RooMinuit is a wrapper class around TFitter/TMinuit that provides a seamless interface between the MINUIT functionality and the native RooFit interface.

RooMinuit can minimize any RooAbsReal function with respect to its parameters. Usual choices for minimization are RooNLLVar and RooChi2Var RooMinuit has methods corresponding to MINUIT functions like hesse(), migrad(), minos() etc. In each of these function calls the state of the MINUIT engine is synchronized with the state of the RooFit variables: any change in variables, change in the constant status etc is forwarded to MINUIT prior to execution of the MINUIT call. Afterwards the RooFit objects are resynchronized with the output state of MINUIT: changes parameter values, errors are propagated. Various methods are available to control verbosity, profiling, automatic PDF optimization.

Definition at line 41 of file RooMinuit.h.

Public Types
enum	PrintLevel { None =-1 , Reduced =0 , Normal =1 , ExtraForProblem =2 , Maximum =3 }

enum	Strategy { Speed =0 , Balance =1 , Robustness =2 }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Public Member Functions
	RooMinuit (RooAbsReal &function)
	Construct MINUIT interface to given function.

	~RooMinuit () override
	Destructor.

RooPlot *	contour (RooRealVar &var1, RooRealVar &var2, double n1=1, double n2=2, double n3=0.0, double n4=0.0, double n5=0.0, double n6=0.0)
	Create and draw a TH2 with the error contours in parameters var1 and v2 at up to 6 'sigma' settings where 'sigma' is calculated as nnerrorLevel.

Int_t	evalCounter () const

RooFitResult *	fit (const char *options)
	Parse traditional RooAbsPdf::fitTo driver options.

Int_t	hesse ()
	Execute HESSE.

Int_t	improve ()
	Execute IMPROVE.

Int_t	migrad ()
	Execute MIGRAD.

Int_t	minos ()
	Execute MINOS.

Int_t	minos (const RooArgSet &minosParamList)
	Execute MINOS for given list of parameters.

void	optimizeConst (Int_t flag)
	If flag is true, perform constant term optimization on function being minimized.

RooFitResult *	save (const char name=nullptr, const char title=nullptr)
	Save and return a RooFitResult snaphot of current minimizer status.

Int_t	seek ()
	Execute SEEK.

void	setEps (double eps)
	Change MINUIT epsilon.

void	setErrorLevel (double level)
	Set the level for MINUIT error analysis to the given value.

void	setEvalErrorWall (bool flag)

bool	setLogFile (const char *logfile=nullptr)
	Change the file name for logging of a RooMinuit of all MINUIT steppings through the parameter space.

void	setMaxEvalMultiplier (Int_t n)

void	setNoWarn ()
	Instruct MINUIT to suppress warnings.

void	setOffsetting (bool flag)
	Enable internal likelihood offsetting for enhanced numeric precision.

void	setPrintEvalErrors (Int_t numEvalErrors)

Int_t	setPrintLevel (Int_t newLevel)
	Change the MINUIT internal printing level.

void	setProfile (bool flag=true)

void	setStrategy (Int_t strat)
	Change MINUIT strategy to istrat.

void	setVerbose (bool flag=true)

Int_t	setWarnLevel (Int_t newLevel)
	Set MINUIT warning level to given level.

Int_t	simplex ()
	Execute SIMPLEX.

void	zeroEvalCount ()

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.

virtual void	Copy (TObject &object) const
	Copy this to obj.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual const char *	GetName () const
	Returns name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object.

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

virtual ULong_t	Hash () const
	Return hash value for this object.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

virtual TClass *	IsA () const

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete[] (void *ptr)
	Operator delete [].

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

virtual void	Streamer (TBuffer &)
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static void	cleanup ()
	Cleanup method called by atexit handler installed by RooSentinel to delete all global heap objects when the program is terminated.

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Public Attributes
enum RooMinuit::Strategy	R__DEPRECATED

Protected Member Functions
void	applyCovarianceMatrix (TMatrixDSym &V)
	Apply results of given external covariance matrix.

void	backProp ()
	Transfer MINUIT fit results back into RooFit objects.

void	clearPdfParamAsymErr (Int_t index)
	Modify PDF parameter error by ordinal index (needed by MINUIT)

Int_t	getNPar () const

double	getPdfParamErr (Int_t index)
	Access PDF parameter error by ordinal index (needed by MINUIT)

double	getPdfParamVal (Int_t index)
	Access PDF parameter value by ordinal index (needed by MINUIT)

std::ofstream *	logfile () const

double &	maxFCN ()

void	profileStart ()
	Start profiling timer.

void	profileStop ()
	Stop profiling timer and report results of last session.

void	saveStatus (const char *label, Int_t status)

void	setPdfParamErr (Int_t index, double loVal, double hiVal)
	Modify PDF parameter error by ordinal index (needed by MINUIT)

void	setPdfParamErr (Int_t index, double value)
	Modify PDF parameter error by ordinal index (needed by MINUIT)

virtual bool	setPdfParamVal (Int_t index, double value, bool verbose=false)
	Modify PDF parameter value by ordinal index (needed by MINUIT)

bool	synchronize (bool verbose)
	Internal function to synchronize TMinuit with current information in RooAbsReal function parameters.

void	updateFloatVec ()

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Private Member Functions
	RooMinuit (const RooMinuit &)

Private Attributes
RooArgList *	_constParamList

TStopwatch	_cumulTimer

bool	_doEvalErrorWall

Int_t	_evalCounter

TMatrixDSym *	_extV

RooArgList *	_floatParamList

std::vector< RooAbsArg * >	_floatParamVec

RooAbsReal *	_func

bool	_handleLocalErrors

RooArgList *	_initConstParamList

RooArgList *	_initFloatParamList

std::ofstream *	_logfile

Int_t	_maxEvalMult

double	_maxFCN

Int_t	_nPar

Int_t	_numBadNLL

Int_t	_optConst

Int_t	_printEvalErrors

Int_t	_printLevel

bool	_profile

Int_t	_status

std::vector< std::pair< std::string, int > >	_statusHistory

TStopwatch	_timer

bool	_verbose

Int_t	_warnLevel

Static Private Attributes
static TVirtualFitter *	_theFitter = nullptr

Friends
class	RooAbsPdf

void	RooMinuitGlue (Int_t &np, double gin, double &f, double par, Int_t flag)

Additional Inherited Members
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

#include <RooFitLegacy/RooMinuit.h>

Inheritance diagram for RooMinuit:

[legend]

Member Enumeration Documentation

◆ PrintLevel

enum RooMinuit::PrintLevel

Enumerator
None
Reduced
Normal
ExtraForProblem
Maximum

Definition at line 48 of file RooMinuit.h.

◆ Strategy

enum RooMinuit::Strategy

Enumerator
Speed
Balance
Robustness

Definition at line 47 of file RooMinuit.h.

Constructor & Destructor Documentation

◆ RooMinuit() [1/2]

RooMinuit::RooMinuit ( RooAbsReal & function )

Construct MINUIT interface to given function.

Function can be anything, but is typically a -log(likelihood) implemented by RooNLLVar or a chi^2 (implemented by RooChi2Var). Other frequent use cases are a RooAddition of a RooNLLVar plus a penalty or constraint term. This class propagates all RooFit information (floating parameters, their values and errors) to MINUIT before each MINUIT call and propagates all MINUIT information back to the RooFit object at the end of each call (updated parameter values, their (asymmetric errors) etc. The default MINUIT error level for HESSE and MINOS error analysis is taken from the defaultErrorLevel() value of the input function.

Definition at line 105 of file RooMinuit.cxx.

◆ ~RooMinuit()

RooMinuit::~RooMinuit ( )

override

Destructor.

Definition at line 194 of file RooMinuit.cxx.

◆ RooMinuit() [2/2]

RooMinuit::RooMinuit ( const RooMinuit & )

private

Member Function Documentation

◆ applyCovarianceMatrix()

void RooMinuit::applyCovarianceMatrix ( TMatrixDSym & V )

protected

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 1169 of file RooMinuit.cxx.

◆ backProp()

void RooMinuit::backProp ( )

protected

Transfer MINUIT fit results back into RooFit objects.

Definition at line 1126 of file RooMinuit.cxx.

◆ cleanup()

void RooMinuit::cleanup ( )

static

Cleanup method called by atexit handler installed by RooSentinel to delete all global heap objects when the program is terminated.

Definition at line 83 of file RooMinuit.cxx.

◆ clearPdfParamAsymErr()

void RooMinuit::clearPdfParamAsymErr ( Int_t index )

protected

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

Definition at line 1076 of file RooMinuit.cxx.

◆ contour()

RooPlot * RooMinuit::contour	(	RooRealVar &	var1,
		RooRealVar &	var2,
		double	n1 = `1`,
		double	n2 = `2`,
		double	n3 = `0.0`,
		double	n4 = `0.0`,
		double	n5 = `0.0`,
		double	n6 = `0.0`
	)

Create and draw a TH2 with the error contours in parameters var1 and v2 at up to 6 'sigma' settings where 'sigma' is calculated as n*n*errorLevel.

Definition at line 932 of file RooMinuit.cxx.

◆ evalCounter()

Int_t RooMinuit::evalCounter ( ) const

inline

Definition at line 82 of file RooMinuit.h.

◆ fit()

RooFitResult * RooMinuit::fit ( const char * options )

Parse traditional RooAbsPdf::fitTo driver options.

s - Run Hesse first to estimate initial step size m - Run Migrad only h - Run Hesse to estimate errors v - Verbose mode l - Log parameters after each Minuit steps to file t - Activate profile timer r - Save fit result 0 - Run Migrad with strategy 0

Definition at line 265 of file RooMinuit.cxx.

◆ getNPar()

Int_t RooMinuit::getNPar ( ) const

inlineprotected

Definition at line 98 of file RooMinuit.h.

◆ getPdfParamErr()

double RooMinuit::getPdfParamErr ( Int_t index )

protected

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

Definition at line 1037 of file RooMinuit.cxx.

◆ getPdfParamVal()

double RooMinuit::getPdfParamVal ( Int_t index )

protected

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

Definition at line 1027 of file RooMinuit.cxx.

◆ hesse()

Int_t RooMinuit::hesse ( )

Execute HESSE.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 335 of file RooMinuit.cxx.

◆ improve()

Int_t RooMinuit::improve ( )

Execute IMPROVE.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 528 of file RooMinuit.cxx.

◆ logfile()

std::ofstream * RooMinuit::logfile ( ) const

inlineprotected

Definition at line 99 of file RooMinuit.h.

◆ maxFCN()

double & RooMinuit::maxFCN ( )

inlineprotected

Definition at line 100 of file RooMinuit.h.

◆ migrad()

Int_t RooMinuit::migrad ( )

Execute MIGRAD.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 301 of file RooMinuit.cxx.

◆ minos() [1/2]

Int_t RooMinuit::minos ( )

Execute MINOS.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 368 of file RooMinuit.cxx.

◆ minos() [2/2]

Int_t RooMinuit::minos ( const RooArgSet & minosParamList )

Execute MINOS for given list of parameters.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 408 of file RooMinuit.cxx.

◆ optimizeConst()

void RooMinuit::optimizeConst ( Int_t flag )

If flag is true, perform constant term optimization on function being minimized.

Definition at line 834 of file RooMinuit.cxx.

◆ profileStart()

void RooMinuit::profileStart ( )

protected

Start profiling timer.

Definition at line 1095 of file RooMinuit.cxx.

◆ profileStop()

void RooMinuit::profileStop ( )

protected

Stop profiling timer and report results of last session.

Definition at line 1109 of file RooMinuit.cxx.

◆ save()

RooFitResult * RooMinuit::save	(	const char *	userName = `nullptr`,
		const char *	userTitle = `nullptr`
	)

Save and return a RooFitResult snaphot of current minimizer status.

This snapshot contains the values of all constant parameters, the value of all floating parameters at RooMinuit construction and after the last MINUIT operation, the MINUIT status, variance quality, EDM setting, number of calls with evaluation problems, the minimized function value and the full correlation matrix

Definition at line 866 of file RooMinuit.cxx.

◆ saveStatus()

void RooMinuit::saveStatus	(	const char *	label,
		Int_t	status
	)

inlineprotected

Definition at line 109 of file RooMinuit.h.

◆ seek()

Int_t RooMinuit::seek ( )

Execute SEEK.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 461 of file RooMinuit.cxx.

◆ setEps()

void RooMinuit::setEps ( double eps )

Change MINUIT epsilon.

Definition at line 237 of file RooMinuit.cxx.

◆ setErrorLevel()

void RooMinuit::setErrorLevel ( double level )

Set the level for MINUIT error analysis to the given value.

This function overrides the default value that is taken in the RooMinuit constructor from the defaultErrorLevel() method of the input function

Definition at line 227 of file RooMinuit.cxx.

◆ setEvalErrorWall()

void RooMinuit::setEvalErrorWall ( bool flag )

inline

Definition at line 53 of file RooMinuit.h.

◆ setLogFile()

bool RooMinuit::setLogFile ( const char * inLogfile = nullptr )

Change the file name for logging of a RooMinuit 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 1004 of file RooMinuit.cxx.

◆ setMaxEvalMultiplier()

void RooMinuit::setMaxEvalMultiplier ( Int_t n )

inline

Definition at line 77 of file RooMinuit.h.

◆ setNoWarn()

void RooMinuit::setNoWarn ( )

Instruct MINUIT to suppress warnings.

Definition at line 572 of file RooMinuit.cxx.

◆ setOffsetting()

void RooMinuit::setOffsetting ( bool flag )

Enable internal likelihood offsetting for enhanced numeric precision.

Definition at line 247 of file RooMinuit.cxx.

◆ setPdfParamErr() [1/2]

void RooMinuit::setPdfParamErr	(	Int_t	index,
		double	loVal,
		double	hiVal
	)

protected

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

Definition at line 1085 of file RooMinuit.cxx.

◆ setPdfParamErr() [2/2]

void RooMinuit::setPdfParamErr	(	Int_t	index,
		double	value
	)

protected

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

Definition at line 1066 of file RooMinuit.cxx.

◆ setPdfParamVal()

bool RooMinuit::setPdfParamVal	(	Int_t	index,
		double	value,
		bool	verbose = `false`
	)

protectedvirtual

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

Definition at line 1047 of file RooMinuit.cxx.

◆ setPrintEvalErrors()

void RooMinuit::setPrintEvalErrors ( Int_t numEvalErrors )

inline

Definition at line 74 of file RooMinuit.h.

◆ setPrintLevel()

Int_t RooMinuit::setPrintLevel ( Int_t newLevel )

Change the MINUIT internal printing level.

Definition at line 558 of file RooMinuit.cxx.

◆ setProfile()

void RooMinuit::setProfile ( bool flag = true )

inline

Definition at line 76 of file RooMinuit.h.

◆ setStrategy()

void RooMinuit::setStrategy ( Int_t istrat )

Change MINUIT strategy to istrat.

Accepted codes are 0,1,2 and represent MINUIT strategies for dealing most efficiently with fast FCNs (0), expensive FCNs (2) and 'intermediate' FCNs (1)

Definition at line 213 of file RooMinuit.cxx.

◆ setVerbose()

void RooMinuit::setVerbose ( bool flag = true )

inline

Definition at line 75 of file RooMinuit.h.

◆ setWarnLevel()

Int_t RooMinuit::setWarnLevel ( Int_t newLevel )

Set MINUIT warning level to given level.

Definition at line 584 of file RooMinuit.cxx.

◆ simplex()

Int_t RooMinuit::simplex ( )

Execute SIMPLEX.

Changes in parameter values and calculated errors are automatically propagated back the RooRealVars representing the floating parameters in the MINUIT operation

Definition at line 494 of file RooMinuit.cxx.

◆ synchronize()

bool RooMinuit::synchronize ( bool verbose )

protected

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

Definition at line 610 of file RooMinuit.cxx.

◆ updateFloatVec()

void RooMinuit::updateFloatVec ( )

protected

Definition at line 1152 of file RooMinuit.cxx.

◆ zeroEvalCount()

void RooMinuit::zeroEvalCount ( )

inline

Definition at line 83 of file RooMinuit.h.

Friends And Related Symbol Documentation

◆ RooAbsPdf

friend class RooAbsPdf

friend

Definition at line 87 of file RooMinuit.h.

◆ RooMinuitGlue

void RooMinuitGlue	(	Int_t &	np,
		double *	gin,
		double &	f,
		double *	par,
		Int_t	flag
	)

friend

Definition at line 1189 of file RooMinuit.cxx.

Member Data Documentation

◆ _constParamList

RooArgList* RooMinuit::_constParamList

private

Definition at line 130 of file RooMinuit.h.

◆ _cumulTimer

TStopwatch RooMinuit::_cumulTimer

private

Definition at line 138 of file RooMinuit.h.

◆ _doEvalErrorWall

bool RooMinuit::_doEvalErrorWall

private

Definition at line 125 of file RooMinuit.h.

◆ _evalCounter

Int_t RooMinuit::_evalCounter

private

Definition at line 115 of file RooMinuit.h.

◆ _extV

TMatrixDSym* RooMinuit::_extV

private

Definition at line 140 of file RooMinuit.h.

◆ _floatParamList

RooArgList* RooMinuit::_floatParamList

private

Definition at line 127 of file RooMinuit.h.

◆ _floatParamVec

std::vector<RooAbsArg*> RooMinuit::_floatParamVec

private

Definition at line 128 of file RooMinuit.h.

◆ _func

RooAbsReal* RooMinuit::_func

private

Definition at line 132 of file RooMinuit.h.

◆ _handleLocalErrors

bool RooMinuit::_handleLocalErrors

private

Definition at line 121 of file RooMinuit.h.

◆ _initConstParamList

RooArgList* RooMinuit::_initConstParamList

private

Definition at line 131 of file RooMinuit.h.

◆ _initFloatParamList

RooArgList* RooMinuit::_initFloatParamList

private

Definition at line 129 of file RooMinuit.h.

◆ _logfile

std::ofstream* RooMinuit::_logfile

private

Definition at line 135 of file RooMinuit.h.

◆ _maxEvalMult

Int_t RooMinuit::_maxEvalMult

private

Definition at line 126 of file RooMinuit.h.

◆ _maxFCN

double RooMinuit::_maxFCN

private

Definition at line 134 of file RooMinuit.h.

◆ _nPar

Int_t RooMinuit::_nPar

private

Definition at line 123 of file RooMinuit.h.

◆ _numBadNLL

Int_t RooMinuit::_numBadNLL

private

Definition at line 122 of file RooMinuit.h.

◆ _optConst

Int_t RooMinuit::_optConst

private

Definition at line 119 of file RooMinuit.h.

◆ _printEvalErrors

Int_t RooMinuit::_printEvalErrors

private

Definition at line 124 of file RooMinuit.h.

◆ _printLevel

Int_t RooMinuit::_printLevel

private

Definition at line 116 of file RooMinuit.h.

◆ _profile

bool RooMinuit::_profile

private

Definition at line 120 of file RooMinuit.h.

◆ _status

Int_t RooMinuit::_status

private

Definition at line 118 of file RooMinuit.h.

◆ _statusHistory

std::vector<std::pair<std::string,int> > RooMinuit::_statusHistory

private

Definition at line 144 of file RooMinuit.h.

◆ _theFitter

TVirtualFitter * RooMinuit::_theFitter = nullptr

staticprivate

Definition at line 142 of file RooMinuit.h.

◆ _timer

TStopwatch RooMinuit::_timer

private

Definition at line 137 of file RooMinuit.h.

◆ _verbose

bool RooMinuit::_verbose

private

Definition at line 136 of file RooMinuit.h.

◆ _warnLevel

Int_t RooMinuit::_warnLevel

private

Definition at line 117 of file RooMinuit.h.

◆ R__DEPRECATED

enum RooMinuit::Strategy RooMinuit::R__DEPRECATED

Libraries for RooMinuit:

[legend]

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

roofit/roofitcore/inc/RooFitLegacy/RooMinuit.h
roofit/roofitcore/src/RooFitLegacy/RooMinuit.cxx

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Additional Inherited Members

Member Enumeration Documentation

◆ PrintLevel

◆ Strategy

Constructor & Destructor Documentation

◆ RooMinuit() [1/2]

◆ ~RooMinuit()

◆ RooMinuit() [2/2]

Member Function Documentation

◆ applyCovarianceMatrix()

◆ backProp()

◆ cleanup()

◆ clearPdfParamAsymErr()

◆ contour()

◆ evalCounter()

◆ fit()

◆ getNPar()

◆ getPdfParamErr()

◆ getPdfParamVal()

◆ hesse()

◆ improve()

◆ logfile()

◆ maxFCN()

◆ migrad()

◆ minos() [1/2]

◆ minos() [2/2]

◆ optimizeConst()

◆ profileStart()

◆ profileStop()

◆ save()

◆ saveStatus()

◆ seek()

◆ setEps()

◆ setErrorLevel()

◆ setEvalErrorWall()

◆ setLogFile()

◆ setMaxEvalMultiplier()

◆ setNoWarn()

◆ setOffsetting()

◆ setPdfParamErr() [1/2]

◆ setPdfParamErr() [2/2]

◆ setPdfParamVal()

◆ setPrintEvalErrors()

◆ setPrintLevel()

◆ setProfile()

◆ setStrategy()

◆ setVerbose()

◆ setWarnLevel()

◆ simplex()

◆ synchronize()

◆ updateFloatVec()

◆ zeroEvalCount()

Friends And Related Symbol Documentation

◆ RooAbsPdf

◆ RooMinuitGlue

Member Data Documentation

◆ _constParamList

◆ _cumulTimer

◆ _doEvalErrorWall

◆ _evalCounter

◆ _extV

◆ _floatParamList

◆ _floatParamVec

◆ _func

◆ _handleLocalErrors

◆ _initConstParamList

◆ _initFloatParamList

◆ _logfile

◆ _maxEvalMult

◆ _maxFCN

◆ _nPar