hep.aida.ref.fitter.fitmethod

Class ChiSquaredFitMethod

java.lang.Object

hep.aida.ref.fitter.fitmethod.AbstractFitMethod

hep.aida.ref.fitter.fitmethod.ChiSquaredFitMethod

All Implemented Interfaces:

IFitMethod

public class ChiSquaredFitMethod
extends AbstractFitMethod

Field Summary

Fields inherited from interface hep.aida.ext.IFitMethod

BINNED_FIT, UNBINNED_FIT

Constructor Summary

Constructors

Constructor and Description
ChiSquaredFitMethod()

Method Summary

Modifier and Type	Method and Description
double	evaluate(IDevFitDataIterator dataIter, IFunction function) Evaluate the Objective Function for a given data iterator and a given function.
double[]	evaluateGradient(int dimension, IDevFitDataIterator dataIter, IFunction function) Evaluate the gradient of the Objective Function.
double[]	evaluateGradientSumElement(IDevFitDataIterator dataIter, IFunction function) Evaluate the the sum contribution to the Objective Function gradient.
double	evaluateSumElement(IDevFitDataIterator dataIter, IFunction function) Evaluate the the sum contribution to the Objective Function value.

Methods inherited from class hep.aida.ref.fitter.fitmethod.AbstractFitMethod

clear, correlationObject, fitMethodNames, fitType, setCorrelationObject

Methods inherited from class java.lang.Object

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

Constructor Detail

ChiSquaredFitMethod

public ChiSquaredFitMethod()

Method Detail

evaluate

public double evaluate(IDevFitDataIterator dataIter,
                       IFunction function)

Description copied from interface: IFitMethod

Evaluate the Objective Function for a given data iterator and a given function.

Specified by:

evaluate in interface IFitMethod

Overrides:

evaluate in class AbstractFitMethod

evaluateSumElement

public double evaluateSumElement(IDevFitDataIterator dataIter,
                                 IFunction function)

Description copied from interface: IFitMethod

Evaluate the the sum contribution to the Objective Function value.

evaluateGradientSumElement

public double[] evaluateGradientSumElement(IDevFitDataIterator dataIter,
                                           IFunction function)

Description copied from interface: IFitMethod

Evaluate the the sum contribution to the Objective Function gradient.

evaluateGradient

public double[] evaluateGradient(int dimension,
                                 IDevFitDataIterator dataIter,
                                 IFunction function)

Description copied from interface: IFitMethod

Evaluate the gradient of the Objective Function.

Specified by:

evaluateGradient in interface IFitMethod

Overrides:

evaluateGradient in class AbstractFitMethod