RooCompositeDataStore combines several disjunct datasets into one.

This is useful for simultaneous PDFs that do not depend on the same observable such as a PDF depending on x combined with another one depending on y. The composite storage will store two different datasets, {x} and {y}, but they can be passed as a single dataset to RooFit operations. A category tag will define which dataset has to be passed to which likelihood.

When iterated from start to finish, datasets will be traversed in the order of the category index.

Definition at line 33 of file RooCompositeDataStore.h.

Public Member Functions
	RooCompositeDataStore ()

	RooCompositeDataStore (const RooCompositeDataStore &other, const char *newname=nullptr)
	Convert map by label to map by index for more efficient internal use.

	RooCompositeDataStore (const RooCompositeDataStore &other, const RooArgSet &vars, const char *newname=nullptr)
	Update index category pointer, if it is contained in input argument vars.

	RooCompositeDataStore (RooStringView name, RooStringView title, const RooArgSet &vars, RooCategory &indexCat, std::map< std::string, RooAbsDataStore * > const &inputData)
	Convert map by label to map by index for more efficient internal use.

	~RooCompositeDataStore () override
	Destructor.

RooAbsArg *	addColumn (RooAbsArg &var, bool adjustRange=true) override
	WVE ownership issue here!! Caller (a RooAbsData) should take ownership of all arguments, but only does for the first one here...

void	append (RooAbsDataStore &other) override

void	attachBuffers (const RooArgSet &extObs) override

void	cacheArgs (const RooAbsArg owner, RooArgSet &varSet, const RooArgSet nset=nullptr, bool skipZeroWeights=false) override

const RooAbsArg *	cacheOwner () override

bool	changeObservableName (const char from, const char to) override
	Change name of internal observable named 'from' into 'to'.

RooAbsDataStore *	clone (const char *newname=nullptr) const override

RooAbsDataStore *	clone (const RooArgSet &vars, const char *newname=nullptr) const override

void	dump () override

Int_t	fill () override
	Forward fill request to appropriate subset.

void	forceCacheUpdate () override

virtual const RooArgSet *	get () const

const RooArgSet *	get (Int_t index) const override
	Load the n-th data point (n='idx') in memory and return a pointer to the internal RooArgSet holding its coordinates.

virtual const RooArgSet *	get (Int_t index) const=0

RooAbsData::RealSpans	getBatches (std::size_t first, std::size_t len) const override
	Retrieve batches for all observables in this data store.

std::span< const double >	getWeightBatch (std::size_t first, std::size_t len) const override
	Get the weights of the events in the range [first, first+len).

bool	hasFilledCache () const override

RooCategory *	index ()

TClass *	IsA () const override

bool	isWeighted () const override

void	loadValues (const RooAbsDataStore tds, const RooFormulaVar select=nullptr, const char *rangeName=nullptr, std::size_t nStart=0, std::size_t nStop=std::numeric_limits< std::size_t >::max()) override

RooAbsDataStore *	merge (const RooArgSet &allvars, std::list< RooAbsDataStore * > dstoreList) override

Int_t	numEntries () const override

void	recalculateCache (const RooArgSet *, Int_t, Int_t, Int_t, bool) override
	Forward recalculate request to all subsets.

std::unique_ptr< RooAbsDataStore >	reduce (RooStringView name, RooStringView title, const RooArgSet &vars, const RooFormulaVar cutVar, const char cutRange, std::size_t nStart, std::size_t nStop) override

void	reset () override

void	resetBuffers () override

void	resetCache () override

void	setArgStatus (const RooArgSet &set, bool active) override

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

double	sumEntries () const override
	Forward fill request to appropriate subset.

double	weight () const override

virtual double	weight () const=0

double	weight (Int_t index) const

void	weightError (double &lo, double &hi, RooAbsData::ErrorType etype=RooAbsData::Poisson) const override

double	weightError (RooAbsData::ErrorType etype=RooAbsData::Poisson) const override

Public Member Functions inherited from RooAbsDataStore
	RooAbsDataStore ()

	RooAbsDataStore (const RooAbsDataStore &other, const char *newname=nullptr)

	RooAbsDataStore (const RooAbsDataStore &other, const RooArgSet &vars, const char *newname=nullptr)

	RooAbsDataStore (RooStringView name, RooStringView title, const RooArgSet &vars)

RooArgSet *	addColumns (const RooArgList &varList)

const RooArgSet &	cachedVars () const

virtual void	checkInit () const

int	defaultPrintContents (Option_t *) const override
	Define default print options, for a given print style.

bool	dirtyProp () const

virtual RooAbsData::CategorySpans	getCategoryBatches (std::size_t, std::size_t) const

void	Print (Option_t *options=nullptr) const override
	This method must be overridden when a class wants to print itself.

void	printArgs (std::ostream &os) const override
	Print argument of dataset, i.e. the observable names.

void	printClassName (std::ostream &os) const override
	Print class name of dataset.

void	printMultiline (std::ostream &os, Int_t content, bool verbose, TString indent) const override
	Detailed printing interface.

void	printName (std::ostream &os) const override
	Print name of dataset.

void	printTitle (std::ostream &os) const override
	Print title of dataset.

void	printValue (std::ostream &os) const override
	Print value of the dataset, i.e. the sum of weights contained in the dataset.

virtual void	setDirtyProp (bool flag)

virtual void	setExternalWeightArray (const double , const double , const double , const double )

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual const TTree *	tree () const

double	weight (Int_t index) const

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.

