A space to attach TBranches.

RooAbsCategory is the base class for objects that represent a discrete value with a finite number of states.

Each state is denoted by an integer and a name. Both can be used to retrieve and set states, but referring to states by index is more efficient. Conversion between index and name can be done using lookupName() or lookupIndex(). It is possible to iterate through all defined states using begin() and end().

For category classes deriving from RooAbsCategory, states can only be evaluated, i.e., queried. Refer to RooAbsCategoryLValue and its derived classes for categories where states can also be set. The simplest category class whose states can be set, queried and saved in a dataset, refer to RooCategory.

Interface change in ROOT-6.22

Category data were based in the class RooCatType, holding an index state and a category name truncated to 256 characters. This wastes 64 bytes of storage space per entry, and prevents fast retrieval of category data. Since ROOT-6.22, categories are only represented by an integer. RooAbsCategory::lookupName() can be used to retrieve the corresponding state name. There is no limit for the length of the state name.

To not break old code, the old RooCatType interfaces are still available. Whenever possible, the following replacements should be used:

lookupType() \( \rightarrow \) lookupName() / lookupIndex()
typeIterator() \( \rightarrow \) range-based for loop / begin() / end()
isValidIndex(Int_t index) \( \rightarrow \) hasIndex()
isValid(const RooCatType&) \( \rightarrow \) hasIndex() / hasLabel()

Definition at line 33 of file RooAbsCategory.h.

Public Types
using	value_type = int
	The type used to denote a specific category state.

Public Types inherited from RooAbsArg
enum	CacheMode { Always =0 , NotAdvised =1 , Never =2 }

enum	ConstOpCode { Activate =0 , DeActivate =1 , ConfigChange =2 , ValueChange =3 }

enum	OperMode { Auto =0 , AClean =1 , ADirty =2 }

using	RefCountList_t = RooSTLRefCountList< RooAbsArg >

using	RefCountListLegacyIterator_t = TIteratorToSTLInterface< RefCountList_t::Container_t >

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 }

Public Member Functions
	RooAbsCategory ()

	RooAbsCategory (const char name, const char title)
	Constructor.

	RooAbsCategory (const RooAbsCategory &other, const char *name=nullptr)
	Copy constructor, copies the registered category states from the original.

	~RooAbsCategory () override
	Destructor.

std::map< std::string, value_type >::const_iterator	begin () const
	Iterator for category state names. Points to pairs of index and name.

RooFit::OwningPtr< RooAbsArg >	createFundamental (const char *newname=nullptr) const override
	Create a RooCategory fundamental object with our properties.

Roo1DTable *	createTable (const char *label) const
	Create a table matching the shape of this category.

bool	empty () const
	If there are no states defined.

std::map< std::string, value_type >::const_iterator	end () const
	Iterator for category state names. Points to pairs of index and name.

virtual value_type	getCurrentIndex () const
	Return index number of current state.

virtual const char *	getCurrentLabel () const
	Return label string of current state.

unsigned int	getCurrentOrdinalNumber () const
	Return ordinal number of the current state.

const std::map< std::string, value_type >::value_type &	getOrdinal (unsigned int n) const
	Return name and index of the `n`th defined state.

bool	hasIndex (value_type index) const
	Check if a state with index `index` exists.

bool	hasLabel (const std::string &label) const
	Check if a state with name `label` exists.

TClass *	IsA () const override

bool	isCategory () const override

bool	isIdentical (const RooAbsArg &other, bool assumeSameType=false) const override

virtual bool	isIntegrationSafeLValue (const RooArgSet *) const

bool	isSignType (bool mustHaveZero=false) const
	Determine if category has 2 or 3 states with index values -1,0,1.

value_type	lookupIndex (const std::string &stateName) const
	Find the index number corresponding to the state name.

const std::string &	lookupName (value_type index) const
	Get the name corresponding to the given index.

bool	operator!= (const char *label)

bool	operator!= (const RooAbsArg &other)

bool	operator!= (value_type index)

bool	operator== (const char *label) const
	Equality operator with a string (compares with state label string)

bool	operator== (const RooAbsArg &other) const override
	Equality operator with another RooAbsArg.

bool	operator== (value_type index) const
	Equality operator with a integer (compares with state index number)

void	printMultiline (std::ostream &os, Int_t contents, bool verbose=false, TString indent="") const override
	Print info about this object to the specified stream.

void	printValue (std::ostream &os) const override
	Print value (label name)

bool	readFromStream (std::istream &is, bool compact, bool verbose=false) override
	Read object contents from stream (dummy for now)

std::size_t	size () const
	Number of states defined.

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	writeToStream (std::ostream &os, bool compact) const override
	Write object contents to ostream.

Public Member Functions inherited from RooAbsArg
	RooAbsArg ()
	Default constructor.

	RooAbsArg (const char name, const char title)
	Create an object with the specified name and descriptive title.

	RooAbsArg (const RooAbsArg &other, const char *name=nullptr)
	Copy constructor transfers all boolean and string properties of the original object.

	~RooAbsArg () override
	Destructor.

bool	addOwnedComponents (const RooAbsCollection &comps)
	Take ownership of the contents of 'comps'.

bool	addOwnedComponents (RooAbsCollection &&comps)
	Take ownership of the contents of 'comps'.

bool	addOwnedComponents (RooArgList &&comps)
	Take ownership of the contents of 'comps'.

template<typename... Args_t>
bool	addOwnedComponents (std::unique_ptr< Args_t >... comps)

virtual void	applyWeightSquared (bool flag)
	Disables or enables the usage of squared weights.

void	attachArgs (const RooAbsCollection &set)
	Bind this node to objects in `set`.

void	attachDataSet (const RooAbsData &set)
	Replace server nodes with names matching the dataset variable names with those data set variables, making this PDF directly dependent on the dataset.

void	attachDataStore (const RooAbsDataStore &set)
	Replace server nodes with names matching the dataset variable names with those data set variables, making this PDF directly dependent on the dataset.

const std::set< std::string > &	attributes () const

virtual bool	canComputeBatchWithCuda () const

virtual bool	checkObservables (const RooArgSet *nset) const
	Overloadable function in which derived classes can implement consistency checks of the variables.

virtual TObject *	clone (const char *newname=nullptr) const =0

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

virtual RooAbsArg *	cloneTree (const char *newname=nullptr) const
	Clone tree expression of objects.

Int_t	Compare (const TObject *other) const override
	Utility function used by TCollection::Sort to compare contained TObjects We implement comparison by name, resulting in alphabetical sorting by object name.

virtual std::unique_ptr< RooAbsArg >	compileForNormSet (RooArgSet const &normSet, RooFit::Detail::CompileContext &ctx) const

std::size_t	dataToken () const
	Returns the token for retrieving results in the BatchMode. For internal use only.

Int_t	defaultPrintContents (Option_t *opt) const override
	Define default contents to print.

bool	dependsOn (const RooAbsArg &server, const RooAbsArg *ignoreArg=nullptr, bool valueOnly=false) const
	Test whether we depend on (ie, are served by) the specified object.

bool	dependsOn (const RooAbsCollection &serverList, const RooAbsArg *ignoreArg=nullptr, bool valueOnly=false) const
	Test whether we depend on (ie, are served by) any object in the specified collection.

bool	dependsOn (TNamed const namePtr, const RooAbsArg ignoreArg=nullptr, bool valueOnly=false) const
	Test whether we depend on (ie, are served by) an object with a specific name.

bool	dependsOnValue (const RooAbsArg &server, const RooAbsArg *ignoreArg=nullptr) const
	Check whether this object depends on values served from the object passed as `server`.

bool	dependsOnValue (const RooAbsCollection &serverList, const RooAbsArg *ignoreArg=nullptr) const
	Check whether this object depends on values from an element in the `serverList`.

bool	getAttribute (const Text_t *name) const
	Check if a named attribute is set. By default, all attributes are unset.

RooFit::OwningPtr< RooArgSet >	getComponents () const
	Create a RooArgSet with all components (branch nodes) of the expression tree headed by this object.

bool	getObservables (const RooAbsCollection *depList, RooArgSet &outputSet, bool valueOnly=true) const
	Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names the args in the supplied argset.

RooFit::OwningPtr< RooArgSet >	getObservables (const RooAbsData &data) const
	Return the observables of this pdf given the observables defined by `data`.

RooFit::OwningPtr< RooArgSet >	getObservables (const RooAbsData *data) const
	Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names of the variable list of the supplied data set (the dependents).

RooFit::OwningPtr< RooArgSet >	getObservables (const RooArgSet &set, bool valueOnly=true) const
	Given a set of possible observables, return the observables that this PDF depends on.

RooFit::OwningPtr< RooArgSet >	getObservables (const RooArgSet *depList, bool valueOnly=true) const
	Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names the args in the supplied argset.

RooFit::OwningPtr< RooArgSet >	getParameters (const RooAbsData &data, bool stripDisconnected=true) const
	Return the parameters of this p.d.f when used in conjunction with dataset 'data'.

RooFit::OwningPtr< RooArgSet >	getParameters (const RooAbsData *data, bool stripDisconnected=true) const
	Create a list of leaf nodes in the arg tree starting with ourself as top node that don't match any of the names of the variable list of the supplied data set (the dependents).

RooFit::OwningPtr< RooArgSet >	getParameters (const RooArgSet &observables, bool stripDisconnected=true) const
	Return the parameters of the p.d.f given the provided set of observables.

RooFit::OwningPtr< RooArgSet >	getParameters (const RooArgSet *observables, bool stripDisconnected=true) const
	Create a list of leaf nodes in the arg tree starting with ourself as top node that don't match any of the names the args in the supplied argset.

virtual bool	getParameters (const RooArgSet *observables, RooArgSet &outputSet, bool stripDisconnected=true) const
	Fills a list with leaf nodes in the arg tree starting with ourself as top node that don't match any of the names the args in the supplied argset.

RooAbsProxy *	getProxy (Int_t index) const
	Return the nth proxy from the proxy list.

const Text_t *	getStringAttribute (const Text_t *key) const
	Get string attribute mapped under key 'key'.

bool	getTransientAttribute (const Text_t *name) const
	Check if a named attribute is set.

RooFit::OwningPtr< RooArgSet >	getVariables (bool stripDisconnected=true) const
	Return RooArgSet with all variables (tree leaf nodes of expression tree)

void	graphVizTree (const char fileName, const char delimiter="\n", bool useTitle=false, bool useLatex=false)
	Create a GraphViz .dot file visualizing the expression tree headed by this RooAbsArg object.

void	graphVizTree (std::ostream &os, const char *delimiter="\n", bool useTitle=false, bool useLatex=false)
	Write the GraphViz representation of the expression tree headed by this RooAbsArg object to the given ostream.

bool	hasClients () const

bool	hasDataToken () const

virtual bool	hasRange (const char *) const

virtual bool	importWorkspaceHook (RooWorkspace &ws)

virtual bool	inRange (const char *) const

bool	isConstant () const
	Check if the "Constant" attribute is set.

virtual bool	isDerived () const
	Does value or shape of this arg depend on any other arg?

virtual bool	isReducerNode () const

bool	IsSortable () const override

bool	localNoDirtyInhibit () const

const TNamed *	namePtr () const
	De-duplicated pointer to this object's name.

Int_t	numProxies () const
	Return the number of registered proxies.

bool	observableOverlaps (const RooAbsData *dset, const RooAbsArg &testArg) const
	Test if any of the dependents of the arg tree (as determined by getObservables) overlaps with those of the testArg.

bool	observableOverlaps (const RooArgSet *depList, const RooAbsArg &testArg) const
	Test if any of the dependents of the arg tree (as determined by getObservables) overlaps with those of the testArg.

RooAbsArg &	operator= (const RooAbsArg &other)=delete

bool	overlaps (const RooAbsArg &testArg, bool valueOnly=false) const
	Test if any of the nodes of tree are shared with that of the given tree.

const RooArgSet *	ownedComponents () const

void	Print (Option_t *options=nullptr) const override
	Print the object to the defaultPrintStream().

void	printAddress (std::ostream &os) const override
	Print address of this RooAbsArg.

void	printArgs (std::ostream &os) const override
	Print object arguments, ie its proxies.

