class RooGenContext: public RooAbsGenContext

Class RooGenContext implement a universal generator context for all RooAbsPdf classes that do not have or need a specialized generator context. This generator context queries the input p.d.f which observables it can generate internally and delegates generation of those observables to the p.d.f if it deems that safe. The other observables are generated use a RooAcceptReject sampling technique.

Function Members (Methods)

public:

virtual	~RooGenContext()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	attach(const RooArgSet& params)
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TNamed::Clear(Option_t* option = "")
virtual TObject*	TNamed::Clone(const char* newname = "") const
virtual Int_t	TNamed::Compare(const TObject* obj) const
virtual void	TNamed::Copy(TObject& named) const
virtual Int_t	RooAbsGenContext::defaultPrintContents(Option_t* opt) const
static ostream&	RooPrintable::defaultPrintStream(ostream* os = 0)
virtual RooPrintable::StyleOption	RooAbsGenContext::defaultPrintStyle(Option_t* opt) const
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
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
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 RooDataSet*	RooAbsGenContext::generate(Double_t nEvents = 0, Bool_t skipInit = kFALSE, Bool_t extendedMode = kFALSE)
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
virtual const char*	TNamed::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() 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
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TNamed::IsSortable() const
Bool_t	RooAbsGenContext::isValid() const
Bool_t	RooAbsGenContext::isVerbose() 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()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
void	TObject::operator delete(void* ptr)
void	TObject::operator delete(void* ptr, void* vp)
void	TObject::operator delete[](void* ptr)
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)
RooGenContext&	operator=(const RooGenContext&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	RooAbsGenContext::Print(Option_t* options = 0) const
virtual void	RooPrintable::printAddress(ostream& os) const
virtual void	RooAbsGenContext::printArgs(ostream& os) const
virtual void	RooAbsGenContext::printClassName(ostream& os) const
virtual void	RooPrintable::printExtras(ostream& os) const
virtual void	printMultiline(ostream& os, Int_t content, Bool_t verbose = kFALSE, TString indent = "") const
virtual void	RooAbsGenContext::printName(ostream& os) const
virtual void	RooPrintable::printStream(ostream& os, Int_t contents, RooPrintable::StyleOption style, TString indent = "") const
virtual void	RooAbsGenContext::printTitle(ostream& os) const
virtual void	RooPrintable::printTree(ostream& os, TString indent = "") const
virtual void	RooPrintable::printValue(ostream& os) const
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
	RooGenContext(const RooGenContext&)
	RooGenContext(const RooAbsPdf& model, const RooArgSet& vars, const RooDataSet* prototype = 0, const RooArgSet* auxProto = 0, Bool_t verbose = kFALSE, const RooArgSet* forceDirect = 0)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(ostream& 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)
virtual void	RooAbsGenContext::setExpectedData(Bool_t)
virtual void	TNamed::SetName(const char* name)MENU
virtual void	TNamed::SetNameTitle(const char* name, const char* title)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	RooAbsGenContext::setProtoDataOrder(Int_t* lut)
virtual void	TNamed::SetTitle(const char* title = "")MENU
virtual void	TObject::SetUniqueID(UInt_t uid)
void	RooAbsGenContext::setVerbose(Bool_t verbose = kTRUE)
virtual void	ShowMembers(TMemberInspector& insp) const
virtual Int_t	TNamed::Sizeof() const
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_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	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 RooDataSet*	RooAbsGenContext::createDataSet(const char* name, const char* title, const RooArgSet& obs)
virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
virtual void	generateEvent(RooArgSet& theEvent, Int_t remaining)
virtual void	initGenerator(const RooArgSet& theEvent)
void	TObject::MakeZombie()
void	RooAbsGenContext::resampleData(Double_t& ratio)

Data Members

public:

static RooPrintable::ContentsOption	RooPrintable::kAddress
static RooPrintable::ContentsOption	RooPrintable::kArgs
static TObject::(anonymous)	TObject::kBitMask
static TObject::EStatusBits	TObject::kCanDelete
static TObject::EStatusBits	TObject::kCannotPick
static RooPrintable::ContentsOption	RooPrintable::kClassName
static RooPrintable::ContentsOption	RooPrintable::kCollectionHeader
static RooPrintable::ContentsOption	RooPrintable::kExtras
static TObject::EStatusBits	TObject::kHasUUID
static RooPrintable::StyleOption	RooPrintable::kInline
static TObject::EStatusBits	TObject::kInvalidObject
static TObject::(anonymous)	TObject::kIsOnHeap
static TObject::EStatusBits	TObject::kIsReferenced
static TObject::EStatusBits	TObject::kMustCleanup
static RooPrintable::ContentsOption	RooPrintable::kName
static TObject::EStatusBits	TObject::kNoContextMenu
static TObject::(anonymous)	TObject::kNotDeleted
static TObject::EStatusBits	TObject::kObjInCanvas
static TObject::(anonymous)	TObject::kOverwrite
static TObject::(anonymous)	TObject::kSingleKey
static RooPrintable::StyleOption	RooPrintable::kSingleLine
static RooPrintable::StyleOption	RooPrintable::kStandard
static RooPrintable::ContentsOption	RooPrintable::kTitle
static RooPrintable::StyleOption	RooPrintable::kTreeStructure
static RooPrintable::ContentsOption	RooPrintable::kValue
static RooPrintable::StyleOption	RooPrintable::kVerbose
static TObject::(anonymous)	TObject::kWriteDelete
static TObject::(anonymous)	TObject::kZombie

protected:

RooRealIntegral*	_acceptRejectFunc	Projection function to be passed to accept/reject sampler
Double_t	_area	Maximum probability, p.d.f area and normalization
RooArgSet*	_cloneSet	Clone of all nodes of input p.d.f
Int_t	_code	Internal generation code
RooArgSet	_directVars	List of observables generated internally, randomly, and by accept/reject sampling
UInt_t	RooAbsGenContext::_expectedEvents	Number of expected events from extended p.d.f
RooAbsPdf::ExtendMode	RooAbsGenContext::_extendMode	Extended mode capabilities of p.d.f.
RooDataSet*	RooAbsGenContext::_genData	! Data being generated
RooAbsNumGenerator*	_generator	MC sampling generation engine
Bool_t	RooAbsGenContext::_isValid	Is context in valid state?
Double_t	_maxProb	Maximum probability, p.d.f area and normalization
RooRealVar*	_maxVar	Variable holding maximum value of p.d.f
static Int_t	RooPrintable::_nameLength
Int_t	RooAbsGenContext::_nextProtoIndex	Next prototype event to load according to LUT
Double_t	_norm	Maximum probability, p.d.f area and normalization
TString	RooAbsGenContext::_normRange	Normalization range of pdf
RooArgSet	_otherVars	List of observables generated internally, randomly, and by accept/reject sampling
RooAbsPdf*	_pdfClone	Clone of input p.d.f
Int_t*	RooAbsGenContext::_protoOrder	LUT with traversal order of prototype data
RooArgSet	RooAbsGenContext::_protoVars	Prototype observables
const RooDataSet*	RooAbsGenContext::_prototype	Pointer to prototype dataset
RooArgSet*	RooAbsGenContext::_theEvent	Pointer to observable event being generated
TIterator*	_uniIter	Iterator over uniform observables
RooArgSet	_uniformVars	List of observables generated internally, randomly, and by accept/reject sampling
Int_t	_updateFMaxPerEvent	If true, maximum p.d.f value needs to be recalculated for each event
Bool_t	RooAbsGenContext::_verbose	Verbose messaging?
TString	TNamed::fName	object identifier
TString	TNamed::fTitle	object title

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

RooGenContext(const RooAbsPdf& model, const RooArgSet& vars, const RooDataSet* prototype = 0, const RooArgSet* auxProto = 0, Bool_t verbose = kFALSE, const RooArgSet* forceDirect = 0)

 Initialize a new context for generating events with the specified
 variables, using the specified PDF model. A prototype dataset (if provided)
 is not cloned and still belongs to the caller. The contents and shape
 of this dataset can be changed between calls to generate() as long as the
 expected columns to be copied to the generated dataset are present.
 Any argument supplied in the forceDirect RooArgSet are always offered
 for internal generation to the p.d.f., even if this is deemed unsafe by
 the logic of RooGenContext.

~RooGenContext()

 Destructor.

void attach(const RooArgSet& params)

 Attach the cloned model to the event buffer we will be filling.

void initGenerator(const RooArgSet& theEvent)

 Perform one-time initialization of the generator context

void generateEvent(RooArgSet& theEvent, Int_t remaining)

 Generate one event. The 'remaining' integer is not used other than
 for printing messages

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

 Printing interface

RooGenContext(const RooAbsPdf& model, const RooArgSet& vars, const RooDataSet* prototype = 0, const RooArgSet* auxProto = 0, Bool_t verbose = kFALSE, const RooArgSet* forceDirect = 0)