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.
Definition at line 30 of file RooGenContext.h.
Public Member Functions | |
RooGenContext (const RooAbsPdf &model, const RooArgSet &vars, const RooDataSet *prototype=nullptr, const RooArgSet *auxProto=nullptr, bool verbose=false, const RooArgSet *forceDirect=nullptr) | |
Initialize a new context for generating events with the specified variables, using the specified PDF model. | |
~RooGenContext () override | |
Destructor. | |
void | attach (const RooArgSet ¶ms) override |
Attach the cloned model to the event buffer we will be filling. | |
TClass * | IsA () const override |
void | printMultiline (std::ostream &os, Int_t content, bool verbose=false, TString indent="") const override |
Printing interface. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Public Member Functions inherited from RooAbsGenContext | |
RooAbsGenContext (const RooAbsPdf &model, const RooArgSet &vars, const RooDataSet *prototype=nullptr, const RooArgSet *auxProto=nullptr, bool _verbose=false) | |
Constructor. | |
Int_t | defaultPrintContents (Option_t *opt) const override |
Define default contents when printing. | |
StyleOption | defaultPrintStyle (Option_t *opt) const override |
Define default print style. | |
virtual RooDataSet * | generate (double nEvents=0, bool skipInit=false, bool extendedMode=false) |
Generate the specified number of events with nEvents>0 and and return a dataset containing the generated events. | |
bool | isValid () const |
bool | isVerbose () const |
void | Print (Option_t *options=nullptr) const override |
This method must be overridden when a class wants to print itself. | |
void | printArgs (std::ostream &os) const override |
Print arguments of context, i.e. the observables being generated in this context. | |
void | printClassName (std::ostream &os) const override |
Print class name of context. | |
void | printName (std::ostream &os) const override |
Print name of context. | |
void | printTitle (std::ostream &os) const override |
Print title of context. | |
virtual void | setExpectedData (bool) |
virtual void | setProtoDataOrder (Int_t *lut) |
Set the traversal order of prototype data to that in the lookup tables passed as argument. | |
void | setVerbose (bool verbose=true) |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Public Member Functions inherited from TNamed | |
TNamed () | |
TNamed (const char *name, const char *title) | |
TNamed (const TNamed &named) | |
TNamed copy ctor. | |
TNamed (const TString &name, const TString &title) | |
virtual | ~TNamed () |
TNamed destructor. | |
void | Clear (Option_t *option="") override |
Set name and title to empty strings (""). | |
TObject * | Clone (const char *newname="") const override |
Make a clone of an object using the Streamer facility. | |
Int_t | Compare (const TObject *obj) const override |
Compare two TNamed objects. | |
void | Copy (TObject &named) const override |
Copy this to obj. | |
virtual void | FillBuffer (char *&buffer) |
Encode TNamed into output buffer. | |
const char * | GetName () const override |
Returns name of object. | |
const char * | GetTitle () const override |
Returns title of object. | |
ULong_t | Hash () const override |
Return hash value for this object. | |
TClass * | IsA () const override |
Bool_t | IsSortable () const override |
void | ls (Option_t *option="") const override |
List TNamed name and title. | |
TNamed & | operator= (const TNamed &rhs) |
TNamed assignment operator. | |
void | Print (Option_t *option="") const override |
Print TNamed name and title. | |
virtual void | SetName (const char *name) |
Set the name of the TNamed. | |
virtual void | SetNameTitle (const char *name, const char *title) |
Set all the TNamed parameters (name and title). | |
virtual void | SetTitle (const char *title="") |
Set the title of the TNamed. | |
virtual Int_t | Sizeof () const |
Return size of the TNamed part of the TObject. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Public Member Functions inherited from TObject | |
TObject () | |
TObject constructor. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual void | Delete (Option_t *option="") |
Delete this object. | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Computes distance from point (px,py) to the object. | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1) . | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. | |
virtual const char * | GetIconName () const |
Returns mime type name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual Option_t * | GetOption () const |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
Bool_t | IsDestructed () const |
IsDestructed. | |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification (the base implementation is no-op). | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete (void *ptr, void *vp) |
Only called by placement new when throwing an exception. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void | operator delete[] (void *ptr, void *vp) |
Only called by placement new[] when throwing an exception. | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. | |
virtual void | Paint (Option_t *option="") |
This method must be overridden if a class wants to paint itself. | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a primitive as a C++ statement(s) on output stream "out". | |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
Public Member Functions inherited from RooPrintable | |
RooPrintable () | |
virtual | ~RooPrintable () |
virtual void | printAddress (std::ostream &os) const |
Print class name of object. | |
virtual void | printExtras (std::ostream &os) const |
Interface to print extras of object. | |
virtual void | printStream (std::ostream &os, Int_t contents, StyleOption style, TString indent="") const |
Print description of object on ostream, printing contents set by contents integer, which is interpreted as an OR of 'enum ContentsOptions' values and in the style given by 'enum StyleOption'. | |
virtual void | printTree (std::ostream &os, TString indent="") const |
Interface for tree structure printing of object. | |
virtual void | printValue (std::ostream &os) const |
Interface to print value of object. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Static Public Member Functions | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from RooAbsGenContext | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from TNamed | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from TObject | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Longptr_t | GetDtorOnly () |
Return destructor only flag. | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. | |
Static Public Member Functions inherited from RooPrintable | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static std::ostream & | defaultPrintStream (std::ostream *os=nullptr) |
Return a reference to the current default stream to use in Print(). | |
static void | nameFieldLength (Int_t newLen) |
Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount. | |
Protected Member Functions | |
void | generateEvent (RooArgSet &theEvent, Int_t remaining) override |