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

void	printCompactTree (const char indent="", const char fileName=nullptr, const char namePat=nullptr, RooAbsArg client=nullptr)
	Print tree structure of expression tree on stdout, or to file if filename is specified.

void	printCompactTree (std::ostream &os, const char indent="", const char namePat=nullptr, RooAbsArg *client=nullptr)
	Print tree structure of expression tree on given ostream.

virtual void	printCompactTreeHook (std::ostream &os, const char *ind="")
	Hook function interface for object to insert additional information when printed in the context of a tree structure.

void	printComponentTree (const char indent="", const char namePat=nullptr, Int_t nLevel=999)
	Print tree structure of expression tree on given ostream, only branch nodes are printed.

void	printDirty (bool depth=true) const
	Print information about current value dirty state information.

virtual void	printMetaArgs (std::ostream &) const

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

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

void	printTree (std::ostream &os, TString indent="") const override
	Print object tree structure.

bool	recursiveCheckObservables (const RooArgSet *nset) const
	Recursively call checkObservables on all nodes in the expression tree.

void	removeStringAttribute (const Text_t *key)
	Delete a string attribute with a given key.

void	resetDataToken ()

void	setAttribute (const Text_t *name, bool value=true)
	Set (default) or clear a named boolean attribute of this object.

void	setDataToken (std::size_t index)
	Sets the token for retrieving results in the BatchMode. For internal use only.

void	setLocalNoDirtyInhibit (bool flag) const

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

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

void	setProhibitServerRedirect (bool flag)

void	setStringAttribute (const Text_t key, const Text_t value)
	Associate string 'value' to this object under key 'key'.

void	setTransientAttribute (const Text_t *name, bool value=true)
	Set (default) or clear a named boolean attribute of this object.

void	setWorkspace (RooWorkspace &ws)

const std::map< std::string, std::string > &	stringAttributes () const

const std::set< std::string > &	transientAttributes () const

virtual void	translate (RooFit::Detail::CodeSquashContext &ctx) const
	This function defines a translation for each RooAbsReal based object that can be used to express the class as simple C++ code.

RooWorkspace *	workspace () const

const RefCountList_t &	clients () const
	List of all clients of this object.

const RefCountList_t &	valueClients () const
	List of all value clients of this object. Value clients receive value updates.

const RefCountList_t &	shapeClients () const
	List of all shape clients of this object.

const RefCountList_t &	servers () const
	List of all servers of this object.

RooAbsArg *	findServer (const char *name) const
	Return server of `this` with name `name`. Returns nullptr if not found.

RooAbsArg *	findServer (const RooAbsArg &arg) const
	Return server of `this` that has the same name as `arg`. Returns `nullptr` if not found.

RooAbsArg *	findServer (Int_t index) const
	Return i-th server from server list.

bool	isValueServer (const RooAbsArg &arg) const
	Check if `this` is serving values to `arg`.

bool	isValueServer (const char *name) const
	Check if `this` is serving values to an object with name `name`.

bool	isShapeServer (const RooAbsArg &arg) const
	Check if `this` is serving shape to `arg`.

bool	isShapeServer (const char *name) const
	Check if `this` is serving shape to an object with name `name`.

void	leafNodeServerList (RooAbsCollection list, const RooAbsArg arg=nullptr, bool recurseNonDerived=false) const
	Fill supplied list with all leaf nodes of the arg tree, starting with ourself as top node.

void	branchNodeServerList (RooAbsCollection list, const RooAbsArg arg=nullptr, bool recurseNonDerived=false) const
	Fill supplied list with all branch nodes of the arg tree starting with ourself as top node.

void	treeNodeServerList (RooAbsCollection list, const RooAbsArg arg=nullptr, bool doBranch=true, bool doLeaf=true, bool valueOnly=false, bool recurseNonDerived=false) const
	Fill supplied list with nodes of the arg tree, following all server links, starting with ourself as top node.

virtual bool	isFundamental () const
	Is this object a fundamental type that can be added to a dataset? Fundamental-type subclasses override this method to return true.

virtual bool	isLValue () const
	Is this argument an l-value, i.e., can it appear on the left-hand side of an assignment expression? LValues are also special since they can potentially be analytically integrated and generated.

bool	redirectServers (const RooAbsCollection &newServerList, bool mustReplaceAll=false, bool nameChange=false, bool isRecursionStep=false)
	Replace all direct servers of this object with the new servers in `newServerList`.

bool	redirectServers (std::unordered_map< RooAbsArg , RooAbsArg > const &replacements)
	Replace some servers of this object.

bool	recursiveRedirectServers (const RooAbsCollection &newServerList, bool mustReplaceAll=false, bool nameChange=false, bool recurseInNewSet=true)
	Recursively replace all servers with the new servers in `newSet`.

virtual bool	redirectServersHook (const RooAbsCollection &newServerList, bool mustReplaceAll, bool nameChange, bool isRecursiveStep)
	Function that is called at the end of redirectServers().

virtual void	serverNameChangeHook (const RooAbsArg , const RooAbsArg )

void	addServer (RooAbsArg &server, bool valueProp=true, bool shapeProp=false, std::size_t refCount=1)
	Register another RooAbsArg as a server to us, ie, declare that we depend on it.

void	addServerList (RooAbsCollection &serverList, bool valueProp=true, bool shapeProp=false)
	Register a list of RooAbsArg as servers to us by calling addServer() for each arg in the list.

void	replaceServer (RooAbsArg &oldServer, RooAbsArg &newServer, bool valueProp, bool shapeProp)
	Replace 'oldServer' with 'newServer', specifying whether the new server has value or shape server properties.

void	changeServer (RooAbsArg &server, bool valueProp, bool shapeProp)
	Change dirty flag propagation mask for specified server.

void	removeServer (RooAbsArg &server, bool force=false)
	Unregister another RooAbsArg as a server to us, ie, declare that we no longer depend on its value and shape.

RooAbsArg *	findNewServer (const RooAbsCollection &newSet, bool nameChange) const
	Find the new server in the specified set that matches the old server.

virtual void	optimizeCacheMode (const RooArgSet &observables)
	Activate cache mode optimization with given definition of observables.

virtual void	optimizeCacheMode (const RooArgSet &observables, RooArgSet &optNodes, RooLinkedList &processedNodes)
	Activate cache mode optimization with given definition of observables.

bool	findConstantNodes (const RooArgSet &observables, RooArgSet &cacheList)
	Find branch nodes with all-constant parameters, and add them to the list of nodes that can be cached with a dataset in a test statistic calculation.

bool	findConstantNodes (const RooArgSet &observables, RooArgSet &cacheList, RooLinkedList &processedNodes)
	Find branch nodes with all-constant parameters, and add them to the list of nodes that can be cached with a dataset in a test statistic calculation.

virtual void	constOptimizeTestStatistic (ConstOpCode opcode, bool doAlsoTrackingOpt=true)
	Interface function signaling a request to perform constant term optimization.

virtual CacheMode	canNodeBeCached () const

virtual void	setCacheAndTrackHints (RooArgSet &)

bool	isShapeDirty () const

bool	isValueDirty () const

bool	isValueDirtyAndClear () const

bool	isValueOrShapeDirtyAndClear () const

void	registerCache (RooAbsCache &cache)
	Register RooAbsCache with this object.

void	unRegisterCache (RooAbsCache &cache)
	Unregister a RooAbsCache. Called from the RooAbsCache destructor.

Int_t	numCaches () const
	Return number of registered caches.

RooAbsCache *	getCache (Int_t index) const
	Return registered cache object by index.

OperMode	operMode () const
	Query the operation mode of this node.

void	setOperMode (OperMode mode, bool recurseADirty=true)
	Set the operation mode of this node.

void	setValueDirty ()
	Mark the element dirty. This forces a re-evaluation when a value is requested.

void	setShapeDirty ()
	Notify that a shape-like property (e.g. binning) has changed.

const char *	aggregateCacheUniqueSuffix () const

virtual const char *	cacheUniqueSuffix () const

void	wireAllCaches ()

RooExpensiveObjectCache &	expensiveObjectCache () const

virtual void	setExpensiveObjectCache (RooExpensiveObjectCache &cache)

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	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	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'.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()
	A buffer for reading values from trees.

static const char *	DeclFileName ()

Static Public Member Functions inherited from RooAbsArg
static void	setDirtyInhibit (bool flag)
	Control global dirty inhibit mode.

static void	verboseDirty (bool flag)
	Activate verbose messaging related to dirty flag propagation.

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	attachToTree (TTree &t, Int_t bufSize=32000) override
	Attach the category index and label as branches to the given TTree.

void	attachToVStore (RooVectorDataStore &vstore) override
	Attach the category index and label to as branches to the given vector store.

void	clearTypes ()
	Delete all currently defined states.

void	copyCache (const RooAbsArg *source, bool valueOnly=false, bool setValueDirty=true) override
	Copy the cached value from given source and raise dirty flag.

virtual const std::map< std::string, RooAbsCategory::value_type >::value_type &	defineState (const std::string &label)
	Define a new state with given label.

virtual const std::map< std::string, RooAbsCategory::value_type >::value_type &	defineState (const std::string &label, value_type index)
	Define new state with given name and index number.

void	defineStateUnchecked (const std::string &label, value_type index)
	Internal version of defineState() that does not check if type already exists.

virtual value_type	evaluate () const =0
	Evaluate the category state and return.

void	fillTreeBranch (TTree &t) override
	Fill tree branches associated with current object with current value.

bool	isValid () const override
	WVE (08/21/01) Probably obsolete now.

value_type	nextAvailableStateIndex () const

virtual void	recomputeShape ()=0
	If a category depends on the shape of others, i.e. its state numbers or names depend on the states of other categories, this function has to be implemented to recompute _stateNames and _insertionOrder.

RooCatType *	retrieveLegacyState (value_type index) const
	Return the legacy RooCatType corresponding to `index`. If it doesn't exist, create one.

void	setCachedValue (double value, bool notifyClients=true) final
	Overwrite the value stored in this object's cache.

void	setTreeBranchStatus (TTree &t, bool active) override
	(De)activate associate tree branch

std::map< std::string, value_type > &	stateNames ()
	Access the map of state names to index numbers.

const std::map< std::string, value_type > &	stateNames () const
	Access the map of state names to index numbers.

void	syncCache (const RooArgSet *set=nullptr) override
	Explicitly synchronize RooAbsCategory internal cache.

Protected Member Functions inherited from RooAbsArg
void	attachToStore (RooAbsDataStore &store)
	Attach this argument to the data store such that it reads data from there.

TString	cleanBranchName () const
	Construct a mangled name from the actual name that is free of any math symbols that might be interpreted by TTree.

void	clearShapeDirty () const

void	clearValueAndShapeDirty () const

void	clearValueDirty () const

virtual void	getObservablesHook (const RooArgSet , RooArgSet ) const

virtual void	getParametersHook (const RooArgSet , RooArgSet , bool) const

void	graphVizAddConnections (std::set< std::pair< RooAbsArg , RooAbsArg > > &)
	Utility function that inserts all point-to-point client-server connections between any two RooAbsArgs in the expression tree headed by this object in the linkSet argument.

bool	inhibitDirty () const
	Delete watch flag.

virtual void	ioStreamerPass2 ()
	Method called by workspace container to finalize schema evolution issues that cannot be handled in a single ioStreamer pass.

virtual void	operModeHook ()

virtual void	optimizeDirtyHook (const RooArgSet *)

void	printAttribList (std::ostream &os) const
	Transient boolean attributes (not copied in ctor)

void	registerProxy (RooArgProxy &proxy)
	Register an RooArgProxy in the proxy list.

void	registerProxy (RooListProxy &proxy)
	Register an RooListProxy in the proxy list.

void	registerProxy (RooSetProxy &proxy)
	Register an RooSetProxy in the proxy list.

void	setProxyNormSet (const RooArgSet *nset)
	Forward a change in the cached normalization argset to all the registered proxies.

void	setShapeDirty (const RooAbsArg *source)
	Notify that a shape-like property (e.g. binning) has changed.

void	setValueDirty (const RooAbsArg *source)
	Force element to re-evaluate itself when a value is requested.

void	unRegisterProxy (RooArgProxy &proxy)
	Remove proxy from proxy list.

void	unRegisterProxy (RooListProxy &proxy)
	Remove proxy from proxy list.

void	unRegisterProxy (RooSetProxy &proxy)
	Remove proxy from proxy list.

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 ()

Static Protected Member Functions
static const decltype(_stateNames) ::value_type &	invalidCategory ()
	A category state to signify an invalid category.

Static Protected Member Functions inherited from RooAbsArg
static void	ioStreamerPass2Finalize ()
	Method called by workspace container to finalize schema evolution issues that cannot be handled in a single ioStreamer pass.

