TFumiliMinimizer Class Reference

#include <TFumiliMinimizer.h>

Inheritance diagram for TFumiliMinimizer:

List of all members.

Public Member Functions
	TFumiliMinimizer (int dummy=0)
	~TFumiliMinimizer ()
virtual void	SetFunction (const ROOT::Math::IMultiGenFunction &func)
	set the function to minimize
virtual void	SetFunction (const ROOT::Math::IMultiGradFunction &func)
	set the function to minimize
virtual bool	SetVariable (unsigned int ivar, const std::string &name, double val, double step)
	set free variable
virtual bool	SetLimitedVariable (unsigned int ivar, const std::string &name, double val, double step, double, double)
	set upper/lower limited variable (override if minimizer supports them )
virtual bool	SetFixedVariable (unsigned int, const std::string &, double)
	set fixed variable (override if minimizer supports them )
virtual bool	SetVariableValue (unsigned int ivar, double val)
	set the value of an existing variable
virtual bool	Minimize ()
	method to perform the minimization
virtual double	MinValue () const
	return minimum function value
virtual double	Edm () const
	return expected distance reached from the minimum
virtual const double *	X () const
	return pointer to X values at the minimum
virtual const double *	MinGradient () const
	return pointer to gradient values at the minimum
virtual unsigned int	NCalls () const
	number of function calls to reach the minimum
virtual unsigned int	NDim () const
virtual unsigned int	NFree () const
virtual bool	ProvidesError () const
	minimizer provides error and error matrix
virtual const double *	Errors () const
	return errors at the minimum
virtual double	CovMatrix (unsigned int i, unsigned int j) const
virtual int	CovMatrixStatus () const
	TFumiliMinimizer (int dummy=0)
	~TFumiliMinimizer ()
virtual void	SetFunction (const ROOT::Math::IMultiGenFunction &func)
	set the function to minimize
virtual void	SetFunction (const ROOT::Math::IMultiGradFunction &func)
	set the function to minimize
virtual bool	SetVariable (unsigned int ivar, const std::string &name, double val, double step)
	set free variable
virtual bool	SetLimitedVariable (unsigned int ivar, const std::string &name, double val, double step, double, double)
	set upper/lower limited variable (override if minimizer supports them )
virtual bool	SetFixedVariable (unsigned int, const std::string &, double)
	set fixed variable (override if minimizer supports them )
virtual bool	SetVariableValue (unsigned int ivar, double val)
	set the value of an existing variable
virtual bool	Minimize ()
	method to perform the minimization
virtual double	MinValue () const
	return minimum function value
virtual double	Edm () const
	return expected distance reached from the minimum
virtual const double *	X () const
	return pointer to X values at the minimum
virtual const double *	MinGradient () const
	return pointer to gradient values at the minimum
virtual unsigned int	NCalls () const
	number of function calls to reach the minimum
virtual unsigned int	NDim () const
virtual unsigned int	NFree () const
virtual bool	ProvidesError () const
	minimizer provides error and error matrix
virtual const double *	Errors () const
	return errors at the minimum
virtual double	CovMatrix (unsigned int i, unsigned int j) const
virtual int	CovMatrixStatus () const
Static Protected Member Functions
static void	Fcn (int &, double *, double &f, double *, int)
	implementation of FCN for Fumili
static double	EvaluateFCN (const double *x, double *g)
	static function implementing the evaluation of the FCN (it uses static instance fgFumili)
static void	Fcn (int &, double *, double &f, double *, int)
	implementation of FCN for Fumili
static double	EvaluateFCN (const double *x, double *g)
	static function implementing the evaluation of the FCN (it uses static instance fgFumili)
Private Member Functions
	TFumiliMinimizer (const TFumiliMinimizer &)
TFumiliMinimizer &	operator= (const TFumiliMinimizer &rhs)
	TFumiliMinimizer (const TFumiliMinimizer &)
TFumiliMinimizer &	operator= (const TFumiliMinimizer &rhs)
Private Attributes
unsigned int	fDim
unsigned int	fNFree
double	fMinVal
double	fEdm
std::vector< double >	fParams
std::vector< double >	fErrors
std::vector< double >	fCovar
TFumili *	fFumili
std::vector< double >	fParams
std::vector< double >	fErrors
std::vector< double >	fCovar
TFumili *	fFumili
Static Private Attributes
static ROOT::Math::FitMethodFunction *	fgFunc
static ROOT::Math::FitMethodGradFunction *	fgGradFunc
static TFumili *	fgFumili
static ROOT::Math::FitMethodFunction *	fgFunc
static ROOT::Math::FitMethodGradFunction *	fgGradFunc
static TFumili *	fgFumili

---

Detailed Description

TFumiliMinimizer class: minimizer implementation based on TFumili.

