gov.sandia.cognition.learning.algorithm.minimization.line.interpolator

Class LineBracketInterpolatorParabola

java.lang.Object

gov.sandia.cognition.util.AbstractCloneableSerializable

gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.AbstractLineBracketInterpolator<EvaluatorType>

gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.AbstractLineBracketInterpolatorPolynomial<Evaluator<java.lang.Double,java.lang.Double>>

gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.LineBracketInterpolatorParabola

All Implemented Interfaces:

LineBracketInterpolator<Evaluator<java.lang.Double,java.lang.Double>>, CloneableSerializable, java.io.Serializable, java.lang.Cloneable

public class LineBracketInterpolatorParabola
extends AbstractLineBracketInterpolatorPolynomial<Evaluator<java.lang.Double,java.lang.Double>>

Interpolates using a parabola based on three points without slope information.

Since:

2.1

Author:

Kevin R. Dixon

See Also:

Serialized Form

Field Summary

Fields inherited from class gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.AbstractLineBracketInterpolator

DEFAULT_TOLERANCE

Constructor Summary

Constructors

Constructor and Description
LineBracketInterpolatorParabola() Creates a new instance of LineBracketInterpolatorParabola

Method Summary

Modifier and Type	Method and Description
PolynomialFunction.ClosedForm	computePolynomial(LineBracket bracket, Evaluator<java.lang.Double,java.lang.Double> function) Fits the interpolating polynomial to the given LineBracket
boolean	hasSufficientPoints(LineBracket bracket) Parabolic interpolation needs three noncollinear points to fit a parabola to them.

Methods inherited from class gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.AbstractLineBracketInterpolatorPolynomial

findMinimum

Methods inherited from class gov.sandia.cognition.learning.algorithm.minimization.line.interpolator.AbstractLineBracketInterpolator

getTolerance, setTolerance

Methods inherited from class gov.sandia.cognition.util.AbstractCloneableSerializable

clone

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.sandia.cognition.util.CloneableSerializable

clone

Constructor Detail

LineBracketInterpolatorParabola

public LineBracketInterpolatorParabola()

Creates a new instance of LineBracketInterpolatorParabola

Method Detail

hasSufficientPoints

public boolean hasSufficientPoints(LineBracket bracket)

Parabolic interpolation needs three noncollinear points to fit a parabola to them. So, we need the bounds and one other (noncollinear) point. This parabola does not use derivative information.

Parameters:

bracket - LineBracket to consider

Returns:

True if we have sufficient points, false otherwise

computePolynomial

public PolynomialFunction.ClosedForm computePolynomial(LineBracket bracket,
                                                       Evaluator<java.lang.Double,java.lang.Double> function)

Description copied from class: AbstractLineBracketInterpolatorPolynomial

Fits the interpolating polynomial to the given LineBracket

Specified by:

computePolynomial in class AbstractLineBracketInterpolatorPolynomial<Evaluator<java.lang.Double,java.lang.Double>>

Parameters:

bracket - LineBracket to consider

function - Function to use to fill in missing information

Returns:

Interpolating polynomial