Protected Attributes
value_type	_currentIndex {std::numeric_limits<int>::min()}
	Current category state.

std::vector< std::string >	_insertionOrder
	Keeps track in which order state numbers have been inserted. Make sure this is updated in recomputeShape().

std::map< value_type, std::unique_ptr< RooCatType, std::function< void(RooCatType *)> > >	_legacyStates
	! Map holding pointers to RooCatType instances. Only for legacy interface. Don't use if possible.

std::map< std::string, value_type >	_stateNames
	Map state names to index numbers. Make sure state names are updated in recomputeShape().

Protected Attributes inherited from RooAbsArg
std::set< std::string >	_boolAttrib

std::set< std::string >	_boolAttribTransient

std::vector< RooAbsCache * >	_cacheList

RefCountList_t	_clientList

RefCountList_t	_clientListShape

RefCountList_t	_clientListValue

std::size_t	_dataToken = std::numeric_limits<std::size_t>::max()
	In which workspace do I live, if any.

bool	_deleteWatch = false

RooExpensiveObjectCache *	_eocache {nullptr}
	Prohibit server redirects – Debugging tool.

bool	_fast = false

bool	_isConstant = false
	De-duplicated name pointer. This will be equal for all objects with the same name.

bool	_localNoInhibitDirty = false
	Cached isConstant status.

RooWorkspace *	_myws = nullptr
	Prevent 'AlwaysDirty' mode for this node.

const TNamed *	_namePtr = nullptr
	Pointer to global cache manager for any expensive components created by this object.

OperMode	_operMode = Auto

RooArgSet *	_ownedComponents = nullptr

bool	_prohibitServerRedirect = false
	Set of owned component.

RooRefArray	_proxyList

ProxyListCache	_proxyListCache

RefCountList_t	_serverList

bool	_shapeDirty = true

std::map< std::string, std::string >	_stringAttrib

bool	_valueDirty = true

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Attributes
TreeReadBuffer *	_treeReadBuffer = nullptr

Friends
class	RooVectorDataStore

Legacy interface
Previous versions of RooAbsCategory were based on RooCatType, a class containing a state and a label. It has been replaced by integers, which use less space and allow for faster access. The following part of the interface should not be used if possible. Since RooCatType in essence is only an index and a state name, equivalent functionality can be achieved using begin() and end() to iterate through pairs of <index, stateName> and by using using lookupName() and lookupIndex().
const RooCatType *	lookupType (value_type index, bool printError=false) const
	Find our type corresponding to the specified index, or return nullptr for no match.

const RooCatType *	lookupType (const char *label, bool printError=false) const
	Find our type corresponding to the specified label, or return 0 for no match.

const RooCatType *	lookupType (const RooCatType &type, bool printError=false) const
	Find our type that matches the specified type, or return 0 for no match.

TIterator *	typeIterator () const

Int_t	numTypes (const char *=nullptr) const
	Return number of types defined (in range named rangeName if rangeName!=nullptr)

Int_t	getIndex () const
	Retrieve the current index. Use getCurrentIndex() for more clarity.

const char *	getLabel () const
	Retrieve current label. Use getCurrentLabel() for more clarity.

virtual bool	isValid (const RooCatType &value) const
	Check if given state is defined for this object.

const RooCatType *	defineType (const char *label)

const RooCatType *	defineType (const char *label, int index)

const RooCatType *	defineTypeUnchecked (const char *label, value_type index)

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

Static Protected Attributes inherited from RooAbsArg
static bool	_inhibitDirty

static bool	_verboseDirty
	cache of the list of proxies. Avoids type casting.

Static Protected Attributes inherited from RooPrintable
static Int_t	_nameLength

#include <RooAbsCategory.h>

Inheritance diagram for RooAbsCategory:

[legend]

Member Typedef Documentation

◆ value_type

using RooAbsCategory::value_type = int

The type used to denote a specific category state.

Definition at line 36 of file RooAbsCategory.h.

Constructor & Destructor Documentation

◆ RooAbsCategory() [1/3]

RooAbsCategory::RooAbsCategory ( )

Definition at line 76 of file RooAbsCategory.cxx.

◆ RooAbsCategory() [2/3]

RooAbsCategory::RooAbsCategory	(	const char *	name,
		const char *	title
	)

Constructor.

Definition at line 82 of file RooAbsCategory.cxx.

◆ RooAbsCategory() [3/3]

RooAbsCategory::RooAbsCategory	(	const RooAbsCategory &	other,
		const char *	name = `nullptr`
	)

Copy constructor, copies the registered category states from the original.

Definition at line 94 of file RooAbsCategory.cxx.

◆ ~RooAbsCategory()

RooAbsCategory::~RooAbsCategory ( )

override

Destructor.

Definition at line 108 of file RooAbsCategory.cxx.

Member Function Documentation

◆ attachToTree()

void RooAbsCategory::attachToTree	(	TTree &	tree,
		Int_t	bufSize = `32000`
	)

overrideprotectedvirtual

Attach the category index and label as branches to the given TTree.

The index field will be attached as integer with name <name>_idx. If a branch <name> exists, it attaches to this branch.

Implements RooAbsArg.

Definition at line 449 of file RooAbsCategory.cxx.

◆ attachToVStore()

void RooAbsCategory::attachToVStore ( RooVectorDataStore & vstore )

overrideprotectedvirtual

Attach the category index and label to as branches to the given vector store.

Implements RooAbsArg.

Definition at line 436 of file RooAbsCategory.cxx.

◆ begin()

std::map< std::string, value_type >::const_iterator RooAbsCategory::begin ( ) const

inline

Iterator for category state names. Points to pairs of index and name.

Definition at line 91 of file RooAbsCategory.h.

◆ Class()

static TClass * RooAbsCategory::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * RooAbsCategory::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t RooAbsCategory::Class_Version ( )

inlinestaticconstexpr

A buffer for reading values from trees.

Returns: Version of this class

Definition at line 226 of file RooAbsCategory.h.

◆ clearTypes()

void RooAbsCategory::clearTypes ( )

protected

Delete all currently defined states.

Definition at line 277 of file RooAbsCategory.cxx.

◆ copyCache()

void RooAbsCategory::copyCache	(	const RooAbsArg *	source,
		bool	valueOnly = `false`,
		bool	setValDirty = `true`
	)

overrideprotectedvirtual

Copy the cached value from given source and raise dirty flag.

It is the callers responsibility to ensure that the sources cache is clean(valid) before this function is called, e.g. by calling syncCache() on the source.

Implements RooAbsArg.

Reimplemented in RooAbsCategoryLValue.

