RooAbsMinimizerFcn Class Reference

Definition at line 32 of file RooAbsMinimizerFcn.h.

Public Member Functions
	RooAbsMinimizerFcn (RooArgList paramList, RooMinimizer *context)
virtual	~RooAbsMinimizerFcn ()=default
RooArgList const &	allParams () const
void	ApplyCovarianceMatrix (TMatrixDSym &V)
	Set different external covariance matrix.
void	BackProp ()
	Put Minuit results back into RooFit objects.
RooMinimizer::Config const &	cfg () const
RooArgList	constParams () const
Int_t	evalCounter () const
RooRealVar &	floatableParam (std::size_t i) const
RooArgList	floatParams () const
virtual std::string	getFunctionName () const =0
	RooMinimizer sometimes needs the name of the minimized function. Implement this in the derived class.
virtual std::string	getFunctionTitle () const =0
	RooMinimizer sometimes needs the title of the minimized function. Implement this in the derived class.
std::ofstream *	GetLogFile ()
double &	GetMaxFCN ()
virtual ROOT::Math::IMultiGenFunction *	getMultiGenFcn ()=0
unsigned int	getNDim () const
Int_t	GetNumInvalidNLL () const
double &	getOffset () const
	Return a possible offset that's applied to the function to separate invalid function values from valid ones.
RooArgList	initFloatParams () const
bool	SetLogFile (const char *inLogfile)
	Change the file name for logging of a RooMinimizer of all MINUIT steppings through the parameter space.
virtual void	setOffsetting (bool flag)=0
	Enable or disable offsetting on the function to be minimized, which enhances numerical precision.
void	setOptimizeConst (Int_t flag)
bool	SetPdfParamVal (int index, double value) const
	Set value of parameter i.
virtual bool	Synchronize (std::vector< ROOT::Fit::ParameterSettings > &parameters)
	Like synchronizeParameterSettings, Synchronize informs Minuit through its parameter_settings vector of RooFit parameter properties, but Synchronize can be overridden to e.g.
bool	synchronizeParameterSettings (std::vector< ROOT::Fit::ParameterSettings > &parameters, bool optConst)
	Informs Minuit through its parameter_settings vector of RooFit parameter properties.
void	zeroEvalCount ()

Protected Member Functions
double	applyEvalErrorHandling (double fvalue) const
	Apply corrections on the fvalue if errors were signaled.
void	finishDoEval () const
void	optimizeConstantTerms (bool constStatChange, bool constValChange)
void	printEvalErrors () const
	Print information about why evaluation failed.
virtual void	setOptimizeConstOnFunction (RooAbsArg::ConstOpCode opcode, bool doAlsoTrackingOpt)=0
	This function must be overridden in the derived class to pass on constant term optimization configuration to the function to be minimized.

Static Protected Member Functions
static bool	canBeFloating (RooAbsArg const &arg)
static bool	treatAsConstant (RooAbsArg const &arg)

Protected Attributes
RooArgList	_allParams
RooArgList	_allParamsInit
RooMinimizer *	_context = nullptr
int	_evalCounter {0}
std::vector< std::size_t >	_floatableParamIndices
double	_funcOffset {0.}
std::ofstream *	_logfile = nullptr
double	_maxFCN = -std::numeric_limits<double>::infinity()
int	_numBadNLL = 0
bool	_optConst = false

#include </home/sftnight/build/workspace/root-makedoc-master/rootspi/rdoc/src/master/roofit/roofitcore/src/RooAbsMinimizerFcn.h>

Inheritance diagram for RooAbsMinimizerFcn:

Constructor & Destructor Documentation

RooAbsMinimizerFcn()

RooAbsMinimizerFcn::RooAbsMinimizerFcn	(	RooArgList	paramList,
		RooMinimizer *	context
	)

Definition at line 39 of file RooAbsMinimizerFcn.cxx.

~RooAbsMinimizerFcn()

virtual RooAbsMinimizerFcn::~RooAbsMinimizerFcn ( )

virtualdefault

Member Function Documentation

allParams()

RooArgList const & RooAbsMinimizerFcn::allParams ( ) const

inline

Definition at line 46 of file RooAbsMinimizerFcn.h.

ApplyCovarianceMatrix()

void RooAbsMinimizerFcn::ApplyCovarianceMatrix

(

TMatrixDSym &

V

)

Set different external covariance matrix.

Apply results of given external covariance matrix.

i.e. propagate its errors to all RRV parameter representations and give this matrix instead of the HESSE matrix at the next save() call

Definition at line 219 of file RooAbsMinimizerFcn.cxx.

applyEvalErrorHandling()

double RooAbsMinimizerFcn::applyEvalErrorHandling ( double  fvalue ) const

protected

Apply corrections on the fvalue if errors were signaled.

