Fitter using a Genetic Algorithm.

Definition at line 44 of file GeneticFitter.h.

Public Member Functions
	GeneticFitter (IFitterTarget &target, const TString &name, const std::vector< TMVA::Interval * > &ranges, const TString &theOption)
	constructor

virtual	~GeneticFitter ()

virtual TClass *	IsA () const

Double_t	NewFitness (Double_t oldF, Double_t newF)

Double_t	Run (std::vector< Double_t > &pars)
	Execute fitting.

void	SetParameters (Int_t cycles, Int_t nsteps, Int_t popSize, Int_t SC_steps, Int_t SC_rate, Double_t SC_factor, Double_t convCrit)
	set GA configuration parameters

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TMVA::FitterBase
	FitterBase (IFitterTarget &target, const TString &name, const std::vector< TMVA::Interval * > ranges, const TString &theOption)
	constructor

virtual	~FitterBase ()

Double_t	EstimatorFunction (std::vector< Double_t > &parameters)
	estimator function interface for fitting

IFitterTarget &	GetFitterTarget () const

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

Int_t	GetNpars () const

Double_t	Run ()
	estimator function interface for fitting

void	SetIPythonInteractive (bool ExitFromTraining, UInt_t fIPyMaxIter_, UInt_t *fIPyCurrentIter_)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TMVA::Configurable
	Configurable (const TString &theOption="")
	constructor

virtual	~Configurable ()
	default destructor

void	AddOptionsXMLTo (void *parent) const
	write options to XML file

template<class T >
void	AddPreDefVal (const T &)

template<class T >
void	AddPreDefVal (const TString &optname, const T &)

void	CheckForUnusedOptions () const
	checks for unused options in option string

template<class T >
TMVA::OptionBase *	DeclareOptionRef (T &ref, const TString &name, const TString &desc)

template<class T >
OptionBase *	DeclareOptionRef (T &ref, const TString &name, const TString &desc="")

template<class T >
TMVA::OptionBase *	DeclareOptionRef (T *&ref, Int_t size, const TString &name, const TString &desc)

template<class T >
OptionBase *	DeclareOptionRef (T *&ref, Int_t size, const TString &name, const TString &desc="")

const char *	GetConfigDescription () const

const char *	GetConfigName () const

const TString &	GetOptions () const

MsgLogger &	Log () const

virtual void	ParseOptions ()
	options parser

void	PrintOptions () const
	prints out the options set in the options string and the defaults

void	ReadOptionsFromStream (std::istream &istr)
	read option back from the weight file

void	ReadOptionsFromXML (void *node)

void	SetConfigDescription (const char *d)

void	SetConfigName (const char *n)

void	SetMsgType (EMsgType t)

void	SetOptions (const TString &s)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	WriteOptionsToStream (std::ostream &o, const TString &prefix) const
	write options to output stream (e.g. in writing the MVA weight files

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor.

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor.

void	Clear (Option_t *option="") override
	Set name and title to empty strings ("").

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

Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.

void	Copy (TObject &named) const override
	Copy this to obj.

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.

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

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

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

TClass *	IsA () const override

Bool_t	IsSortable () const override

void	ls (Option_t *option="") const override
	List TNamed name and title.

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

void	Print (Option_t *option="") const override
	Print TNamed name and title.

virtual void	SetName (const char *name)
	Set the name of the TNamed.

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title).

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

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	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 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 UInt_t	GetUniqueID () const
	Return the unique object id.

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

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)

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

R__ALWAYS_INLINE Bool_t	IsZombie () const

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 (the base implementation is no-op).

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, void vp)
	Only called by placement new when throwing an exception.

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

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

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 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.

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 TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TMVA::FitterBase
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TMVA::Configurable
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

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

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

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.

Private Member Functions
void	DeclareOptions ()
	declare GA options

Private Attributes
Double_t	fConvCrit
	improvements bigger than fConvCrit are counted as "improvement"

Int_t	fCycles
	number of (nearly) independent calculation cycles

Int_t	fNsteps
	convergence criteria: if no improvements > fConvCrit was achieved within the last fNsteps: cycle has "converged"

Int_t	fPopSize
	number of individuals to start with

Int_t	fSaveBestFromCycle
	store the best individuals from one cycle (these are included as "hints" in the last cycle of GA calculation)

Int_t	fSaveBestFromGeneration
	store the best individuals from one generation (these are included as "hints" in the last cycle of GA calculation)

Double_t	fSC_factor
	... with fSC_factor; if there were less improvements: divide by that factor; if there were exactly fSC_rate improvements, dont change anything

Int_t	fSC_rate
	... fSC_rate improvements, than multiply the sigma of the gaussian which defines how the random numbers are generated ...

Int_t	fSC_steps
	regulates how strong the mutations for the coordinates are: if within fSC_steps there were more than...

UInt_t	fSeed
	Seed for the random generator (0 takes random seeds)

Bool_t	fTrim
	take care, that the number of individuals is less fPopSize (trimming is done after the fitness of the individuals is assessed)

Additional Inherited Members
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 )) }

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

Protected Member Functions inherited from TMVA::FitterBase
MsgLogger &	Log () const
	message logger

Protected Member Functions inherited from TMVA::Configurable
void	EnableLooseOptions (Bool_t b=kTRUE)

const TString &	GetReferenceFile () const

Bool_t	LooseOptionCheckingEnabled () const

void	ResetSetFlag ()
	resets the IsSet flag for all declare options to be called before options are read from stream

void	WriteOptionsReferenceToFile ()
	write complete options to output stream

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 ()

Protected Attributes inherited from TMVA::FitterBase
TString	fClassName

bool *	fExitFromTraining = nullptr

IFitterTarget &	fFitterTarget

UInt_t *	fIPyCurrentIter = nullptr

UInt_t *	fIPyMaxIter = nullptr

MsgLogger *	fLogger

Int_t	fNpars

const std::vector< TMVA::Interval * >	fRanges

Protected Attributes inherited from TMVA::Configurable
MsgLogger *	fLogger
	! message logger

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

#include <TMVA/GeneticFitter.h>

Inheritance diagram for TMVA::GeneticFitter:

[legend]

Constructor & Destructor Documentation

◆ GeneticFitter()

TMVA::GeneticFitter::GeneticFitter	(	IFitterTarget &	target,
		const TString &	name,
		const std::vector< TMVA::Interval * > &	ranges,
		const TString &	theOption
	)

constructor

Definition at line 50 of file GeneticFitter.cxx.

◆ ~GeneticFitter()

virtual TMVA::GeneticFitter::~GeneticFitter ( )

inlinevirtual

Definition at line 51 of file GeneticFitter.h.

Member Function Documentation

◆ Class()

static TClass * TMVA::GeneticFitter::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TMVA::GeneticFitter::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TMVA::GeneticFitter::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 81 of file GeneticFitter.h.

◆ DeclareOptions()

void TMVA::GeneticFitter::DeclareOptions ( )

privatevirtual

declare GA options

Implements TMVA::FitterBase.

Definition at line 64 of file GeneticFitter.cxx.

◆ DeclFileName()

static const char * TMVA::GeneticFitter::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 81 of file GeneticFitter.h.

◆ IsA()

virtual TClass * TMVA::GeneticFitter::IsA ( ) const

inlinevirtual

Returns: TClass describing current object

Reimplemented from TMVA::FitterBase.

Definition at line 81 of file GeneticFitter.h.

◆ NewFitness()

Double_t TMVA::GeneticFitter::NewFitness	(	Double_t	oldF,
		Double_t	newF
	)

inline

Definition at line 63 of file GeneticFitter.h.

◆ Run()

Double_t TMVA::GeneticFitter::Run ( std::vector< Double_t > & pars )

virtual

Execute fitting.

Implements TMVA::FitterBase.

Definition at line 107 of file GeneticFitter.cxx.

◆ SetParameters()

void TMVA::GeneticFitter::SetParameters	(	Int_t	cycles,
		Int_t	nsteps,
		Int_t	popSize,
		Int_t	SC_steps,
		Int_t	SC_rate,
		Double_t	SC_factor,
		Double_t	convCrit
	)

set GA configuration parameters

Definition at line 87 of file GeneticFitter.cxx.

◆ Streamer()

virtual void TMVA::GeneticFitter::Streamer ( TBuffer & R__b )

virtual

Stream an object of class TObject.

Reimplemented from TMVA::FitterBase.

◆ StreamerNVirtual()

void TMVA::GeneticFitter::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 81 of file GeneticFitter.h.

Member Data Documentation

◆ fConvCrit

Double_t TMVA::GeneticFitter::fConvCrit

private

improvements bigger than fConvCrit are counted as "improvement"

Definition at line 75 of file GeneticFitter.h.

◆ fCycles

Int_t TMVA::GeneticFitter::fCycles

private

number of (nearly) independent calculation cycles

Definition at line 69 of file GeneticFitter.h.

◆ fNsteps

Int_t TMVA::GeneticFitter::fNsteps

private

convergence criteria: if no improvements > fConvCrit was achieved within the last fNsteps: cycle has "converged"

Definition at line 70 of file GeneticFitter.h.

◆ fPopSize

Int_t TMVA::GeneticFitter::fPopSize

private

number of individuals to start with

Definition at line 71 of file GeneticFitter.h.

◆ fSaveBestFromCycle

Int_t TMVA::GeneticFitter::fSaveBestFromCycle

private

store the best individuals from one cycle (these are included as "hints" in the last cycle of GA calculation)

Definition at line 77 of file GeneticFitter.h.

◆ fSaveBestFromGeneration

Int_t TMVA::GeneticFitter::fSaveBestFromGeneration

private

store the best individuals from one generation (these are included as "hints" in the last cycle of GA calculation)

Definition at line 76 of file GeneticFitter.h.

◆ fSC_factor

Double_t TMVA::GeneticFitter::fSC_factor

private

... with fSC_factor; if there were less improvements: divide by that factor; if there were exactly fSC_rate improvements, dont change anything

Definition at line 74 of file GeneticFitter.h.

◆ fSC_rate

Int_t TMVA::GeneticFitter::fSC_rate

private

... fSC_rate improvements, than multiply the sigma of the gaussian which defines how the random numbers are generated ...

Definition at line 73 of file GeneticFitter.h.

◆ fSC_steps

Int_t TMVA::GeneticFitter::fSC_steps

private

regulates how strong the mutations for the coordinates are: if within fSC_steps there were more than...

Definition at line 72 of file GeneticFitter.h.

◆ fSeed

UInt_t TMVA::GeneticFitter::fSeed

private

Seed for the random generator (0 takes random seeds)

Definition at line 79 of file GeneticFitter.h.

◆ fTrim

Bool_t TMVA::GeneticFitter::fTrim

private

take care, that the number of individuals is less fPopSize (trimming is done after the fitness of the individuals is assessed)

Definition at line 78 of file GeneticFitter.h.

Libraries for TMVA::GeneticFitter:

[legend]

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

tmva/tmva/inc/TMVA/GeneticFitter.h
tmva/tmva/src/GeneticFitter.cxx

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ GeneticFitter()

◆ ~GeneticFitter()

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclareOptions()

◆ DeclFileName()

◆ IsA()

◆ NewFitness()

◆ Run()

◆ SetParameters()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fConvCrit

◆ fCycles

◆ fNsteps

◆ fPopSize

◆ fSaveBestFromCycle

◆ fSaveBestFromGeneration

◆ fSC_factor

◆ fSC_rate

◆ fSC_steps

◆ fSeed

◆ fTrim