Definition at line 560 of file RooAbsCategory.cxx.

◆ createFundamental()

RooFit::OwningPtr< RooAbsArg > RooAbsCategory::createFundamental ( const char * newname = nullptr ) const

overridevirtual

Create a RooCategory fundamental object with our properties.

Implements RooAbsArg.

Definition at line 642 of file RooAbsCategory.cxx.

◆ createTable()

Roo1DTable * RooAbsCategory::createTable ( const char * label ) const

Create a table matching the shape of this category.

Definition at line 371 of file RooAbsCategory.cxx.

◆ DeclFileName()

static const char * RooAbsCategory::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 226 of file RooAbsCategory.h.

◆ defineState() [1/2]

const std::map< std::string, RooAbsCategory::value_type >::value_type & RooAbsCategory::defineState ( const std::string & label )

protectedvirtual

Define a new state with given label.

The next available integer is assigned as index value.

Definition at line 220 of file RooAbsCategory.cxx.

◆ defineState() [2/2]

const std::map< std::string, RooAbsCategory::value_type >::value_type & RooAbsCategory::defineState	(	const std::string &	label,
		RooAbsCategory::value_type	index
	)

protectedvirtual

Define new state with given name and index number.

Definition at line 245 of file RooAbsCategory.cxx.

◆ defineStateUnchecked()

void RooAbsCategory::defineStateUnchecked	(	const std::string &	label,
		RooAbsCategory::value_type	index
	)

protected

Internal version of defineState() that does not check if type already exists.

Definition at line 229 of file RooAbsCategory.cxx.

◆ defineType() [1/2]

const RooCatType * RooAbsCategory::defineType ( const char * label )

protected

Deprecated:: Use defineState(const std::string& label)

Definition at line 682 of file RooAbsCategory.cxx.

◆ defineType() [2/2]

const RooCatType * RooAbsCategory::defineType	(	const char *	label,
		int	index
	)

protected

Deprecated:: Use defineState(const std::string& label, value_type index)

Definition at line 687 of file RooAbsCategory.cxx.

◆ defineTypeUnchecked()

const RooCatType * RooAbsCategory::defineTypeUnchecked	(	const char *	label,
		value_type	index
	)

protected

Deprecated:: Use defineStateUnchecked(const std::string& label, value_type index)

Definition at line 692 of file RooAbsCategory.cxx.

◆ empty()

bool RooAbsCategory::empty ( ) const

inline

If there are no states defined.

Definition at line 103 of file RooAbsCategory.h.

◆ end()

std::map< std::string, value_type >::const_iterator RooAbsCategory::end ( ) const

inline

Iterator for category state names. Points to pairs of index and name.

Definition at line 95 of file RooAbsCategory.h.

◆ evaluate()

virtual value_type RooAbsCategory::evaluate ( ) const

protectedpure virtual

Evaluate the category state and return.

The returned state index should correspond to a state name that has been defined via e.g. defineType().

Implemented in RooBinningCategory, RooCategory, RooMappedCategory, RooMultiCategory, RooSuperCategory, and RooThresholdCategory.

◆ fillTreeBranch()

void RooAbsCategory::fillTreeBranch ( TTree & t )

overrideprotectedvirtual

Fill tree branches associated with current object with current value.

Implements RooAbsArg.

Definition at line 517 of file RooAbsCategory.cxx.

◆ getCurrentIndex()

RooAbsCategory::value_type RooAbsCategory::getCurrentIndex ( ) const

virtual

Return index number of current state.

Reimplemented in RooCategory.

Definition at line 121 of file RooAbsCategory.cxx.

◆ getCurrentLabel()

const char * RooAbsCategory::getCurrentLabel ( ) const

virtual

Return label string of current state.

Reimplemented in RooMultiCategory.

Definition at line 137 of file RooAbsCategory.cxx.

◆ getCurrentOrdinalNumber()

unsigned int RooAbsCategory::getCurrentOrdinalNumber ( ) const

Return ordinal number of the current state.

Definition at line 618 of file RooAbsCategory.cxx.

◆ getIndex()

Int_t RooAbsCategory::getIndex ( ) const

inline

Retrieve the current index. Use getCurrentIndex() for more clarity.

Definition at line 133 of file RooAbsCategory.h.

◆ getLabel()

const char * RooAbsCategory::getLabel ( ) const

inline

Retrieve current label. Use getCurrentLabel() for more clarity.

Definition at line 135 of file RooAbsCategory.h.

◆ getOrdinal()

const std::map< std::string, RooAbsCategory::value_type >::value_type & RooAbsCategory::getOrdinal ( unsigned int n ) const

Return name and index of the nth defined state.

When states are defined using defineType() or operator[], the order of insertion is tracked, to mimic the behaviour before modernising the category classes. When directly manipulating the map with state names using states(), the order of insertion is not known, so alphabetical ordering as usual for std::map is used. The latter is faster.

Parameters

[in] n Number of state to be retrieved.

Returns: A pair with name and index.

Definition at line 598 of file RooAbsCategory.cxx.

◆ hasIndex()

bool RooAbsCategory::hasIndex ( RooAbsCategory::value_type index ) const

Check if a state with index index exists.

Definition at line 195 of file RooAbsCategory.cxx.

◆ hasLabel()

bool RooAbsCategory::hasLabel ( const std::string & label ) const

inline

Check if a state with name label exists.

Definition at line 60 of file RooAbsCategory.h.

◆ invalidCategory()

decltype(RooAbsCategory::_stateNames) const ::value_type & RooAbsCategory::invalidCategory ( )

staticprotected

A category state to signify an invalid category.

The category name is empty, the index is the minimal int.

Definition at line 70 of file RooAbsCategory.cxx.

◆ IsA()

TClass * RooAbsCategory::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Reimplemented in RooAbsCategoryLValue, RooBinningCategory, RooCategory, RooMappedCategory, RooMultiCategory, RooSuperCategory, and RooThresholdCategory.

Definition at line 226 of file RooAbsCategory.h.

◆ isCategory()

bool RooAbsCategory::isCategory ( ) const

inlineoverridevirtual

Reimplemented from RooAbsArg.

Definition at line 107 of file RooAbsCategory.h.

◆ isIdentical()

bool RooAbsCategory::isIdentical	(	const RooAbsArg &	other,
		bool	assumeSameType = `false`
	)		const

overridevirtual

Implements RooAbsArg.