Definition at line 47 of file TFumiliMinimizer.h.

---

Constructor & Destructor Documentation

TFumiliMinimizer::TFumiliMinimizer

(

int

dummy = 0

)

Default constructor (an argument is needed by plug-in manager)

TFumiliMinimizer::~TFumiliMinimizer

(

)

Destructor (no operations)

Definition at line 165 of file TFumiliMinimizer.cxx.

References fFumili.

TFumiliMinimizer::TFumiliMinimizer

(

const TFumiliMinimizer &

)

[private]

Copy constructor

Definition at line 171 of file TFumiliMinimizer.cxx.

TFumiliMinimizer::TFumiliMinimizer

(

int

dummy = 0

)

Default constructor (an argument is needed by plug-in manager)

TFumiliMinimizer::~TFumiliMinimizer

(

)

Destructor (no operations)

TFumiliMinimizer::TFumiliMinimizer

(

const TFumiliMinimizer &

)

[private]

Copy constructor

---

Member Function Documentation

TFumiliMinimizer & TFumiliMinimizer::operator=

(

const TFumiliMinimizer &

rhs

)

[private]

Assignment operator

Definition at line 177 of file TFumiliMinimizer.cxx.

void TFumiliMinimizer::SetFunction

(

const ROOT::Math::IMultiGenFunction &

func

)

[virtual]

set the function to minimize

Implements ROOT::Math::Minimizer.

Definition at line 186 of file TFumiliMinimizer.cxx.

References Error, Fcn(), fDim, fFumili, fgFunc, fgGradFunc, func(), ROOT::Math::BasicFitMethodFunction< FunctionType >::kLeastSquare, ROOT::Math::BasicFitMethodFunction< FunctionType >::kLogLikelihood, TVirtualFitter::SetFCN(), TFumili::SetParNumber(), and ROOT::Math::BasicFitMethodFunction< FunctionType >::Type().

void TFumiliMinimizer::SetFunction

(

const ROOT::Math::IMultiGradFunction &

func

)

[virtual]

set the function to minimize

Reimplemented from ROOT::Math::Minimizer.

Definition at line 218 of file TFumiliMinimizer.cxx.

References Error, Fcn(), fDim, fFumili, fgFunc, fgGradFunc, func(), TVirtualFitter::SetFCN(), and TFumili::SetParNumber().

bool TFumiliMinimizer::SetVariable	(	unsigned int	ivar,
		const std::string &	name,
		double	val,
		double	step
	)			[virtual]

set free variable

Implements ROOT::Math::Minimizer.

Definition at line 412 of file TFumiliMinimizer.cxx.

References Error, fFumili, and TFumili::SetParameter().

bool TFumiliMinimizer::SetLimitedVariable	(	unsigned int	ivar,
		const std::string &	name,
		double	val,
		double	step,
		double	,
		double
	)			[virtual]

set upper/lower limited variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

Definition at line 430 of file TFumiliMinimizer.cxx.

References Error, fFumili, and TFumili::SetParameter().

bool TFumiliMinimizer::SetFixedVariable	(	unsigned	int,
		const std::string &	,
		double
	)			[virtual]

set fixed variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

Definition at line 457 of file TFumiliMinimizer.cxx.

References Error, fFumili, TFumili::FixParameter(), and TFumili::SetParameter().

bool TFumiliMinimizer::SetVariableValue	(	unsigned int	ivar,
		double	val
	)			[virtual]

set the value of an existing variable

Reimplemented from ROOT::Math::Minimizer.

Definition at line 479 of file TFumiliMinimizer.cxx.

References Error, fFumili, TFumili::GetParameter(), TFumili::GetParName(), name, and TFumili::SetParameter().

bool TFumiliMinimizer::Minimize

(

)

[virtual]

method to perform the minimization

Implements ROOT::Math::Minimizer.

Definition at line 505 of file TFumiliMinimizer.cxx.

References Error, TFumili::ExecuteCommand(), fCovar, fDim, fEdm, fErrors, fFumili, fgFumili, fMinVal, fNFree, fParams, ROOT::Math::Minimizer::fStatus, TFumili::GetCovarianceMatrix(), TFumili::GetNumberFreeParameters(), TFumili::GetParameter(), TFumili::GetParError(), TFumili::GetStats(), TFumili::IsFixed(), j, l, ROOT::Math::Minimizer::MaxFunctionCalls(), ROOT::Math::Minimizer::PrintLevel(), TFumili::PrintResults(), and ROOT::Math::Minimizer::Tolerance().

virtual double TFumiliMinimizer::MinValue

(

)

const [inline, virtual]

return minimum function value

Implements ROOT::Math::Minimizer.

Definition at line 106 of file TFumiliMinimizer.h.

References fMinVal.

virtual double TFumiliMinimizer::Edm

(

)

const [inline, virtual]

return expected distance reached from the minimum

Implements ROOT::Math::Minimizer.

Definition at line 109 of file TFumiliMinimizer.h.

References fEdm.

virtual const double* TFumiliMinimizer::X

(

)

const [inline, virtual]

return pointer to X values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 112 of file TFumiliMinimizer.h.

References fParams.

virtual const double* TFumiliMinimizer::MinGradient

(

)

const [inline, virtual]

return pointer to gradient values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 115 of file TFumiliMinimizer.h.

virtual unsigned int TFumiliMinimizer::NCalls

(

)

const [inline, virtual]

number of function calls to reach the minimum

Implements ROOT::Math::Minimizer.

Definition at line 118 of file TFumiliMinimizer.h.

virtual unsigned int TFumiliMinimizer::NDim

(

)

const [inline, virtual]

this is <= Function().NDim() which is the total number of variables (free+ constrained ones)

Implements ROOT::Math::Minimizer.

Definition at line 122 of file TFumiliMinimizer.h.

References fDim.

virtual unsigned int TFumiliMinimizer::NFree

(

)

const [inline, virtual]

number of free variables (real dimension of the problem) this is <= Function().NDim() which is the total

Implements ROOT::Math::Minimizer.

Definition at line 126 of file TFumiliMinimizer.h.

References fNFree.

virtual bool TFumiliMinimizer::ProvidesError

(

)

const [inline, virtual]

minimizer provides error and error matrix

Implements ROOT::Math::Minimizer.

Definition at line 129 of file TFumiliMinimizer.h.

virtual const double* TFumiliMinimizer::Errors

(

)

const [inline, virtual]

return errors at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 132 of file TFumiliMinimizer.h.

References fErrors.

virtual double TFumiliMinimizer::CovMatrix	(	unsigned int	i,
		unsigned int	j
	)			const [inline, virtual]

return covariance matrices elements if the variable is fixed the matrix is zero The ordering of the variables is the same as in errors

Implements ROOT::Math::Minimizer.

Definition at line 138 of file TFumiliMinimizer.h.

References fCovar, and fDim.

virtual int TFumiliMinimizer::CovMatrixStatus

(

)

const [inline, virtual]

return status of covariance matrix using Minuit convention {0 not calculated 1 approximated 2 made pos def , 3 accurate} Minimizer who implements covariance matrix calculation will re-implement the method

Reimplemented from ROOT::Math::Minimizer.

Definition at line 145 of file TFumiliMinimizer.h.

References fCovar, and ROOT::Math::Minimizer::fStatus.

void TFumiliMinimizer::Fcn	(	int &	,
		double *	,
		double &	f,
		double *	,
		int
	)			[static, protected]

implementation of FCN for Fumili

Definition at line 239 of file TFumiliMinimizer.cxx.

References EvaluateFCN().

Referenced by SetFunction().

double TFumiliMinimizer::EvaluateFCN	(	const double *	x,
		double *	g
	)			[static, protected]

static function implementing the evaluation of the FCN (it uses static instance fgFumili)

Definition at line 258 of file TFumiliMinimizer.cxx.

References ROOT::Math::BasicFitMethodFunction< FunctionType >::DataElement(), Error, fgFumili, fgFunc, fgGradFunc, TFumili::GetPL0(), TFumili::GetZ(), j, k, ROOT::Math::BasicFitMethodFunction< FunctionType >::kLeastSquare, ROOT::Math::BasicFitMethodFunction< FunctionType >::kLogLikelihood, l, ndata, ROOT::Math::BasicFitMethodFunction< FunctionType >::NDim(), ROOT::Math::BasicFitMethodFunction< FunctionType >::NPoints(), ROOT::Math::BasicFitMethodFunction< FunctionType >::Type(), and ROOT::Math::BasicFitMethodFunction< FunctionType >::UpdateNCalls().

Referenced by Fcn().

TFumiliMinimizer& TFumiliMinimizer::operator=

(

const TFumiliMinimizer &

rhs

)

[private]

Assignment operator

virtual void TFumiliMinimizer::SetFunction

(

const ROOT::Math::IMultiGenFunction &

func

)

[virtual]

set the function to minimize

Implements ROOT::Math::Minimizer.

virtual void TFumiliMinimizer::SetFunction

(

const ROOT::Math::IMultiGradFunction &

func

)

[virtual]

set the function to minimize

Reimplemented from ROOT::Math::Minimizer.

virtual bool TFumiliMinimizer::SetVariable	(	unsigned int	ivar,
		const std::string &	name,
		double	val,
		double	step
	)			[virtual]

set free variable

Implements ROOT::Math::Minimizer.

virtual bool TFumiliMinimizer::SetLimitedVariable	(	unsigned int	ivar,
		const std::string &	name,
		double	val,
		double	step,
		double	,
		double
	)			[virtual]

set upper/lower limited variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

virtual bool TFumiliMinimizer::SetFixedVariable	(	unsigned	int,
		const std::string &	,
		double
	)			[virtual]

set fixed variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

virtual bool TFumiliMinimizer::SetVariableValue	(	unsigned int	ivar,
		double	val
	)			[virtual]

set the value of an existing variable

Reimplemented from ROOT::Math::Minimizer.

virtual bool TFumiliMinimizer::Minimize

(

)

[virtual]

method to perform the minimization

Implements ROOT::Math::Minimizer.

virtual double TFumiliMinimizer::MinValue

(

)

const [inline, virtual]

return minimum function value

Implements ROOT::Math::Minimizer.

Definition at line 106 of file TFumiliMinimizer.h.

References fMinVal.

virtual double TFumiliMinimizer::Edm

(

)

const [inline, virtual]

return expected distance reached from the minimum

Implements ROOT::Math::Minimizer.

Definition at line 109 of file TFumiliMinimizer.h.

References fEdm.

virtual const double* TFumiliMinimizer::X

(

)

const [inline, virtual]

return pointer to X values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 112 of file TFumiliMinimizer.h.

References fParams.

virtual const double* TFumiliMinimizer::MinGradient

(

)

const [inline, virtual]

return pointer to gradient values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 115 of file TFumiliMinimizer.h.

virtual unsigned int TFumiliMinimizer::NCalls

(

)

const [inline, virtual]

number of function calls to reach the minimum

Implements ROOT::Math::Minimizer.

Definition at line 118 of file TFumiliMinimizer.h.

virtual unsigned int TFumiliMinimizer::NDim

(

)

const [inline, virtual]

this is <= Function().NDim() which is the total number of variables (free+ constrained ones)

Implements ROOT::Math::Minimizer.

Definition at line 122 of file TFumiliMinimizer.h.

References fDim.

virtual unsigned int TFumiliMinimizer::NFree

(

)

const [inline, virtual]

number of free variables (real dimension of the problem) this is <= Function().NDim() which is the total

Implements ROOT::Math::Minimizer.

Definition at line 126 of file TFumiliMinimizer.h.

References fNFree.

virtual bool TFumiliMinimizer::ProvidesError

(

)

const [inline, virtual]

minimizer provides error and error matrix

Implements ROOT::Math::Minimizer.

Definition at line 129 of file TFumiliMinimizer.h.

virtual const double* TFumiliMinimizer::Errors

(

)

const [inline, virtual]

return errors at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 132 of file TFumiliMinimizer.h.

References fErrors.

virtual double TFumiliMinimizer::CovMatrix	(	unsigned int	i,
		unsigned int	j
	)			const [inline, virtual]

return covariance matrices elements if the variable is fixed the matrix is zero The ordering of the variables is the same as in errors

Implements ROOT::Math::Minimizer.

Definition at line 138 of file TFumiliMinimizer.h.

References fCovar, and fDim.

virtual int TFumiliMinimizer::CovMatrixStatus

(

)

const [inline, virtual]

return status of covariance matrix using Minuit convention {0 not calculated 1 approximated 2 made pos def , 3 accurate} Minimizer who implements covariance matrix calculation will re-implement the method

Reimplemented from ROOT::Math::Minimizer.

Definition at line 145 of file TFumiliMinimizer.h.

References fCovar, and ROOT::Math::Minimizer::fStatus.

static void TFumiliMinimizer::Fcn	(	int &	,
		double *	,
		double &	f,
		double *	,
		int
	)			[static, protected]

implementation of FCN for Fumili

static double TFumiliMinimizer::EvaluateFCN	(	const double *	x,
		double *	g
	)			[static, protected]

static function implementing the evaluation of the FCN (it uses static instance fgFumili)

---

Member Data Documentation

unsigned int TFumiliMinimizer::fDim [private]

Definition at line 167 of file TFumiliMinimizer.h.

Referenced by CovMatrix(), Minimize(), NDim(), and SetFunction().

unsigned int TFumiliMinimizer::fNFree [private]

Definition at line 168 of file TFumiliMinimizer.h.

Referenced by Minimize(), and NFree().

double TFumiliMinimizer::fMinVal [private]

Definition at line 169 of file TFumiliMinimizer.h.

Referenced by Minimize(), and MinValue().

double TFumiliMinimizer::fEdm [private]

Definition at line 170 of file TFumiliMinimizer.h.

Referenced by Edm(), and Minimize().

std::vector<double> TFumiliMinimizer::fParams [private]

Definition at line 171 of file TFumiliMinimizer.h.

Referenced by Minimize(), and X().

std::vector<double> TFumiliMinimizer::fErrors [private]

Definition at line 172 of file TFumiliMinimizer.h.

Referenced by Errors(), and Minimize().

std::vector<double> TFumiliMinimizer::fCovar [private]

Definition at line 173 of file TFumiliMinimizer.h.

Referenced by CovMatrix(), CovMatrixStatus(), and Minimize().

TFumili* TFumiliMinimizer::fFumili [private]

Definition at line 175 of file TFumiliMinimizer.h.

Referenced by Minimize(), SetFixedVariable(), SetFunction(), SetLimitedVariable(), SetVariable(), SetVariableValue(), and ~TFumiliMinimizer().

ROOT::Math::FitMethodFunction * TFumiliMinimizer::fgFunc [static, private]

Definition at line 179 of file TFumiliMinimizer.h.

Referenced by EvaluateFCN(), and SetFunction().

ROOT::Math::FitMethodGradFunction * TFumiliMinimizer::fgGradFunc [static, private]

Definition at line 180 of file TFumiliMinimizer.h.

Referenced by EvaluateFCN(), and SetFunction().

TFumili * TFumiliMinimizer::fgFumili [static, private]

Definition at line 182 of file TFumiliMinimizer.h.

Referenced by EvaluateFCN(), and Minimize().

std::vector<double> TFumiliMinimizer::fParams [private]

Definition at line 171 of file TFumiliMinimizer.h.

std::vector<double> TFumiliMinimizer::fErrors [private]

Definition at line 172 of file TFumiliMinimizer.h.

std::vector<double> TFumiliMinimizer::fCovar [private]

Definition at line 173 of file TFumiliMinimizer.h.

TFumili* TFumiliMinimizer::fFumili [private]

Definition at line 175 of file TFumiliMinimizer.h.

ROOT::Math::FitMethodFunction* TFumiliMinimizer::fgFunc [static, private]

Definition at line 179 of file TFumiliMinimizer.h.

ROOT::Math::FitMethodGradFunction* TFumiliMinimizer::fgGradFunc [static, private]

Definition at line 180 of file TFumiliMinimizer.h.

TFumili* TFumiliMinimizer::fgFumili [static, private]

Definition at line 182 of file TFumiliMinimizer.h.

---

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

• include/TFumiliMinimizer.h
• math/fumili/inc/TFumiliMinimizer.h
• math/fumili/src/TFumiliMinimizer.cxx

---