Generate one event. | |
void | initGenerator (const RooArgSet &theEvent) override |
Perform one-time initialization of the generator context. | |
Protected Member Functions inherited from RooAbsGenContext | |
virtual RooDataSet * | createDataSet (const char *name, const char *title, const RooArgSet &obs) |
Create an empty dataset to hold the events that will be generated. | |
void | resampleData (double &ratio) |
Rescale existing output buffer with given ratio. | |
Protected Member Functions inherited from TObject | |
virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). | |
void | MakeZombie () |
Protected Attributes | |
std::unique_ptr< RooAbsReal > | _acceptRejectFunc |
Projection function to be passed to accept/reject sampler. | |
double | _area {0.} |
RooArgSet | _cloneSet |
Clone of all nodes of input p.d.f. | |
Int_t | _code |
Internal generation code. | |
RooArgSet | _directVars |
RooAbsNumGenerator * | _generator |
MC sampling generation engine. | |
double | _maxProb {0.} |
RooRealVar * | _maxVar |
Variable holding maximum value of p.d.f. | |
double | _norm {0.} |
Maximum probability, p.d.f area and normalization. | |
RooArgSet | _otherVars |
List of observables generated internally, randomly, and by accept/reject sampling. | |
RooAbsPdf * | _pdfClone |
Clone of input p.d.f. | |
RooArgSet | _uniformVars |
Int_t | _updateFMaxPerEvent |
If true, maximum p.d.f value needs to be recalculated for each event. | |
Protected Attributes inherited from RooAbsGenContext | |
UInt_t | _expectedEvents |
Number of expected events from extended p.d.f. | |
RooAbsPdf::ExtendMode | _extendMode |
Extended mode capabilities of p.d.f. | |
RooDataSet * | _genData = nullptr |
! Data being generated | |
bool | _isValid |
Is context in valid state? | |
Int_t | _nextProtoIndex |
Next prototype event to load according to LUT. | |
TString | _normRange |
Normalization range of pdf. | |
std::vector< Int_t > | _protoOrder |
LUT with traversal order of prototype data. | |
const RooDataSet * | _prototype |
Pointer to prototype dataset. | |
RooArgSet | _protoVars |
Prototype observables. | |
RooArgSet | _theEvent |
Pointer to observable event being generated. | |
bool | _verbose |
Verbose messaging? | |
Protected Attributes inherited from TNamed | |
TString | fName |
TString | fTitle |
Additional Inherited Members | |
Public Types inherited from TObject | |
enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) } |
enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) } |
enum | EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) } |
Public Types inherited from RooPrintable | |
enum | ContentsOption { kName =1 , kClassName =2 , kValue =4 , kArgs =8 , kExtras =16 , kAddress =32 , kTitle =64 , kCollectionHeader =128 } |
enum | StyleOption { kInline =1 , kSingleLine =2 , kStandard =3 , kVerbose =4 , kTreeStructure =5 } |
Protected Types inherited from TObject | |
enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
Static Protected Attributes inherited from RooPrintable | |
static Int_t | _nameLength |
#include <RooGenContext.h>
RooGenContext::RooGenContext | ( | const RooAbsPdf & | model, |
const RooArgSet & | vars, | ||
const RooDataSet * | prototype = nullptr , |
||
const RooArgSet * | auxProto = nullptr , |
||
bool | verbose = false , |
||
const RooArgSet * | forceDirect = nullptr |
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) |
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.
Definition at line 64 of file RooGenContext.cxx.
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override |
Destructor.
Definition at line 309 of file RooGenContext.cxx.
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overridevirtual |
Attach the cloned model to the event buffer we will be filling.
Reimplemented from RooAbsGenContext.
Definition at line 321 of file RooGenContext.cxx.
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static |
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inlinestaticconstexpr |
Definition at line 55 of file RooGenContext.h.
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inlinestatic |
Definition at line 55 of file RooGenContext.h.
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overrideprotectedvirtual |
Generate one event.
The 'remaining' integer is not used other than for printing messages
Implements RooAbsGenContext.
Definition at line 363 of file RooGenContext.cxx.
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overrideprotectedvirtual |
Perform one-time initialization of the generator context.
Reimplemented from RooAbsGenContext.
Definition at line 340 of file RooGenContext.cxx.
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inlineoverridevirtual |
Reimplemented from RooAbsGenContext.
Definition at line 55 of file RooGenContext.h.
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overridevirtual |
Printing interface.
Reimplemented from RooAbsGenContext.
Definition at line 415 of file RooGenContext.cxx.
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overridevirtual |
Stream an object of class TObject.
Reimplemented from RooAbsGenContext.
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inline |
Definition at line 55 of file RooGenContext.h.
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protected |
Projection function to be passed to accept/reject sampler.
Definition at line 50 of file RooGenContext.h.
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protected |
Definition at line 49 of file RooGenContext.h.
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protected |
Clone of all nodes of input p.d.f.
Definition at line 45 of file RooGenContext.h.
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protected |
Internal generation code.
Definition at line 48 of file RooGenContext.h.
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protected |
Definition at line 47 of file RooGenContext.h.
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protected |
MC sampling generation engine.
Definition at line 51 of file RooGenContext.h.
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protected |
Definition at line 49 of file RooGenContext.h.
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protected |
Variable holding maximum value of p.d.f.
Definition at line 52 of file RooGenContext.h.
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protected |
Maximum probability, p.d.f area and normalization.
Definition at line 49 of file RooGenContext.h.
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protected |
List of observables generated internally, randomly, and by accept/reject sampling.
Definition at line 47 of file RooGenContext.h.
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protected |
Clone of input p.d.f.
Definition at line 46 of file RooGenContext.h.
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protected |
Definition at line 47 of file RooGenContext.h.
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protected |
If true, maximum p.d.f value needs to be recalculated for each event.
Definition at line 53 of file RooGenContext.h.