Definition at line 182 of file RooAbsCategory.cxx.

◆ isIntegrationSafeLValue()

virtual bool RooAbsCategory::isIntegrationSafeLValue ( const RooArgSet * ) const

inlinevirtual

Definition at line 83 of file RooAbsCategory.h.

◆ isSignType()

bool RooAbsCategory::isSignType ( bool mustHaveZero = false ) const

Determine if category has 2 or 3 states with index values -1,0,1.

Definition at line 660 of file RooAbsCategory.cxx.

◆ isValid() [1/2]

bool RooAbsCategory::isValid ( ) const

inlineoverrideprotectedvirtual

WVE (08/21/01) Probably obsolete now.

Reimplemented from RooAbsArg.

Definition at line 192 of file RooAbsCategory.h.

◆ isValid() [2/2]

bool RooAbsCategory::isValid ( const RooCatType & value ) const

protectedvirtual

Check if given state is defined for this object.

Definition at line 361 of file RooAbsCategory.cxx.

◆ lookupIndex()

RooAbsCategory::value_type RooAbsCategory::lookupIndex ( const std::string & stateName ) const

Find the index number corresponding to the state name.

See also: hasLabel() for checking if a given label has been defined.

Returns: Index of the category or std::numeric_limits<int>::min() on failure.

Definition at line 290 of file RooAbsCategory.cxx.

◆ lookupName()

const std::string & RooAbsCategory::lookupName ( value_type index ) const

Get the name corresponding to the given index.

Look up the name corresponding to the given index.

Returns: Name or empty string if index is invalid.

Definition at line 208 of file RooAbsCategory.cxx.

◆ lookupType() [1/3]

const RooCatType * RooAbsCategory::lookupType	(	const char *	label,
		bool	printError = `false`
	)		const

Find our type corresponding to the specified label, or return 0 for no match.

Deprecated:: RooCatType is not used, any more. This function will create one and let it leak. Use lookupIndex() (preferred) or lookupName() instead.

Definition at line 336 of file RooAbsCategory.cxx.

◆ lookupType() [2/3]

const RooCatType * RooAbsCategory::lookupType	(	const RooCatType &	other,
		bool	printError = `false`
	)		const

Find our type that matches the specified type, or return 0 for no match.

Deprecated:: RooCatType is not used, any more. This function will create one and let it leak. Use lookupIndex() (preferred) or lookupName() instead.

Definition at line 303 of file RooAbsCategory.cxx.

◆ lookupType() [3/3]

const RooCatType * RooAbsCategory::lookupType	(	RooAbsCategory::value_type	index,
		bool	printError = `false`
	)		const

Find our type corresponding to the specified index, or return nullptr for no match.

Deprecated:: RooCatType is not used, any more. This function will create one and let it leak. Use lookupIndex() (preferred) or lookupName() instead.

Definition at line 314 of file RooAbsCategory.cxx.

◆ nextAvailableStateIndex()

RooAbsCategory::value_type RooAbsCategory::nextAvailableStateIndex ( ) const

protected

Definition at line 709 of file RooAbsCategory.cxx.

◆ numTypes()

Int_t RooAbsCategory::numTypes ( const char * = nullptr ) const

inline

Return number of types defined (in range named rangeName if rangeName!=nullptr)

Definition at line 129 of file RooAbsCategory.h.

◆ operator!=() [1/3]

bool RooAbsCategory::operator!= ( const char * label )

inline

Definition at line 54 of file RooAbsCategory.h.

◆ operator!=() [2/3]

bool RooAbsCategory::operator!= ( const RooAbsArg & other )

inline

Definition at line 56 of file RooAbsCategory.h.

◆ operator!=() [3/3]

bool RooAbsCategory::operator!= ( value_type index )

inline

Definition at line 52 of file RooAbsCategory.h.

◆ operator==() [1/3]

bool RooAbsCategory::operator== ( const char * label ) const

Equality operator with a string (compares with state label string)

Definition at line 162 of file RooAbsCategory.cxx.

◆ operator==() [2/3]

bool RooAbsCategory::operator== ( const RooAbsArg & other ) const

overridevirtual

Equality operator with another RooAbsArg.

Only functional is also a RooAbsCategory, will return true if index is the same

Implements RooAbsArg.

Definition at line 173 of file RooAbsCategory.cxx.

◆ operator==() [3/3]

bool RooAbsCategory::operator== ( RooAbsCategory::value_type index ) const

Equality operator with a integer (compares with state index number)

Definition at line 152 of file RooAbsCategory.cxx.

◆ printMultiline()

void RooAbsCategory::printMultiline	(	std::ostream &	os,
		Int_t	contents,
		bool	verbose = `false`,
		TString	indent = `""`
	)		const

overridevirtual

Print info about this object to the specified stream.

In addition to the info from RooAbsArg::printStream() we add:

Shape : label, index, defined types

Reimplemented from RooAbsArg.

Reimplemented in RooBinningCategory, RooMappedCategory, RooMultiCategory, RooSuperCategory, and RooThresholdCategory.

Definition at line 414 of file RooAbsCategory.cxx.

◆ printValue()

void RooAbsCategory::printValue ( std::ostream & os ) const

overridevirtual

Print value (label name)

Reimplemented from RooPrintable.

Definition at line 401 of file RooAbsCategory.cxx.

◆ readFromStream()

bool RooAbsCategory::readFromStream	(	std::istream &	is,
		bool	compact,
		bool	verbose = `false`
	)

overridevirtual

Read object contents from stream (dummy for now)

Implements RooAbsArg.

Reimplemented in RooMultiCategory, RooCategory, and RooMappedCategory.

Definition at line 381 of file RooAbsCategory.cxx.

◆ recomputeShape()

virtual void RooAbsCategory::recomputeShape ( )

protectedpure virtual

If a category depends on the shape of others, i.e. its state numbers or names depend on the states of other categories, this function has to be implemented to recompute _stateNames and _insertionOrder.

If one of these two changes, setShapeDirty() has to be called to propagate this information to possible users of this category.

Implemented in RooBinningCategory, RooCategory, RooMappedCategory, RooMultiCategory, RooSuperCategory, and RooThresholdCategory.

◆ retrieveLegacyState()

RooCatType * RooAbsCategory::retrieveLegacyState ( value_type index ) const

protected

Return the legacy RooCatType corresponding to index. If it doesn't exist, create one.

Definition at line 698 of file RooAbsCategory.cxx.

