezoidal rule, Simpson's composite rule, etc...

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.List<java.lang.Double>	rescalingFactors
protected java.util.List<java.lang.Double>	weights
protected java.util.List<java.lang.Double>	xValues

Constructor Summary

Constructors

Constructor and Description
NumericalIntegrationMethod()

Method Summary

Modifier and Type	Method and Description
double	getLowerBound() This method returns the lower bound of the numerical integration.
abstract java.util.List<java.lang.Double>	getRescalingFactors() This method returns the rescaling factor for the numerical integration.
double	getUpperBound() This method returns the upper bound of the numerical integration.
abstract java.util.List<java.lang.Double>	getWeights() This method returns the weights associated to the numerical integration.
abstract java.util.List<java.lang.Double>	getXValues() This method returns the x values for the numerical integration.
void	setLowerBound(double lowerBound) This method sets the lower bound of the numerical integration.
void	setUpperBound(double upperBound) This method sets the upper bound of the numerical integration.
protected void	setXValuesFromListOfPoints(java.util.List<java.lang.Double> points) This method sets the upper and lower bounds from a list of Double instances.

Methods inherited from class java.lang.Object

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

Field Detail

xValues

protected java.util.List<java.lang.Double> xValues

weights

protected java.util.List<java.lang.Double> weights

rescalingFactors

protected java.util.List<java.lang.Double> rescalingFactors

Constructor Detail

NumericalIntegrationMethod

public NumericalIntegrationMethod()

Method Detail

setXValuesFromListOfPoints

protected void setXValuesFromListOfPoints(java.util.List<java.lang.Double> points)

This method sets the upper and lower bounds from a list of Double instances. It also sets the xValues member and sorts it in ascending order. NOTE: replicates are omitted in the xValues member. If points = {1d, 1d, 2d, 3d}, xValues will be set to {1d, 2d, 3d}.

Parameters:

points - a List of Double instances

setUpperBound

public void setUpperBound(double upperBound)

This method sets the upper bound of the numerical integration. Setting the upper bound to Double.NaN (default value) means plus infinity. IMPORTANT: changing the upper bound resets the arrays that contain the x values, the weights, and the rescaling factors.

Parameters:

upperBound -

setLowerBound

public void setLowerBound(double lowerBound)

This method sets the lower bound of the numerical integration. Setting the lower bound to Double.NaN (default value) means minus infinity. IMPORTANT: changing the upper bound resets the arrays that contain the x values, the weights, and the rescaling factors.

Parameters:

lowerBound - a double

getWeights

public abstract java.util.List<java.lang.Double> getWeights()

This method returns the weights associated to the numerical integration.

Returns:

a List of Double instances

getXValues

public abstract java.util.List<java.lang.Double> getXValues()

This method returns the x values for the numerical integration.

Returns:

a List of Double instances

getRescalingFactors

public abstract java.util.List<java.lang.Double> getRescalingFactors()

This method returns the rescaling factor for the numerical integration.

Returns:

a List of Double instances

getLowerBound

public double getLowerBound()

This method returns the lower bound of the numerical integration.

Returns:

a double or Double.NaN in case of minus infinity

getUpperBound

public double getUpperBound()

This method returns the upper bound of the numerical integration.

Returns:

a double or Double.NaN in case of plus infinity