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

Author:

The AIDA team @ SLAC.

Source Code:

ChiSquaredFitMethod.java

Field Summary

Fields inherited from interface hep.aida.ext.IFitMethod

BINNED_FIT, UNBINNED_FIT

Constructor Summary

ChiSquaredFitMethod()

Method Summary

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

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

Constructor Detail

ChiSquaredFitMethod

public ChiSquaredFitMethod()

Method Detail

evaluate

public double evaluate(hep.aida.dev.IDevFitDataIterator dataIter,
                       hep.aida.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(hep.aida.dev.IDevFitDataIterator dataIter,
                                 hep.aida.IFunction function)

Description copied from interface: IFitMethod

Evaluate the the sum contribution to the Objective Function value.

evaluateGradientSumElement

public double[] evaluateGradientSumElement(hep.aida.dev.IDevFitDataIterator dataIter,
                                           hep.aida.IFunction function)

Description copied from interface: IFitMethod

Evaluate the the sum contribution to the Objective Function gradient.

evaluateGradient

public double[] evaluateGradient(int dimension,
                                 hep.aida.dev.IDevFitDataIterator dataIter,
                                 hep.aida.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