◆ setCachedValue()

void RooAbsCategory::setCachedValue	(	double	value,
		bool	notifyClients = `true`
	)

finalprotectedvirtual

Overwrite the value stored in this object's cache.

This can be used to fake a computation that resulted in value.

Parameters

[in]	value	Value to write. The argument is reinterpreted as a category state. If such a state does not exist, this will create undefined behaviour.
[in]	notifyClients	If true, notify users of this object that its value changed. This is the default.

Reimplemented from RooAbsArg.

Definition at line 580 of file RooAbsCategory.cxx.

◆ setTreeBranchStatus()

void RooAbsCategory::setTreeBranchStatus	(	TTree &	t,
		bool	active
	)

overrideprotectedvirtual

(De)activate associate tree branch

Implements RooAbsArg.

Definition at line 534 of file RooAbsCategory.cxx.

◆ size()

std::size_t RooAbsCategory::size ( ) const

inline

Number of states defined.

Definition at line 99 of file RooAbsCategory.h.

◆ stateNames() [1/2]

std::map< std::string, value_type > & RooAbsCategory::stateNames ( )

inlineprotected

Access the map of state names to index numbers.

Triggers a recomputation if the shape is dirty.

Definition at line 168 of file RooAbsCategory.h.

◆ stateNames() [2/2]

const std::map< std::string, value_type > & RooAbsCategory::stateNames ( ) const

inlineprotected

Access the map of state names to index numbers.

Triggers a recomputation if the shape is dirty.

Definition at line 158 of file RooAbsCategory.h.

◆ Streamer()

void RooAbsCategory::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

Reimplemented in RooAbsCategoryLValue, RooBinningCategory, RooCategory, RooMappedCategory, RooMultiCategory, RooSuperCategory, and RooThresholdCategory.

◆ StreamerNVirtual()

void RooAbsCategory::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 226 of file RooAbsCategory.h.

◆ syncCache()

void RooAbsCategory::syncCache ( const RooArgSet * set = nullptr )

overrideprotectedvirtual

Explicitly synchronize RooAbsCategory internal cache.

Implements RooAbsArg.

Definition at line 547 of file RooAbsCategory.cxx.

◆ typeIterator()

TIterator * RooAbsCategory::typeIterator ( ) const

Deprecated:: Use begin() and end() instead.

Note: Using this iterator creates useless RooCatType instances, which will leak unless deleted by the user.

Definition at line 678 of file RooAbsCategory.cxx.

◆ writeToStream()

void RooAbsCategory::writeToStream	(	std::ostream &	os,
		bool	compact
	)		const

overridevirtual

Write object contents to ostream.

Implements RooAbsArg.

Reimplemented in RooCategory, RooMappedCategory, RooMultiCategory, and RooThresholdCategory.

Definition at line 391 of file RooAbsCategory.cxx.

Friends And Related Symbol Documentation

◆ RooVectorDataStore

friend class RooVectorDataStore

friend

Definition at line 203 of file RooAbsCategory.h.

Member Data Documentation

◆ _currentIndex

value_type RooAbsCategory::_currentIndex {std::numeric_limits<int>::min()}

mutableprotected

Current category state.

Definition at line 216 of file RooAbsCategory.h.

◆ _insertionOrder

std::vector<std::string> RooAbsCategory::_insertionOrder

protected

Keeps track in which order state numbers have been inserted. Make sure this is updated in recomputeShape().

Definition at line 218 of file RooAbsCategory.h.

◆ _legacyStates

std::map<value_type, std::unique_ptr<RooCatType, std::function<void(RooCatType*)> > > RooAbsCategory::_legacyStates

mutableprotected

! Map holding pointers to RooCatType instances. Only for legacy interface. Don't use if possible.

Definition at line 219 of file RooAbsCategory.h.

◆ _stateNames

std::map<std::string, value_type> RooAbsCategory::_stateNames

protected

Map state names to index numbers. Make sure state names are updated in recomputeShape().

Definition at line 217 of file RooAbsCategory.h.

◆ _treeReadBuffer

TreeReadBuffer* RooAbsCategory::_treeReadBuffer = nullptr

private

Definition at line 224 of file RooAbsCategory.h.

Libraries for RooAbsCategory:

[legend]

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

roofit/roofitcore/inc/RooAbsCategory.h
roofit/roofitcore/src/RooAbsCategory.cxx

Interface change in ROOT-6.22

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Attributes

Friends

Legacy interface

Additional Inherited Members

Member Typedef Documentation

◆ value_type

Constructor & Destructor Documentation

◆ RooAbsCategory() [1/3]

◆ RooAbsCategory() [2/3]

◆ RooAbsCategory() [3/3]

◆ ~RooAbsCategory()

Member Function Documentation

◆ attachToTree()

◆ attachToVStore()

◆ begin()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ clearTypes()

◆ copyCache()

◆ createFundamental()

◆ createTable()

◆ DeclFileName()

◆ defineState() [1/2]

◆ defineState() [2/2]

◆ defineStateUnchecked()

◆ defineType() [1/2]

◆ defineType() [2/2]

◆ defineTypeUnchecked()

◆ empty()

◆ end()

◆ evaluate()

◆ fillTreeBranch()

◆ getCurrentIndex()

◆ getCurrentLabel()

◆ getCurrentOrdinalNumber()

◆ getIndex()

◆ getLabel()

◆ getOrdinal()

◆ hasIndex()

◆ hasLabel()

◆ invalidCategory()

◆ IsA()

◆ isCategory()

◆ isIdentical()

◆ isIntegrationSafeLValue()

◆ isSignType()

◆ isValid() [1/2]

◆ isValid() [2/2]

◆ lookupIndex()

◆ lookupName()

◆ lookupType() [1/3]

◆ lookupType() [2/3]

◆ lookupType() [3/3]

◆ nextAvailableStateIndex()

◆ numTypes()

◆ operator!=() [1/3]

◆ operator!=() [2/3]

◆ operator!=() [3/3]

◆ operator==() [1/3]

◆ operator==() [2/3]

◆ operator==() [3/3]

◆ printMultiline()

◆ printValue()

◆ readFromStream()

◆ recomputeShape()

◆ retrieveLegacyState()

◆ setCachedValue()

◆ setTreeBranchStatus()

◆ size()

◆ stateNames() [1/2]

◆ stateNames() [2/2]

◆ Streamer()