Public Member Functions inherited from RooPrintable
	RooPrintable ()

virtual	~RooPrintable ()

virtual StyleOption	defaultPrintStyle (Option_t *opt) const

virtual void	printAddress (std::ostream &os) const
	Print class name of object.

virtual void	printExtras (std::ostream &os) const
	Interface to print extras of object.

virtual void	printStream (std::ostream &os, Int_t contents, StyleOption style, TString indent="") const
	Print description of object on ostream, printing contents set by contents integer, which is interpreted as an OR of 'enum ContentsOptions' values and in the style given by 'enum StyleOption'.

virtual void	printTree (std::ostream &os, TString indent="") const
	Interface for tree structure printing of object.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

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 RooAbsDataStore
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.

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

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static std::ostream &	defaultPrintStream (std::ostream *os=nullptr)
	Return a reference to the current default stream to use in Print().

static void	nameFieldLength (Int_t newLen)
	Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount.

Protected Member Functions
void	attachCache (const RooAbsArg *newOwner, const RooArgSet &cachedVars) override
	Initialize cache of dataset: attach variables of cache ArgSet to the corresponding TTree branches.

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
Int_t	_curIndex = 0
	! Index associated with current event

RooAbsDataStore *	_curStore = nullptr
	! Datastore associated with current event

std::map< Int_t, RooAbsDataStore * >	_dataMap

RooCategory *	_indexCat = nullptr

bool	_ownComps = false
	!

std::unique_ptr< std::vector< double > >	_weightBuffer
	! Buffer for weights in case a batch of values is requested.

Protected Attributes inherited from RooAbsDataStore
RooArgSet	_cachedVars

bool	_doDirtyProp = true
	Switch do (de)activate dirty state propagation when loading a data point.

RooArgSet	_vars

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

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 )) }

Public Types inherited from RooPrintable
enum	ContentsOption { kName =1 , kClassName =2 , kValue =4 , kArgs =8 , kExtras =16 , kAddress =32 , kTitle =64 , kCollectionHeader =128 }

enum	StyleOption { kInline =1 , kSingleLine =2 , kStandard =3 , kVerbose =4 , kTreeStructure =5 }

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

Static Protected Attributes inherited from RooPrintable
static Int_t	_nameLength

#include <RooCompositeDataStore.h>

Inheritance diagram for RooCompositeDataStore:

[legend]

Constructor & Destructor Documentation

◆ RooCompositeDataStore() [1/4]

RooCompositeDataStore::RooCompositeDataStore ( )

Definition at line 49 of file RooCompositeDataStore.cxx.

◆ RooCompositeDataStore() [2/4]

RooCompositeDataStore::RooCompositeDataStore	(	RooStringView	name,
		RooStringView	title,
		const RooArgSet &	vars,
		RooCategory &	indexCat,
		std::map< std::string, RooAbsDataStore * > const &	inputData
	)

Convert map by label to map by index for more efficient internal use.

Definition at line 59 of file RooCompositeDataStore.cxx.

◆ RooCompositeDataStore() [3/4]

RooCompositeDataStore::RooCompositeDataStore	(	const RooCompositeDataStore &	other,
		const char *	newname = `nullptr`
	)

Convert map by label to map by index for more efficient internal use.

Definition at line 75 of file RooCompositeDataStore.cxx.

◆ RooCompositeDataStore() [4/4]

RooCompositeDataStore::RooCompositeDataStore	(	const RooCompositeDataStore &	other,
		const RooArgSet &	vars,
		const char *	newname = `nullptr`
	)

Update index category pointer, if it is contained in input argument vars.

Definition at line 89 of file RooCompositeDataStore.cxx.

◆ ~RooCompositeDataStore()

RooCompositeDataStore::~RooCompositeDataStore ( )

override

Destructor.

Definition at line 111 of file RooCompositeDataStore.cxx.

Member Function Documentation

◆ addColumn()

RooAbsArg * RooCompositeDataStore::addColumn	(	RooAbsArg &	var,
		bool	adjustRange = `true`
	)

overridevirtual

WVE ownership issue here!! Caller (a RooAbsData) should take ownership of all arguments, but only does for the first one here...

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ RooCompositeDataStore() [1/4]

◆ RooCompositeDataStore() [2/4]

◆ RooCompositeDataStore() [3/4]

◆ RooCompositeDataStore() [4/4]

◆ ~RooCompositeDataStore()

Member Function Documentation

◆ addColumn()

◆ append()

◆ attachBuffers()

◆ attachCache()

◆ cacheArgs()

◆ cacheOwner()

◆ changeObservableName()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ clone() [1/2]

◆ clone() [2/2]

◆ DeclFileName()

◆ dump()

◆ fill()

◆ forceCacheUpdate()

◆ get() [1/3]

◆ get() [2/3]

◆ get() [3/3]

◆ getBatches()

◆ getWeightBatch()

◆ hasFilledCache()

◆ index()

◆ IsA()

◆ isWeighted()

◆ loadValues()

◆ merge()

◆ numEntries()

◆ recalculateCache()

◆ reduce()

◆ reset()

◆ resetBuffers()

◆ resetCache()

◆ setArgStatus()

◆ Streamer()

◆ StreamerNVirtual()

◆ sumEntries()

◆ weight() [1/3]

◆ weight() [2/3]

◆ weight() [3/3]

◆ weightError() [1/2]

◆ weightError() [2/2]

Member Data Documentation

◆ _curIndex

◆ _curStore

◆ _dataMap

◆ _indexCat

◆ _ownComps

◆ _weightBuffer