Special numeric integrator that can handle integrals over open domains.

To this end the range is cut in up three pieces: [-inf,-1],[-1,+1] and [+1,inf] and the outer two pieces, if required are calculated using a 1/x transform

Definition at line 25 of file RooImproperIntegrator1D.h.

Public Member Functions
	RooImproperIntegrator1D ()
	Default constructor. More...

	RooImproperIntegrator1D (const RooAbsFunc &function)
	Constructor with function binding. More...

	RooImproperIntegrator1D (const RooAbsFunc &function, const RooNumIntConfig &config)
	Constructor with function binding and configuration object. More...

	RooImproperIntegrator1D (const RooAbsFunc &function, Double_t xmin, Double_t xmax, const RooNumIntConfig &config)
	Constructor with function binding, definition of integration range and configuration object. More...

virtual RooAbsIntegrator *	clone (const RooAbsFunc &function, const RooNumIntConfig &config) const
	Return clone of integrator with given function and configuration. Needed by RooNumIntFactory. More...

virtual	~RooImproperIntegrator1D ()
	Destructor. More...

virtual Bool_t	checkLimits () const
	Check if the limits are valid. More...

Bool_t	setLimits (Double_t xmin, Double_t xmax)
	Change our integration limits. More...

virtual Bool_t	setUseIntegrandLimits (Bool_t flag)
	Interface function that allows to defer limit definition to integrand definition. More...

virtual Double_t	integral (const Double_t *yvec=0)
	Calculate the integral at the given parameter values of the function binding. More...

virtual Bool_t	canIntegrate1D () const

virtual Bool_t	canIntegrate2D () const

virtual Bool_t	canIntegrateND () const

virtual Bool_t	canIntegrateOpenEnded () const

Public Member Functions inherited from RooAbsIntegrator
	RooAbsIntegrator ()
	Default constructor. More...

	RooAbsIntegrator (const RooAbsFunc &function, Bool_t printEvalCounter=kFALSE)
	Copy constructor. More...

virtual	~RooAbsIntegrator ()

Bool_t	isValid () const

Double_t	integrand (const Double_t x[]) const

const RooAbsFunc *	integrand () const

Double_t	calculate (const Double_t *yvec=0)
	Calculate integral value with given array of parameter values. More...

Bool_t	printEvalCounter () const

void	setPrintEvalCounter (Bool_t value)

virtual Bool_t	setLimits (Double_t xmin, Double_t xmax)
	Interface to set limits on integration. More...

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)
	TObject copy ctor. More...

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

virtual	~TObject ()
	TObject destructor. More...

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

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

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

virtual void	Clear (Option_t *="")

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

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

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

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

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

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

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

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current pad. More...

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

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

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

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

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

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

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

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

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

virtual Option_t *	GetOption () const

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

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

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

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

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

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

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

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

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

virtual Bool_t	IsSortable () const

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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

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

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

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

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

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

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

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

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

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

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

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

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

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

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

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

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

void	operator delete (void *ptr)
	Operator delete. More...

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

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

void	SetBit (UInt_t f)

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

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

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

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

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

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

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

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). More...

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

Protected Types
enum	LimitsCase { Invalid, ClosedBothEnds, OpenBothEnds, OpenBelowSpansZero, OpenBelow, OpenAboveSpansZero, OpenAbove }

Protected Member Functions
void	initialize (const RooAbsFunc *function=0)
	Initialize the integrator, construct and initialize subintegrators. More...

LimitsCase	limitsCase () const
	Classify the type of limits we have: OpenBothEnds,ClosedBothEnds,OpenBelow or OpenAbove. More...

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Static Protected Member Functions
static void	registerIntegrator (RooNumIntFactory &fact)
	Register RooImproperIntegrator1D, its parameters and capabilities with RooNumIntFactory. More...

Protected Attributes
LimitsCase	_case

Double_t	_xmin

Double_t	_xmax

Bool_t	_useIntegrandLimits

RooAbsFunc *	_origFunc

RooInvTransform *	_function

RooNumIntConfig	_config

RooIntegrator1D *	_integrator1

RooIntegrator1D *	_integrator2

RooIntegrator1D *	_integrator3

Protected Attributes inherited from RooAbsIntegrator
const RooAbsFunc *	_function

Bool_t	_valid

Bool_t	_printEvalCounter

Friends
class	RooNumIntFactory

Additional Inherited Members
Public Types inherited from TObject
enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

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

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

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

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

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

#include <RooImproperIntegrator1D.h>

Inheritance diagram for RooImproperIntegrator1D:

[legend]

Member Enumeration Documentation

enum RooImproperIntegrator1D::LimitsCase

protected

Enumerator
Invalid
ClosedBothEnds
OpenBothEnds
OpenBelowSpansZero
OpenBelow
OpenAboveSpansZero
OpenAbove

Definition at line 53 of file RooImproperIntegrator1D.h.

