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class RooFormula: public TFormula, public RooPrintable

RooFormula an implementation of TFormula that interfaces it to RooAbsArg value objects. It allows to use the value of a given list of RooAbsArg objects in the formula expression. Reference is done either by the RooAbsArgs name or by list ordinal postion ('@0,@1,...'). State information of RooAbsCategories can be accessed used the '::' operator, e.g. 'tagCat::Kaon' will resolve to the numerical value of the 'Kaon' state of the RooAbsCategory object named tagCat.

Function Members (Methods)

public:

	RooFormula()
	RooFormula(const RooFormula& other, const char* name = 0)
	RooFormula(const char* name, const char* formula, const RooArgList& varList)
virtual	~RooFormula()
void	TObject::AbstractMethod(const char* method) const
RooArgSet&	actualDependents() const
virtual void	TFormula::Analyze(const char* schain, Int_t& err, Int_t offset = 0)
virtual Bool_t	TFormula::AnalyzeFunction(TString& chaine, Int_t& err, Int_t offset = 0)
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
Bool_t	changeDependents(const RooAbsCollection& newDeps, Bool_t mustReplaceAll, Bool_t nameChange)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TFormula::Clear(Option_t* option = "")
virtual TObject*	Clone(const char* newName = 0) const
virtual Int_t	TNamed::Compare(const TObject* obj) const
virtual Int_t	TFormula::Compile(const char* expression = "")
virtual void	TFormula::Copy(TObject& formula) const
virtual Int_t	RooPrintable::defaultPrintContents(Option_t* opt) const
static ostream&	RooPrintable::defaultPrintStream(ostream* os = 0)
virtual RooPrintable::StyleOption	RooPrintable::defaultPrintStyle(Option_t* opt) const
virtual char*	TFormula::DefinedString(Int_t code)
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
void	dump()
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
Double_t	eval(const RooArgSet* nset = 0)
virtual Double_t	TFormula::Eval(Double_t x, Double_t y = 0, Double_t z = 0, Double_t t = 0) const
virtual Double_t	TFormula::EvalPar(const Double_t* x, const Double_t* params = 0)
virtual Double_t	TFormula::EvalParOld(const Double_t* x, const Double_t* params = 0)
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual void	TNamed::FillBuffer(char*& buffer)
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual TString	TFormula::GetExpFormula(Option_t* option = "") const
virtual const char*	TObject::GetIconName() const
virtual const TObject*	TFormula::GetLinearPart(Int_t i)
virtual const char*	TNamed::GetName() const
virtual Int_t	TFormula::GetNdim() const
virtual Int_t	TFormula::GetNpar() const
virtual Int_t	TFormula::GetNumber() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
RooAbsArg*	getParameter(const char* name) const
RooAbsArg*	getParameter(Int_t index) const
Double_t	TFormula::GetParameter(Int_t ipar) const
Double_t	TFormula::GetParameter(const char* name) const
virtual Double_t*	TFormula::GetParameters() const
virtual void	TFormula::GetParameters(Double_t* params)
virtual const char*	TFormula::GetParName(Int_t ipar) const
virtual Int_t	TFormula::GetParNumber(const char* name) const
virtual const char*	TNamed::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TNamed::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
virtual Bool_t	TFormula::IsLinear()
virtual Bool_t	TFormula::IsNormalized()
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TNamed::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TNamed::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
static void	RooPrintable::nameFieldLength(Int_t newLen)
virtual Bool_t	TObject::Notify()
Bool_t	ok()
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
void	TFormula::Optimize()
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	Print(Option_t* options = 0) const
virtual void	RooPrintable::printAddress(ostream& os) const
virtual void	printArgs(ostream& os) const
virtual void	printClassName(ostream& os) const
virtual void	RooPrintable::printExtras(ostream& os) const
virtual void	printMultiline(ostream& os, Int_t contents, Bool_t verbose = kFALSE, TString indent = "") const
virtual void	printName(ostream& os) const
virtual void	RooPrintable::printStream(ostream& os, Int_t contents, RooPrintable::StyleOption style, TString indent = "") const
virtual void	printTitle(ostream& os) const
virtual void	RooPrintable::printTree(ostream& os, TString indent = "") const
virtual void	printValue(ostream& os) const
virtual void	TFormula::ProcessLinear(TString& replaceformula)
virtual Int_t	TObject::Read(const char* name)
Bool_t	reCompile(const char* newFormula)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
static void	TFormula::SetMaxima(Int_t maxop = 1000, Int_t maxpar = 1000, Int_t maxconst = 1000)
virtual void	TNamed::SetName(const char* name)MENU
virtual void	TNamed::SetNameTitle(const char* name, const char* title)
virtual void	TFormula::SetNumber(Int_t number)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TFormula::SetParameter(const char* name, Double_t parvalue)
virtual void	TFormula::SetParameter(Int_t ipar, Double_t parvalue)
virtual void	TFormula::SetParameters(const Double_t* params)
virtual void	TFormula::SetParameters(Double_t p0, Double_t p1, Double_t p2 = 0, Double_t p3 = 0, Double_t p4 = 0, Double_t p5 = 0, Double_t p6 = 0, Double_t p7 = 0, Double_t p8 = 0, Double_t p9 = 0, Double_t p10 = 0)MENU
virtual void	TFormula::SetParName(Int_t ipar, const char* name)
virtual void	TFormula::SetParNames(const char* name0 = "p0", const char* name1 = "p1", const char* name2 = "p2", const char* name3 = "p3", const char* name4 = "p4", const char* name5 = "p5", const char* name6 = "p6", const char* name7 = "p7", const char* name8 = "p8", const char* name9 = "p9", const char* name10 = "p10")MENU
virtual void	TNamed::SetTitle(const char* title = "")MENU
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual Int_t	TNamed::Sizeof() const
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TFormula::Update()
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual Bool_t	TFormula::CheckOperands(Int_t operation, Int_t& err)
virtual Bool_t	TFormula::CheckOperands(Int_t leftoperand, Int_t rightoperartion, Int_t& err)
void	TFormula::ClearFormula(Option_t* option = "")
virtual void	TFormula::Convert(UInt_t fromVersion)
virtual Double_t	DefinedValue(Int_t code)
Int_t	DefinedVariable(TString& name)
virtual Int_t	DefinedVariable(TString& name, int& action)
virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
Double_t	TFormula::EvalParFast(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive0(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive1(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive2(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive3(const Double_t* x, const Double_t* params)
Double_t	TFormula::EvalPrimitive4(const Double_t* x, const Double_t* params)
Short_t	TFormula::GetAction(Int_t code) const
Short_t	TFormula::GetActionOptimized(Int_t code) const
Int_t	TFormula::GetActionParam(Int_t code) const
Int_t	TFormula::GetActionParamOptimized(Int_t code) const
Int_t*	TFormula::GetOper() const
Int_t*	TFormula::GetOperOptimized() const
void	initCopy(const RooFormula& other)
virtual Bool_t	TFormula::IsString(Int_t oper) const
void	TFormula::MakePrimitive(const char* expr, Int_t pos)
void	TObject::MakeZombie()
RooFormula&	operator=(const RooFormula& other)
Int_t	TFormula::PreCompile()
void	TFormula::SetAction(Int_t code, Int_t value, Int_t param = 0)
void	TFormula::SetActionOptimized(Int_t code, Int_t value, Int_t param = 0)
virtual Bool_t	TFormula::StringToNumber(Int_t code)

