TLinearMinimizer Class Reference

#include <TLinearMinimizer.h>

Inheritance diagram for TLinearMinimizer:


Public Member Functions
	TLinearMinimizer (int type=0)
	TLinearMinimizer (const char *type)
virtual	~TLinearMinimizer ()
virtual void	SetFunction (const ROOT::Math::IMultiGenFunction &func)
	set the fit model function
virtual void	SetFunction (const ROOT::Math::IMultiGradFunction &func)
	set the function to minimize
virtual bool	SetVariable (unsigned int, const std::string &, double, double)
	set free variable (dummy impl. )
virtual bool	SetFixedVariable (unsigned int, const std::string &, double)
	set fixed variable (override if minimizer supports them )
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
	return covariance matrix status
	TLinearMinimizer (int type=0)
	TLinearMinimizer (const char *type)
virtual	~TLinearMinimizer ()
virtual void	SetFunction (const ROOT::Math::IMultiGenFunction &func)
	set the fit model function
virtual void	SetFunction (const ROOT::Math::IMultiGradFunction &func)
	set the function to minimize
virtual bool	SetVariable (unsigned int, const std::string &, double, double)
	set free variable (dummy impl. )
virtual bool	SetFixedVariable (unsigned int, const std::string &, double)
	set fixed variable (override if minimizer supports them )
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
	return covariance matrix status
Private Member Functions
	TLinearMinimizer (const TLinearMinimizer &)
TLinearMinimizer &	operator= (const TLinearMinimizer &rhs)
	TLinearMinimizer (const TLinearMinimizer &)
TLinearMinimizer &	operator= (const TLinearMinimizer &rhs)
Private Attributes
bool	fRobust
unsigned int	fDim
unsigned int	fNFree
double	fMinVal
std::vector< double >	fParams
std::vector< double >	fErrors
std::vector< double >	fCovar
const ROOT::Math::IMultiGradFunction *	fObjFunc
TLinearFitter *	fFitter
std::vector< double >	fParams
std::vector< double >	fErrors
std::vector< double >	fCovar
const ROOT::Math::IMultiGradFunction *	fObjFunc
TLinearFitter *	fFitter

Detailed Description

TLinearMinimizer class: minimizer implementation based on TMinuit.

Definition at line 34 of file TLinearMinimizer.h.

Constructor & Destructor Documentation

TLinearMinimizer::TLinearMinimizer ( int type = 0 )

Default constructor

TLinearMinimizer::TLinearMinimizer ( const char * type )

Constructor from a char * (used by PM)

Definition at line 80 of file TLinearMinimizer.cxx.

References fRobust, int, and transform.

TLinearMinimizer::~TLinearMinimizer ( ) [virtual]

Destructor (no operations)

Definition at line 98 of file TLinearMinimizer.cxx.

References fFitter.

TLinearMinimizer::TLinearMinimizer ( const TLinearMinimizer & ) [private]

Copy constructor

Definition at line 104 of file TLinearMinimizer.cxx.

TLinearMinimizer::TLinearMinimizer ( int type = 0 )

Default constructor

TLinearMinimizer::TLinearMinimizer ( const char * type )

Constructor from a char * (used by PM)

virtual TLinearMinimizer::~TLinearMinimizer ( ) [virtual]

Destructor (no operations)

TLinearMinimizer::TLinearMinimizer ( const TLinearMinimizer & ) [private]

Copy constructor

Member Function Documentation

TLinearMinimizer & TLinearMinimizer::operator= ( const TLinearMinimizer & rhs ) [private]

Assignment operator

Definition at line 110 of file TLinearMinimizer.cxx.

void TLinearMinimizer::SetFunction ( const ROOT::Math::IMultiGenFunction & func ) [virtual]

set the fit model function

Implements ROOT::Math::Minimizer.

Definition at line 118 of file TLinearMinimizer.cxx.

References Error.

void TLinearMinimizer::SetFunction ( const ROOT::Math::IMultiGradFunction & func ) [virtual]

set the function to minimize

Reimplemented from ROOT::Math::Minimizer.

Definition at line 125 of file TLinearMinimizer.cxx.