Two kinds of errors are possible: 1. infinite or nan values (the latter can be a signaling nan, using RooNaNPacker) or 2. logEvalError-type errors. Both are caught here and fvalue is updated so that Minuit in turn is nudged to move the search outside of the problematic parameter space area.

Definition at line 276 of file RooAbsMinimizerFcn.cxx.

BackProp()

void RooAbsMinimizerFcn::BackProp

(

)

Put Minuit results back into RooFit objects.

Transfer MINUIT fit results back into RooFit objects.

Definition at line 166 of file RooAbsMinimizerFcn.cxx.

canBeFloating()

static bool RooAbsMinimizerFcn::canBeFloating ( RooAbsArg const &  arg )

inlinestaticprotected

Definition at line 100 of file RooAbsMinimizerFcn.h.

cfg()

RooMinimizer::Config const & RooAbsMinimizerFcn::cfg ( ) const

inline

Definition at line 82 of file RooAbsMinimizerFcn.h.

constParams()

RooArgList RooAbsMinimizerFcn::constParams

(

)

const

Definition at line 364 of file RooAbsMinimizerFcn.cxx.

evalCounter()

Int_t RooAbsMinimizerFcn::evalCounter ( ) const

inline

Definition at line 53 of file RooAbsMinimizerFcn.h.

finishDoEval()

void RooAbsMinimizerFcn::finishDoEval ( ) const

protected

Definition at line 300 of file RooAbsMinimizerFcn.cxx.

floatableParam()

RooRealVar & RooAbsMinimizerFcn::floatableParam ( std::size_t  i ) const

inline

Definition at line 84 of file RooAbsMinimizerFcn.h.

floatParams()

RooArgList RooAbsMinimizerFcn::floatParams

(

)

const

Definition at line 354 of file RooAbsMinimizerFcn.cxx.

getFunctionName()

virtual std::string RooAbsMinimizerFcn::getFunctionName ( ) const

pure virtual

RooMinimizer sometimes needs the name of the minimized function. Implement this in the derived class.

Implemented in RooMinimizerFcn, and RooFit::TestStatistics::MinuitFcnGrad.

getFunctionTitle()

virtual std::string RooAbsMinimizerFcn::getFunctionTitle ( ) const

pure virtual

RooMinimizer sometimes needs the title of the minimized function. Implement this in the derived class.

Implemented in RooMinimizerFcn, and RooFit::TestStatistics::MinuitFcnGrad.

GetLogFile()

std::ofstream * RooAbsMinimizerFcn::GetLogFile ( )

inline

Definition at line 70 of file RooAbsMinimizerFcn.h.

GetMaxFCN()

double & RooAbsMinimizerFcn::GetMaxFCN ( )

inline

Definition at line 52 of file RooAbsMinimizerFcn.h.

getMultiGenFcn()

virtual ROOT::Math::IMultiGenFunction * RooAbsMinimizerFcn::getMultiGenFcn ( )

pure virtual

Implemented in RooMinimizerFcn, and RooFit::TestStatistics::MinuitFcnGrad.

getNDim()

unsigned int RooAbsMinimizerFcn::getNDim ( ) const

inline

Definition at line 72 of file RooAbsMinimizerFcn.h.

GetNumInvalidNLL()

Int_t RooAbsMinimizerFcn::GetNumInvalidNLL ( ) const

inline

Definition at line 50 of file RooAbsMinimizerFcn.h.

getOffset()

double & RooAbsMinimizerFcn::getOffset ( ) const

inline

Return a possible offset that's applied to the function to separate invalid function values from valid ones.

Definition at line 56 of file RooAbsMinimizerFcn.h.

initFloatParams()

RooArgList RooAbsMinimizerFcn::initFloatParams

(

)

const

Definition at line 374 of file RooAbsMinimizerFcn.cxx.

optimizeConstantTerms()

void RooAbsMinimizerFcn::optimizeConstantTerms ( bool  constStatChange, bool  constValChange  )

protected

Definition at line 336 of file RooAbsMinimizerFcn.cxx.

printEvalErrors()

void RooAbsMinimizerFcn::printEvalErrors ( ) const

protected

Print information about why evaluation failed.

Using _printEvalErrors, the number of errors printed can be steered. Negative values disable printing.

Definition at line 245 of file RooAbsMinimizerFcn.cxx.

SetLogFile()

bool RooAbsMinimizerFcn::SetLogFile

(

const char *

inLogfile

)

Change the file name for logging of a RooMinimizer of all MINUIT steppings through the parameter space.

If inLogfile is null, the current log file is closed and logging is stopped.

Definition at line 197 of file RooAbsMinimizerFcn.cxx.

setOffsetting()

virtual void RooAbsMinimizerFcn::setOffsetting ( bool  flag )

pure virtual

Enable or disable offsetting on the function to be minimized, which enhances numerical precision.

Implemented in RooMinimizerFcn, and RooFit::TestStatistics::MinuitFcnGrad.

setOptimizeConst()

void RooAbsMinimizerFcn::setOptimizeConst

(

Int_t

flag

)

Definition at line 305 of file RooAbsMinimizerFcn.cxx.

setOptimizeConstOnFunction()

virtual void RooAbsMinimizerFcn::setOptimizeConstOnFunction ( RooAbsArg::ConstOpCode  opcode, bool  doAlsoTrackingOpt  )

protectedpure virtual

This function must be overridden in the derived class to pass on constant term optimization configuration to the function to be minimized.

For a RooAbsArg, this would be RooAbsArg::constOptimizeTestStatistic.

Implemented in RooMinimizerFcn, and RooFit::TestStatistics::MinuitFcnGrad.

SetPdfParamVal()

bool RooAbsMinimizerFcn::SetPdfParamVal	(	int	index,
		double	value
	)		const

Set value of parameter i.

Definition at line 227 of file RooAbsMinimizerFcn.cxx.

Synchronize()

bool RooAbsMinimizerFcn::Synchronize ( std::vector< ROOT::Fit::ParameterSettings > &  parameters )

virtual

Like synchronizeParameterSettings, Synchronize informs Minuit through its parameter_settings vector of RooFit parameter properties, but Synchronize can be overridden to e.g.

also include gradient strategy synchronization in subclasses.

Reimplemented in RooFit::TestStatistics::MinuitFcnGrad.

Definition at line 160 of file RooAbsMinimizerFcn.cxx.

synchronizeParameterSettings()

bool RooAbsMinimizerFcn::synchronizeParameterSettings	(	std::vector< ROOT::Fit::ParameterSettings > &	parameters,
		bool	optConst
	)

Informs Minuit through its parameter_settings vector of RooFit parameter properties.

Internal function to synchronize TMinimizer with current information in RooAbsReal function parameters.

Definition at line 69 of file RooAbsMinimizerFcn.cxx.

treatAsConstant()

static bool RooAbsMinimizerFcn::treatAsConstant ( RooAbsArg const &  arg )

inlinestaticprotected

Definition at line 103 of file RooAbsMinimizerFcn.h.

zeroEvalCount()

void RooAbsMinimizerFcn::zeroEvalCount ( )

inline

Definition at line 54 of file RooAbsMinimizerFcn.h.

Member Data Documentation

_allParams

RooArgList RooAbsMinimizerFcn::_allParams

protected

Definition at line 121 of file RooAbsMinimizerFcn.h.

_allParamsInit

RooArgList RooAbsMinimizerFcn::_allParamsInit

protected

Definition at line 122 of file RooAbsMinimizerFcn.h.

_context

RooMinimizer* RooAbsMinimizerFcn::_context = nullptr

protected

Definition at line 106 of file RooAbsMinimizerFcn.h.

_evalCounter

int RooAbsMinimizerFcn::_evalCounter {0}

mutableprotected

Definition at line 113 of file RooAbsMinimizerFcn.h.

_floatableParamIndices

std::vector<std::size_t> RooAbsMinimizerFcn::_floatableParamIndices

protected

Definition at line 124 of file RooAbsMinimizerFcn.h.

_funcOffset

double RooAbsMinimizerFcn::_funcOffset {0.}

mutableprotected

Definition at line 111 of file RooAbsMinimizerFcn.h.

_logfile

std::ofstream* RooAbsMinimizerFcn::_logfile = nullptr

protected

Definition at line 126 of file RooAbsMinimizerFcn.h.

_maxFCN

double RooAbsMinimizerFcn::_maxFCN = -std::numeric_limits<double>::infinity()

mutableprotected

Definition at line 110 of file RooAbsMinimizerFcn.h.

_numBadNLL

int RooAbsMinimizerFcn::_numBadNLL = 0

mutableprotected

Definition at line 112 of file RooAbsMinimizerFcn.h.

_optConst

bool RooAbsMinimizerFcn::_optConst = false

protected

Definition at line 119 of file RooAbsMinimizerFcn.h.