Constructor & Destructor Documentation

RooImproperIntegrator1D::RooImproperIntegrator1D ( )

Default constructor.

Definition at line 66 of file RooImproperIntegrator1D.cxx.

Referenced by clone().

RooImproperIntegrator1D::RooImproperIntegrator1D ( const RooAbsFunc & function )

Constructor with function binding.

The integration range is taken from the definition in the function binding

Definition at line 77 of file RooImproperIntegrator1D.cxx.

RooImproperIntegrator1D::RooImproperIntegrator1D	(	const RooAbsFunc &	function,
		const RooNumIntConfig &	config
	)

Constructor with function binding and configuration object.

The integration range is taken from the definition in the function binding

Definition at line 95 of file RooImproperIntegrator1D.cxx.

RooImproperIntegrator1D::RooImproperIntegrator1D	(	const RooAbsFunc &	function,
		Double_t	xmin,
		Double_t	xmax,
		const RooNumIntConfig &	config
	)

Constructor with function binding, definition of integration range and configuration object.

Definition at line 113 of file RooImproperIntegrator1D.cxx.

RooImproperIntegrator1D::~RooImproperIntegrator1D ( )

virtual

Destructor.

Definition at line 211 of file RooImproperIntegrator1D.cxx.

Member Function Documentation

virtual Bool_t RooImproperIntegrator1D::canIntegrate1D ( ) const

inlinevirtual

Implements RooAbsIntegrator.

Definition at line 41 of file RooImproperIntegrator1D.h.

virtual Bool_t RooImproperIntegrator1D::canIntegrate2D ( ) const

inlinevirtual

Implements RooAbsIntegrator.

Definition at line 42 of file RooImproperIntegrator1D.h.

virtual Bool_t RooImproperIntegrator1D::canIntegrateND ( ) const

inlinevirtual

Implements RooAbsIntegrator.

Definition at line 43 of file RooImproperIntegrator1D.h.

virtual Bool_t RooImproperIntegrator1D::canIntegrateOpenEnded ( ) const

inlinevirtual

Implements RooAbsIntegrator.

Definition at line 44 of file RooImproperIntegrator1D.h.

Bool_t RooImproperIntegrator1D::checkLimits ( ) const

virtual

Check if the limits are valid.

For this integrator all limit configurations are valid, but if the limits change between two calculate() calls it may be necessary to reconfigure (e.g. if an open ended range becomes a closed range

Reimplemented from RooAbsIntegrator.

Definition at line 244 of file RooImproperIntegrator1D.cxx.

Referenced by setLimits().

RooAbsIntegrator * RooImproperIntegrator1D::clone	(	const RooAbsFunc &	function,
		const RooNumIntConfig &	config
	)		const

virtual

Return clone of integrator with given function and configuration. Needed by RooNumIntFactory.

Implements RooAbsIntegrator.

Definition at line 133 of file RooImproperIntegrator1D.cxx.

void RooImproperIntegrator1D::initialize ( const RooAbsFunc * function = 0 )

protected

Initialize the integrator, construct and initialize subintegrators.

Definition at line 143 of file RooImproperIntegrator1D.cxx.

Referenced by checkLimits(), and RooImproperIntegrator1D().

Double_t RooImproperIntegrator1D::integral ( const Double_t * yvec = 0 )

virtual

Calculate the integral at the given parameter values of the function binding.

Implements RooAbsIntegrator.

Definition at line 333 of file RooImproperIntegrator1D.cxx.

RooImproperIntegrator1D::LimitsCase RooImproperIntegrator1D::limitsCase ( ) const

protected

Classify the type of limits we have: OpenBothEnds,ClosedBothEnds,OpenBelow or OpenAbove.

Definition at line 290 of file RooImproperIntegrator1D.cxx.

Referenced by checkLimits(), and initialize().

void RooImproperIntegrator1D::registerIntegrator ( RooNumIntFactory & fact )

staticprotected

Register RooImproperIntegrator1D, its parameters and capabilities with RooNumIntFactory.

Definition at line 55 of file RooImproperIntegrator1D.cxx.

Referenced by RooNumIntFactory::RooNumIntFactory().

Bool_t RooImproperIntegrator1D::setLimits	(	Double_t *	xmin,
		Double_t *	xmax
	)

virtual

Change our integration limits.

Return kTRUE if the new limits are ok, or otherwise kFALSE. Always returns kFALSE and does nothing if this object was constructed to always use our integrand's limits.

Reimplemented from RooAbsIntegrator.

Definition at line 225 of file RooImproperIntegrator1D.cxx.

virtual Bool_t RooImproperIntegrator1D::setUseIntegrandLimits ( Bool_t flag )

inlinevirtual

Interface function that allows to defer limit definition to integrand definition.

Reimplemented from RooAbsIntegrator.

Definition at line 38 of file RooImproperIntegrator1D.h.