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Reference Guide
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RooEffGenContext Class Reference

RooEffGenContext is a specialized generator context for p.d.fs represented by class RooEffProd, which are p.d.fs multiplied with an efficiency function.

This generator context generates events from such products by first generating events from a dedicated generator context of the input p.d.f. and applying an extra rejection step based on the efficiency function.

Definition at line 23 of file RooEffGenContext.h.

Public Member Functions

 RooEffGenContext (const RooAbsPdf &model, const RooAbsPdf &pdf, const RooAbsReal &eff, const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, Bool_t verbose=kFALSE, const RooArgSet *forceDirect=0)
 Constructor of generator context for RooEffProd products. More...
virtual ~RooEffGenContext ()
 Destructor. More...
- Public Member Functions inherited from RooAbsGenContext
 RooAbsGenContext (const RooAbsPdf &model, const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, Bool_t _verbose=kFALSE)
 Constructor. More...
virtual ~RooAbsGenContext ()
 Destructor. More...
virtual void attach (const RooArgSet &params)
 Interface to attach given parameters to object in this context. More...
virtual Int_t defaultPrintContents (Option_t *opt) const
 Define default contents when printing. More...
virtual StyleOption defaultPrintStyle (Option_t *opt) const
 Define default print style. More...
virtual RooDataSetgenerate (Double_t nEvents=0, Bool_t skipInit=kFALSE, Bool_t extendedMode=kFALSE)
 Generate the specified number of events with nEvents>0 and and return a dataset containing the generated events. More...
Bool_t isValid () const
Bool_t isVerbose () const
virtual void Print (Option_t *options=0) const
 Print TNamed name and title. More...
virtual void printArgs (std::ostream &os) const
 Print arguments of context, i.e. the observables being generated in this context. More...
virtual void printClassName (std::ostream &os) const
 Print class name of context. More...
virtual void printMultiline (std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const
 Interface for multi-line printing. More...
virtual void printName (std::ostream &os) const
 Print name of context. More...
virtual void printTitle (std::ostream &os) const
 Print title of context. More...
virtual void setExpectedData (Bool_t)
virtual void setProtoDataOrder (Int_t *lut)
 Set the traversal order of prototype data to that in the lookup tables passed as argument. More...
void setVerbose (Bool_t verbose=kTRUE)
- Public Member Functions inherited from TNamed
 TNamed ()
 TNamed (const char *name, const char *title)
 TNamed (const TString &name, const TString &title)
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
virtual ~TNamed ()
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
virtual Int_t Compare (const TObject *obj) const
 Compare two TNamed objects. More...
virtual void Copy (TObject &named) const
 Copy this to obj. More...
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer. More...
virtual const char * GetName () const
 Returns name of object. More...
virtual const char * GetTitle () const
 Returns title of object. More...
virtual ULong_t Hash () const
 Return hash value for this object. More...
virtual Bool_t IsSortable () const
virtual void ls (Option_t *option="") const
 List TNamed name and title. More...
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (name and title). More...
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 TObject (const TObject &object)
 TObject copy ctor. More...
virtual ~TObject ()
 TObject destructor. More...
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
virtual void Delete (Option_t *option="")
 Delete this object. More...
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
virtual void Dump () const
 Dump contents of object on stdout. More...
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
virtual const char * GetIconName () const
 Returns mime type name of object. More...
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
virtual Option_tGetOption () const
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
void InvertBit (UInt_t f)
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
Bool_t IsOnHeap () const
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). More...
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
void operator delete (void *ptr)
 Operator delete. More...
void operator delete[] (void *ptr)
 Operator delete []. More...
voidoperator new (size_t sz)
voidoperator new (size_t sz, void *vp)
voidoperator new[] (size_t sz)
voidoperator new[] (size_t sz, void *vp)
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
void ResetBit (UInt_t f)
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
void SetBit (UInt_t f)
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
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. More...
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
- Public Member Functions inherited from RooPrintable
 RooPrintable ()
virtual ~RooPrintable ()
virtual void printAddress (std::ostream &os) const
 Print class name of object. More...
virtual void printExtras (std::ostream &os) const
 Interface to print extras of object. More...
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'. More...
virtual void printTree (std::ostream &os, TString indent="") const
 Interface for tree structure printing of object. More...
virtual void printValue (std::ostream &os) const
 Interface to print value of object. More...

Protected Member Functions

void generateEvent (RooArgSet &theEvent, Int_t remaining)
 Generate one event. More...
void initGenerator (const RooArgSet &theEvent)
 One-time initialization of generator. More...
- Protected Member Functions inherited from RooAbsGenContext
virtual RooDataSetcreateDataSet (const char *name, const char *title, const RooArgSet &obs)
 Create an empty dataset to hold the events that will be generated. More...
void resampleData (Double_t &ratio)
 Rescale existing output buffer with given ratio. More...
- 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). More...
void MakeZombie ()

Private Attributes

double _maxEff

Additional Inherited Members

- Public Types inherited from TObject
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
- 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
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
- Static Public Member Functions inherited from RooPrintable
static std::ostream & defaultPrintStream (std::ostream *os=0)
 Return a reference to the current default stream to use in Print(). More...
static void nameFieldLength (Int_t newLen)
 Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount. More...
- Protected Attributes inherited from RooAbsGenContext
UInt_t _expectedEvents
RooAbsPdf::ExtendMode _extendMode
Bool_t _isValid
Int_t _nextProtoIndex
TString _normRange
const RooDataSet_prototype
RooArgSet _protoVars
Bool_t _verbose
- Protected Attributes inherited from TNamed
TString fName
TString fTitle
- Static Protected Attributes inherited from RooPrintable
static Int_t _nameLength

#include <RooEffGenContext.h>

Inheritance diagram for RooEffGenContext:

Constructor & Destructor Documentation

◆ RooEffGenContext()

RooEffGenContext::RooEffGenContext ( const RooAbsPdf model,
const RooAbsPdf pdf,
const RooAbsReal eff,
const RooArgSet vars,
const RooDataSet prototype = 0,
const RooArgSet auxProto = 0,
Bool_t  verbose = kFALSE,
const RooArgSet forceDirect = 0 

Constructor of generator context for RooEffProd products.

Definition at line 42 of file RooEffGenContext.cxx.

◆ ~RooEffGenContext()

RooEffGenContext::~RooEffGenContext ( )


Definition at line 59 of file RooEffGenContext.cxx.

Member Function Documentation

◆ generateEvent()

void RooEffGenContext::generateEvent ( RooArgSet theEvent,
Int_t  remaining 

Generate one event.

Generate an event from the p.d.f and then perform an accept/reject sampling based on the efficiency function

Implements RooAbsGenContext.

Definition at line 88 of file RooEffGenContext.cxx.

◆ initGenerator()

void RooEffGenContext::initGenerator ( const RooArgSet theEvent)

One-time initialization of generator.

Reimplemented from RooAbsGenContext.

Definition at line 69 of file RooEffGenContext.cxx.

Member Data Documentation

◆ _cloneSet

RooArgSet* RooEffGenContext::_cloneSet

Definition at line 36 of file RooEffGenContext.h.

◆ _eff

RooAbsReal* RooEffGenContext::_eff

Definition at line 37 of file RooEffGenContext.h.

◆ _generator

RooAbsGenContext* RooEffGenContext::_generator

Definition at line 38 of file RooEffGenContext.h.

◆ _maxEff

double RooEffGenContext::_maxEff

Definition at line 40 of file RooEffGenContext.h.

◆ _vars

RooArgSet* RooEffGenContext::_vars

Definition at line 39 of file RooEffGenContext.h.

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