Wrapper class to FCNBase interface used internally by Minuit.

Apply conversion from calling the function from a Minuit Vector (MnAlgebraicVector) to a std::vector for the function coordinates. The class counts also the number of function calls. By default counter strart from zero, but a different value might be given if the class is instantiated later on, for example for a set of different minimizaitons Normally the derived class MnUserFCN should be instantiated with performs in addition the transformatiopn internal-> external parameters

Definition at line 30 of file MnFcn.h.

Public Member Functions
	MnFcn (const FCNBase &fcn, int ncall=0)
	constructor of

virtual	~MnFcn ()

double	ErrorDef () const

const FCNBase &	Fcn () const

unsigned int	NumOfCalls () const

virtual double	operator() (const MnAlgebraicVector &) const

double	Up () const

Protected Attributes
int	fNumCall

Private Attributes
const FCNBase &	fFCN

#include <Minuit2/MnFcn.h>

Inheritance diagram for ROOT::Minuit2::MnFcn:

[legend]

Constructor & Destructor Documentation

◆ MnFcn()

ROOT::Minuit2::MnFcn::MnFcn	(	const FCNBase &	fcn,
		int	ncall = `0`
	)

inlineexplicit

constructor of

Definition at line 34 of file MnFcn.h.

◆ ~MnFcn()

ROOT::Minuit2::MnFcn::~MnFcn ( )

virtual

Definition at line 18 of file MnFcn.cxx.

Member Function Documentation

◆ ErrorDef()

double ROOT::Minuit2::MnFcn::ErrorDef ( ) const

Definition at line 34 of file MnFcn.cxx.

◆ Fcn()

const FCNBase & ROOT::Minuit2::MnFcn::Fcn ( ) const

inline

Definition at line 47 of file MnFcn.h.

◆ NumOfCalls()

unsigned int ROOT::Minuit2::MnFcn::NumOfCalls ( ) const

inline

Definition at line 39 of file MnFcn.h.

◆ operator()()

double ROOT::Minuit2::MnFcn::operator() ( const MnAlgebraicVector & v ) const

virtual

Reimplemented in ROOT::Minuit2::MnUserFcn.

Definition at line 23 of file MnFcn.cxx.

◆ Up()

double ROOT::Minuit2::MnFcn::Up ( ) const

Definition at line 39 of file MnFcn.cxx.

Member Data Documentation

◆ fFCN

const FCNBase& ROOT::Minuit2::MnFcn::fFCN

private

Definition at line 50 of file MnFcn.h.

◆ fNumCall

int ROOT::Minuit2::MnFcn::fNumCall

mutableprotected

Definition at line 53 of file MnFcn.h.

Libraries for ROOT::Minuit2::MnFcn: