template<class DerivFunType, class ModelFunType, class DataType>
class ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >

BasicFCN class: base class for the objective functions used in the fits It has a reference to the data and th emodel function used in the fit.

It cannot be instantiated but constructed from the derived classes

Definition at line 40 of file BasicFCN.h.

Public Member Functions
virtual const DataType &	Data () const
	access to const reference to the data More...

std::shared_ptr< DataType >	DataPtr () const
	access to data pointer More...

virtual const IModelFunction &	ModelFunction () const
	access to const reference to the model function More...

std::shared_ptr< IModelFunction >	ModelFunctionPtr () const
	access to function pointer More...

Public Member Functions inherited from ROOT::Math::BasicFitMethodFunction< DerivFunType >
	BasicFitMethodFunction (int dim, int npoint)

virtual	~BasicFitMethodFunction ()
	Virtual Destructor (no operations) More...

virtual double	DataElement (const double x, unsigned int i, double g=0) const=0
	method returning the data i-th contribution to the fit objective function For example the residual for the least square functions or the pdf element for the likelihood functions. More...

virtual unsigned int	NCalls () const
	return the total number of function calls (overrided if needed) More...

virtual unsigned int	NDim () const
	Number of dimension (parameters) . More...

virtual unsigned int	NPoints () const
	return the number of data points used in evaluating the function More...

virtual void	ResetNCalls ()
	reset number of function calls More...

virtual Type_t	Type () const
	return the type of method, override if needed More...

virtual void	UpdateNCalls () const
	update number of calls More...

Protected Types
typedef BaseObjFunction::BaseFunction	BaseFunction

typedef ::ROOT::Math::BasicFitMethodFunction< DerivFunType >	BaseObjFunction

typedef ::ROOT::Math::IParamMultiFunctionTempl< T >	IModelFunction

typedef ModelFunType::BackendType	T

Protected Member Functions
	BasicFCN (const std::shared_ptr< DataType > &data, const std::shared_ptr< IModelFunction > &func)
	Constructor from data set and model function. More...

virtual	~BasicFCN ()
	Destructor (no operations) More...

void	SetData (const std::shared_ptr< DataType > &data)
	Set the data pointer. More...

void	SetModelFunction (const std::shared_ptr< IModelFunction > &func)
	Set the function pointer. More...

Protected Attributes
std::shared_ptr< DataType >	fData

std::shared_ptr< IModelFunction >	fFunc

Additional Inherited Members
Public Types inherited from ROOT::Math::BasicFitMethodFunction< DerivFunType >
typedef FunctionType::BaseFunc	BaseFunction

enum	Type_t
	enumeration specyfing the possible fit method types More...

#include <Fit/BasicFCN.h>

Inheritance diagram for ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >:

[legend]

Member Typedef Documentation

◆ BaseFunction

template<class DerivFunType , class ModelFunType , class DataType >

typedef BaseObjFunction::BaseFunction ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::BaseFunction

protected

Definition at line 47 of file BasicFCN.h.

◆ BaseObjFunction

template<class DerivFunType , class ModelFunType , class DataType >

typedef ::ROOT::Math::BasicFitMethodFunction<DerivFunType> ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::BaseObjFunction

protected

Definition at line 46 of file BasicFCN.h.

◆ IModelFunction

template<class DerivFunType , class ModelFunType , class DataType >

typedef ::ROOT::Math::IParamMultiFunctionTempl<T> ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::IModelFunction

protected

Definition at line 49 of file BasicFCN.h.

◆ T

template<class DerivFunType , class ModelFunType , class DataType >

typedef ModelFunType::BackendType ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::T

protected

Definition at line 44 of file BasicFCN.h.

Constructor & Destructor Documentation

◆ BasicFCN()

template<class DerivFunType , class ModelFunType , class DataType >

ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::BasicFCN	(	const std::shared_ptr< DataType > &	data,
		const std::shared_ptr< IModelFunction > &	func
	)

inlineprotected

Constructor from data set and model function.

Definition at line 54 of file BasicFCN.h.

◆ ~BasicFCN()

template<class DerivFunType , class ModelFunType , class DataType >

virtual ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::~BasicFCN ( )

inlineprotectedvirtual

Destructor (no operations)

Definition at line 65 of file BasicFCN.h.

Member Function Documentation

◆ Data()

template<class DerivFunType , class ModelFunType , class DataType >

virtual const DataType & ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::Data ( ) const

inlinevirtual

access to const reference to the data

Definition at line 71 of file BasicFCN.h.

◆ DataPtr()

template<class DerivFunType , class ModelFunType , class DataType >

std::shared_ptr< DataType > ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::DataPtr ( ) const

inline

access to data pointer

Definition at line 74 of file BasicFCN.h.

◆ ModelFunction()

template<class DerivFunType , class ModelFunType , class DataType >

virtual const IModelFunction & ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::ModelFunction ( ) const

inlinevirtual

access to const reference to the model function

Definition at line 77 of file BasicFCN.h.

◆ ModelFunctionPtr()

template<class DerivFunType , class ModelFunType , class DataType >

std::shared_ptr< IModelFunction > ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::ModelFunctionPtr ( ) const

inline

access to function pointer

Definition at line 80 of file BasicFCN.h.

◆ SetData()

template<class DerivFunType , class ModelFunType , class DataType >

void ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::SetData ( const std::shared_ptr< DataType > & data )

inlineprotected

Set the data pointer.

Definition at line 88 of file BasicFCN.h.

◆ SetModelFunction()

template<class DerivFunType , class ModelFunType , class DataType >

void ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::SetModelFunction ( const std::shared_ptr< IModelFunction > & func )

inlineprotected

Set the function pointer.

Definition at line 91 of file BasicFCN.h.

Member Data Documentation

◆ fData

template<class DerivFunType , class ModelFunType , class DataType >

std::shared_ptr<DataType> ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::fData

protected

Definition at line 94 of file BasicFCN.h.

◆ fFunc

template<class DerivFunType , class ModelFunType , class DataType >

std::shared_ptr<IModelFunction> ROOT::Fit::BasicFCN< DerivFunType, ModelFunType, DataType >::fFunc

protected

Definition at line 95 of file BasicFCN.h.

The documentation for this class was generated from the following file:

math/mathcore/inc/Fit/BasicFCN.h

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Member Typedef Documentation

◆ BaseFunction

◆ BaseObjFunction

◆ IModelFunction

◆ T

Constructor & Destructor Documentation

◆ BasicFCN()

◆ ~BasicFCN()

Member Function Documentation

◆ Data()

◆ DataPtr()

◆ ModelFunction()

◆ ModelFunctionPtr()

◆ SetData()

◆ SetModelFunction()

Member Data Documentation

◆ fData

◆ fFunc