References TObjArray::Add(), TLinearFitter::AddPoint(), data, Error, fDim, fFitter, fNFree, fObjFunc, fRobust, TROOT::GetListOfFunctions(), gROOT, i, NDim(), TCollection::Remove(), TLinearFitter::SetBasisFunctions(), TLinearFitter::StoreData(), u, x, and y.

virtual bool TLinearMinimizer::SetVariable	(	unsigned int	,
		const std::string &	,
		double	,
		double
	)			`[inline, virtual]`

set free variable (dummy impl. )

Implements ROOT::Math::Minimizer.

Definition at line 75 of file TLinearMinimizer.h.

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

set fixed variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

Definition at line 185 of file TLinearMinimizer.cxx.

References fFitter, and TLinearFitter::FixParameter().

bool TLinearMinimizer::Minimize ( ) [virtual]

method to perform the minimization

Implements ROOT::Math::Minimizer.

Definition at line 192 of file TLinearMinimizer.cxx.

References copy(), TLinearFitter::Eval(), TLinearFitter::EvalRobust(), fCovar, fDim, fErrors, fFitter, fMinVal, fObjFunc, fParams, fRobust, ROOT::Math::Minimizer::fStatus, TLinearFitter::GetCovarianceMatrix(), TLinearFitter::GetParameter(), TLinearFitter::GetParError(), h, i, ROOT::Math::Minimizer::PrintLevel(), ROOT::Math::Minimizer::Tolerance(), and Warning().

virtual double TLinearMinimizer::MinValue ( ) const [inline, virtual]

return minimum function value

Implements ROOT::Math::Minimizer.

Definition at line 84 of file TLinearMinimizer.h.

References fMinVal.

virtual double TLinearMinimizer::Edm ( ) const [inline, virtual]

return expected distance reached from the minimum

Implements ROOT::Math::Minimizer.

Definition at line 87 of file TLinearMinimizer.h.

virtual const double* TLinearMinimizer::X ( ) const [inline, virtual]

return pointer to X values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 90 of file TLinearMinimizer.h.

References fParams.

virtual const double* TLinearMinimizer::MinGradient ( ) const [inline, virtual]

return pointer to gradient values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 93 of file TLinearMinimizer.h.

virtual unsigned int TLinearMinimizer::NCalls ( ) const [inline, virtual]

number of function calls to reach the minimum

Implements ROOT::Math::Minimizer.

Definition at line 96 of file TLinearMinimizer.h.

virtual unsigned int TLinearMinimizer::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 100 of file TLinearMinimizer.h.

References fDim.

Referenced by SetFunction().

virtual unsigned int TLinearMinimizer::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 104 of file TLinearMinimizer.h.

References fNFree.

virtual bool TLinearMinimizer::ProvidesError ( ) const [inline, virtual]

minimizer provides error and error matrix

Implements ROOT::Math::Minimizer.

Definition at line 107 of file TLinearMinimizer.h.

virtual const double* TLinearMinimizer::Errors ( ) const [inline, virtual]

return errors at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 110 of file TLinearMinimizer.h.

References fErrors.

virtual double TLinearMinimizer::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 116 of file TLinearMinimizer.h.

References fCovar, and fDim.

virtual int TLinearMinimizer::CovMatrixStatus ( ) const [inline, virtual]

return covariance matrix status

Reimplemented from ROOT::Math::Minimizer.

Definition at line 121 of file TLinearMinimizer.h.

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

TLinearMinimizer& TLinearMinimizer::operator= ( const TLinearMinimizer & rhs ) [private]

Assignment operator

virtual void TLinearMinimizer::SetFunction ( const ROOT::Math::IMultiGenFunction & func ) [virtual]

set the fit model function

Implements ROOT::Math::Minimizer.

virtual void TLinearMinimizer::SetFunction ( const ROOT::Math::IMultiGradFunction & func ) [virtual]

set the function to minimize

Reimplemented from ROOT::Math::Minimizer.

virtual bool TLinearMinimizer::SetVariable	(	unsigned int	,
		const std::string &	,
		double	,
		double
	)			`[inline, virtual]`

set free variable (dummy impl. )

Implements ROOT::Math::Minimizer.

Definition at line 75 of file TLinearMinimizer.h.

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

set fixed variable (override if minimizer supports them )

Reimplemented from ROOT::Math::Minimizer.

virtual bool TLinearMinimizer::Minimize ( ) [virtual]

method to perform the minimization

Implements ROOT::Math::Minimizer.

virtual double TLinearMinimizer::MinValue ( ) const [inline, virtual]

return minimum function value

Implements ROOT::Math::Minimizer.

Definition at line 84 of file TLinearMinimizer.h.

References fMinVal.

virtual double TLinearMinimizer::Edm ( ) const [inline, virtual]

return expected distance reached from the minimum

Implements ROOT::Math::Minimizer.

Definition at line 87 of file TLinearMinimizer.h.

virtual const double* TLinearMinimizer::X ( ) const [inline, virtual]

return pointer to X values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 90 of file TLinearMinimizer.h.

References fParams.

virtual const double* TLinearMinimizer::MinGradient ( ) const [inline, virtual]

return pointer to gradient values at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 93 of file TLinearMinimizer.h.

virtual unsigned int TLinearMinimizer::NCalls ( ) const [inline, virtual]

number of function calls to reach the minimum

Implements ROOT::Math::Minimizer.

Definition at line 96 of file TLinearMinimizer.h.

virtual unsigned int TLinearMinimizer::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 100 of file TLinearMinimizer.h.

References fDim.

virtual unsigned int TLinearMinimizer::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 104 of file TLinearMinimizer.h.

References fNFree.

virtual bool TLinearMinimizer::ProvidesError ( ) const [inline, virtual]

minimizer provides error and error matrix

Implements ROOT::Math::Minimizer.

Definition at line 107 of file TLinearMinimizer.h.

virtual const double* TLinearMinimizer::Errors ( ) const [inline, virtual]

return errors at the minimum

Implements ROOT::Math::Minimizer.

Definition at line 110 of file TLinearMinimizer.h.

References fErrors.

virtual double TLinearMinimizer::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 116 of file TLinearMinimizer.h.

References fCovar, and fDim.

virtual int TLinearMinimizer::CovMatrixStatus ( ) const [inline, virtual]

return covariance matrix status

Reimplemented from ROOT::Math::Minimizer.

Definition at line 121 of file TLinearMinimizer.h.

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

Member Data Documentation

bool TLinearMinimizer::fRobust [private]

return reference to the objective function virtual const ROOT::Math::IGenFunction & Function() const;

Definition at line 136 of file TLinearMinimizer.h.

Referenced by Minimize(), SetFunction(), and TLinearMinimizer().

unsigned int TLinearMinimizer::fDim [private]

Definition at line 137 of file TLinearMinimizer.h.

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

unsigned int TLinearMinimizer::fNFree [private]

Definition at line 138 of file TLinearMinimizer.h.

Referenced by NFree(), and SetFunction().

double TLinearMinimizer::fMinVal [private]

Definition at line 139 of file TLinearMinimizer.h.

Referenced by Minimize(), and MinValue().

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

Definition at line 140 of file TLinearMinimizer.h.

Referenced by Minimize(), and X().

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

Definition at line 141 of file TLinearMinimizer.h.

Referenced by Errors(), and Minimize().

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

Definition at line 142 of file TLinearMinimizer.h.

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

const ROOT::Math::IMultiGradFunction* TLinearMinimizer::fObjFunc [private]

Definition at line 144 of file TLinearMinimizer.h.

Referenced by Minimize(), and SetFunction().

TLinearFitter* TLinearMinimizer::fFitter [private]

Definition at line 145 of file TLinearMinimizer.h.

Referenced by Minimize(), SetFixedVariable(), SetFunction(), and ~TLinearMinimizer().

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

Definition at line 140 of file TLinearMinimizer.h.

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

Definition at line 141 of file TLinearMinimizer.h.

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

Definition at line 142 of file TLinearMinimizer.h.

const ROOT::Math::IMultiGradFunction* TLinearMinimizer::fObjFunc [private]

Definition at line 144 of file TLinearMinimizer.h.

TLinearFitter* TLinearMinimizer::fFitter [private]

Definition at line 145 of file TLinearMinimizer.h.

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

include/TLinearMinimizer.h
math/minuit/inc/TLinearMinimizer.h
math/minuit/src/TLinearMinimizer.cxx

Generated on Tue Jul 5 16:42:17 2011 for ROOT_528-00b_version by

1.5.1

TLinearMinimizer Class Reference

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation