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ROOT » ROOFIT » ROOFITCORE » RooMinimizerFcn

class RooMinimizerFcn: public ROOT::Math::IBaseFunctionMultiDim


 RooMinimizerFcn is am interface class to the ROOT::Math function
 for minization.

Function Members (Methods)

public:

	RooMinimizerFcn(const RooMinimizerFcn&)
	RooMinimizerFcn(RooAbsReal* funct, RooMinimizer* context, bool verbose = false)
virtual	~RooMinimizerFcn()
void	ApplyCovarianceMatrix(TMatrixDSym& V)
void	BackProp(const ROOT::Fit::FitResult& results)
virtual ROOT::Math::IBaseFunctionMultiDim*	Clone() const
RooArgList*	GetConstParamList()
RooArgList*	GetFloatParamList()
RooArgList*	GetInitConstParamList()
RooArgList*	GetInitFloatParamList()
ofstream*	GetLogFile()
Double_t&	GetMaxFCN()
Int_t	GetNumInvalidNLL()
virtual unsigned int	NDim() const
double	ROOT::Math::IBaseFunctionMultiDim::operator()(const double* x) const
RooMinimizerFcn&	operator=(const RooMinimizerFcn&)
void	SetEvalErrorWall(Bool_t flag)
Bool_t	SetLogFile(const char* inLogfile)
void	SetPrintEvalErrors(Int_t numEvalErrors)
void	SetVerbose(Bool_t flag = kTRUE)
Bool_t	Synchronize(vector<ROOT::Fit::ParameterSettings>& parameters, Bool_t optConst, Bool_t verbose)

private:

void	ClearPdfParamAsymErr(Int_t index)
virtual double	DoEval(const double* x) const
Double_t	GetPdfParamErr(Int_t index)
Double_t	GetPdfParamVal(Int_t index)
void	SetPdfParamErr(Int_t index, Double_t value)
void	SetPdfParamErr(Int_t index, Double_t loVal, Double_t hiVal)
Bool_t	SetPdfParamVal(const Int_t& index, const Double_t& value) const
void	updateFloatVec()

Data Members

private:

RooArgList*	_constParamList
RooMinimizer*	_context
Bool_t	_doEvalErrorWall
RooArgList*	_floatParamList
vector<RooAbsArg*>	_floatParamVec
RooAbsReal*	_funct
RooArgList*	_initConstParamList
RooArgList*	_initFloatParamList
ofstream*	_logfile
double	_maxFCN
int	_nDim
int	_numBadNLL
int	_printEvalErrors
bool	_verbose

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

RooMinimizerFcn(RooAbsReal* funct, RooMinimizer* context, bool verbose = false)

 Reset the *largest* negative log-likelihood value we have seen so far

~RooMinimizerFcn()

ROOT::Math::IBaseFunctionMultiDim* Clone() const

Bool_t Synchronize(vector<ROOT::Fit::ParameterSettings>& parameters, Bool_t optConst, Bool_t verbose)

Double_t GetPdfParamVal(Int_t index)

 Access PDF parameter value by ordinal index (needed by MINUIT)

Double_t GetPdfParamErr(Int_t index)

 Access PDF parameter error by ordinal index (needed by MINUIT)

void SetPdfParamErr(Int_t index, Double_t value)

 Modify PDF parameter error by ordinal index (needed by MINUIT)

void ClearPdfParamAsymErr(Int_t index)

 Modify PDF parameter error by ordinal index (needed by MINUIT)

void SetPdfParamErr(Int_t index, Double_t loVal, Double_t hiVal)

 Modify PDF parameter error by ordinal index (needed by MINUIT)

void BackProp(const ROOT::Fit::FitResult& results)

 Transfer MINUIT fit results back into RooFit objects

Bool_t 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.

void ApplyCovarianceMatrix(TMatrixDSym& V)

 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

Bool_t SetPdfParamVal(const Int_t& index, const Double_t& value) const

RooRealVar* par = (RooRealVar*)_floatParamList->at(index);

void updateFloatVec()

double DoEval(const double* x) const

RooMinimizerFcn(RooAbsReal* funct, RooMinimizer* context, bool verbose = false)

unsigned int NDim() const

{ return _nDim; }

RooArgList* GetFloatParamList()

{ return _floatParamList; }

RooArgList* GetConstParamList()

{ return _constParamList; }

RooArgList* GetInitFloatParamList()

{ return _initFloatParamList; }

RooArgList* GetInitConstParamList()

{ return _initConstParamList; }

void SetEvalErrorWall(Bool_t flag)

{ _doEvalErrorWall = flag ; }

void SetPrintEvalErrors(Int_t numEvalErrors)

{ _printEvalErrors = numEvalErrors ; }

std::ofstream* GetLogFile()

{ return _logfile; }

void SetVerbose(Bool_t flag = kTRUE)

{ _verbose = flag ; }

Double_t& GetMaxFCN()

{ return _maxFCN; }

Int_t GetNumInvalidNLL()

{ return _numBadNLL; }