Data Members

public:

enum TFormula::[unnamed] {	kEnd
	kAdd
	kSubstract
	kMultiply
	kDivide
	kModulo
	kcos
	ksin
	ktan
	kacos
	kasin
	katan
	katan2
	kfmod
	kpow
	ksq
	ksqrt
	kstrstr
	kmin
	kmax
	klog
	kexp
	klog10
	kpi
	kabs
	ksign
	kint
	kSignInv
	krndm
	kAnd
	kOr
	kEqual
	kNotEqual
	kLess
	kGreater
	kLessThan
	kGreaterThan
	kNot
	kcosh
	ksinh
	ktanh
	kacosh
	kasinh
	katanh
	kStringEqual
	kStringNotEqual
	kBitAnd
	kBitOr
	kLeftShift
	kRightShift
	kJumpIf
	kJump
	kexpo
	kxexpo
	kyexpo
	kzexpo
	kxyexpo
	kgaus
	kxgaus
	kygaus
	kzgaus
	kxygaus
	klandau
	kxlandau
	kylandau
	kzlandau
	kxylandau
	kpol
	kxpol
	kypol
	kzpol
	kParameter
	kConstant
	kBoolOptimize
	kStringConst
	kVariable
	kFunctionCall
	kData
	kUnary
	kBinary
	kThree
	kDefinedVariable
	kDefinedString
	kPlusD
	kPlusDD
	kMultD
	kMultDD
	kBoolOptimizeOr
	kBoolOptimizeAnd
	kBoolSet
	kFDM
	kFD0
	kFD1
	kFD2
	kFD3
	kNotGlobal
	kNormalized
	kLinear
};
enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};
enum RooPrintable::ContentsOption {	kName
	kClassName
	kValue
	kArgs
	kExtras
	kAddress
	kTitle
	kCollectionHeader
};
enum RooPrintable::StyleOption {	kInline
	kSingleLine
	kStandard
	kVerbose
	kTreeStructure
};

protected:

RooArgSet	_actual	! Set of actual dependents
Bool_t	_compiled	Flag set if formula is compiled
Bool_t	_isOK	Is internal state OK?
RooLinkedList	_labelList	List of label names for category objects
static Int_t	RooPrintable::_nameLength
RooArgSet*	_nset
RooLinkedList	_origList	! Original list of dependents
RooLinkedList	_useList	! List of actual dependents
TBits	TFormula::fAlreadyFound	! cache for information
Double_t*	TFormula::fConst	[fNconst] Array of fNconst formula constants
TString*	TFormula::fExpr	[fNoper] List of expressions
TString*	TFormula::fExprOptimized	![fNOperOptimized] List of expressions
TObjArray	TFormula::fFunctions	Array of function calls to make
TObjArray	TFormula::fLinearParts	Linear parts if the formula is linear (contains '\|' or "++")
Int_t	TFormula::fNOperOptimized	!Number of operators after optimization
TString	TNamed::fName	object identifier
TString*	TFormula::fNames	[fNpar] Array of parameter names
Int_t	TFormula::fNconst	Number of constants
Int_t	TFormula::fNdim	Dimension of function (1=1-Dim, 2=2-Dim,etc)
Int_t	TFormula::fNoper	Number of operators
Int_t	TFormula::fNpar	Number of parameters
Int_t	TFormula::fNstring	Number of different constants character strings
Int_t	TFormula::fNumber	formula number identifier
Int_t	TFormula::fNval	Number of different variables in expression
TOperOffset*	TFormula::fOperOffset	![fNOperOptimized] Offsets of operrands
Int_t*	TFormula::fOperOptimized	![fNOperOptimized] List of operators. (See documentation for changes made at version 7)
G__p2memfunc	TFormula::fOptimal	!pointer to optimal function
Double_t*	TFormula::fParams	[fNpar] Array of fNpar parameters
TFormulaPrimitive**	TFormula::fPredefined	![fNPar] predefined function
TString	TNamed::fTitle	object title

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

RooFormula()

 Default constructor

RooFormula(const char* name, const char* formula, const RooArgList& varList)

 Constructor with expression string and list of RooAbsArg variables

RooFormula(const RooFormula& other, const char* name = 0)

 Copy constructor

Bool_t reCompile(const char* newFormula)

 Recompile formula with new expression

~RooFormula()

 Destructor

RooArgSet& actualDependents() const

 Return list of RooAbsArg dependents that is actually used by formula expression

void dump()

 DEBUG: Dump state information

Bool_t changeDependents(const RooAbsCollection& newDeps, Bool_t mustReplaceAll, Bool_t nameChange)

 Change used variables to those with the same name in given list
 If mustReplaceAll is true and error is generated if one of the
 elements of newDeps is not found as a server

Double_t eval(const RooArgSet* nset = 0)

 Evaluate TFormula using given normalization set to be used as
 observables definition passed to RooAbsReal::getVal()

DefinedValue(Int_t code)

 Interface to TFormula, return value defined by object with id 'code'
 Object ids are mapped from object names by method DefinedVariable()

Int_t DefinedVariable(TString& name, int& action)

 Interface to TFormula. If name passed by TFormula is recognized
 as one of our RooAbsArg servers, return a unique id integer
 that represent this variable.

Int_t DefinedVariable(TString& name)

 Interface to TFormula. If name passed by TFormula is recognized
 as one of our RooAbsArg servers, return a unique id integer
 that represent this variable.

void printMultiline(ostream& os, Int_t contents, Bool_t verbose = kFALSE, TString indent = "") const

 Printing interface

void printValue(ostream& os) const

 Print value of formula

void printName(ostream& os) const

 Print name of formula

void printTitle(ostream& os) const

 Print title of formula

void printClassName(ostream& os) const

 Print class name of formula

void printArgs(ostream& os) const

 Print arguments of formula, i.e. dependents that are actually used

TObject* Clone(const char* newName = 0) const

{ return new RooFormula(*this,newName) ; }

RooAbsArg* getParameter(const char* name)

 Return pointer to parameter with given name

RooAbsArg* getParameter(Int_t index)

 Return pointer to parameter at given index

Bool_t ok()

 Function value accessor

{ return _isOK ; }

void Print(Option_t* options = 0) const

 Printing interface (human readable)

RooFormula& operator=(const RooFormula& other)

void initCopy(const RooFormula& other)