Efficient implementation of the generator context specific for RooAddPdf PDFs.
The strategy of RooAddGenContext is to defer generation of each component to a dedicated generator context for that component and to randomly choose one of those context to generate an event, with a probability proportional to its associated coefficient.
Definition at line 32 of file RooAddGenContext.h.
Public Member Functions | |
RooAddGenContext (const RooAddModel &model, const RooArgSet &vars, const RooDataSet *prototype=nullptr, const RooArgSet *auxProto=nullptr, bool _verbose=false) | |
Constructor. | |
RooAddGenContext (const RooAddPdf &model, const RooArgSet &vars, const RooDataSet *prototype=nullptr, const RooArgSet *auxProto=nullptr, bool _verbose=false) | |
Constructor. | |
void | attach (const RooArgSet ¶ms) override |
Attach given set of variables to internal p.d.f. clone. | |
TClass * | IsA () const override |
void | printMultiline (std::ostream &os, Int_t content, bool verbose=false, TString indent="") const override |
Print the details of the context. | |
void | setProtoDataOrder (Int_t *lut) override |
Forward the setProtoDataOrder call to the component generator contexts. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
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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) |
void | setVerbose (bool verbose=true) |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
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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) |
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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. | |
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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 () |
template<class Pdf_t > | |
static std::unique_ptr< RooAbsGenContext > | create (const Pdf_t &pdf, const RooArgSet &vars, const RooDataSet *prototype, const RooArgSet *auxProto, bool verbose) |
Returns a RooAddGenContext if possible, or, if the RooAddGenContext doesn't support this particular RooAddPdf or RooAddModel because it has negative coefficients, returns a generic RooGenContext. | |
static const char * | DeclFileName () |
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static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
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static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
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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. | |
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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 | |
RooAddGenContext (const RooAddGenContext &other) | |
void | generateEvent (RooArgSet &theEvent, Int_t remaining) override |
Randomly choose one of the component contexts to generate this event, with a probability proportional to its coefficient. | |
void | initGenerator (const RooArgSet &theEvent) override |
One-time initialization of generator context. | |
void | updateThresholds () |
Update the cumulative threshold table from the current coefficient values. | |
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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. | |
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virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). | |
void | MakeZombie () |
Protected Attributes | |
std::vector< double > | _coefThresh |
[_nComp] Array of coefficient thresholds | |
std::vector< std::unique_ptr< RooAbsGenContext > > | _gcList |
List of component generator contexts. | |
bool | _isModel |
Are we generating from a RooAddPdf or a RooAddModel. | |
Int_t | _nComp |
Number of PDF components. | |
AddCacheElem * | _pcache = nullptr |
! RooAddPdf cache element | |
RooAbsPdf * | _pdf |
Pointer to cloned p.d.f. | |
std::unique_ptr< RooArgSet > | _pdfSet |
Set owned all nodes of internal clone of p.d.f. | |
std::unique_ptr< RooArgSet > | _vars |
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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? | |
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TString | fName |
TString | fTitle |
Additional Inherited Members | |
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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 )) } |
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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 } |
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enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
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static Int_t | _nameLength |
#include <RooAddGenContext.h>
RooAddGenContext::RooAddGenContext | ( | const RooAddPdf & | model, |
const RooArgSet & | vars, | ||
const RooDataSet * | prototype = nullptr, | ||
const RooArgSet * | auxProto = nullptr, | ||
bool | _verbose = false ) |
Constructor.
Definition at line 46 of file RooAddGenContext.cxx.
RooAddGenContext::RooAddGenContext | ( | const RooAddModel & | model, |
const RooArgSet & | vars, | ||
const RooDataSet * | prototype = nullptr, | ||
const RooArgSet * | auxProto = nullptr, | ||
bool | _verbose = false ) |
Constructor.
Definition at line 96 of file RooAddGenContext.cxx.
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protected |
Attach given set of variables to internal p.d.f. clone.
Reimplemented from RooAbsGenContext.
Definition at line 130 of file RooAddGenContext.cxx.
Definition at line 67 of file RooAddGenContext.h.
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static |
Returns a RooAddGenContext if possible, or, if the RooAddGenContext doesn't support this particular RooAddPdf or RooAddModel because it has negative coefficients, returns a generic RooGenContext.
Templated function to support both RooAddPdf and RooAddModel without code duplication and without type checking at runtime.
Definition at line 79 of file RooAddGenContext.h.
Definition at line 67 of file RooAddGenContext.h.
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overrideprotectedvirtual |
Randomly choose one of the component contexts to generate this event, with a probability proportional to its coefficient.
Implements RooAbsGenContext.
Definition at line 170 of file RooAddGenContext.cxx.
One-time initialization of generator context.
Attach theEvent to internal p.d.f clone and forward initialization call to the component generators
Reimplemented from RooAbsGenContext.
Definition at line 147 of file RooAddGenContext.cxx.
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inlineoverridevirtual |
Reimplemented from RooAbsGenContext.
Definition at line 67 of file RooAddGenContext.h.
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overridevirtual |
Print the details of the context.
Reimplemented from RooAbsGenContext.
Definition at line 232 of file RooAddGenContext.cxx.
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overridevirtual |
Forward the setProtoDataOrder call to the component generator contexts.
Reimplemented from RooAbsGenContext.
Definition at line 219 of file RooAddGenContext.cxx.
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overridevirtual |
Stream an object of class TObject.
Reimplemented from RooAbsGenContext.
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inline |
Definition at line 67 of file RooAddGenContext.h.
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protected |
Update the cumulative threshold table from the current coefficient values.
Definition at line 188 of file RooAddGenContext.cxx.
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protected |
[_nComp] Array of coefficient thresholds
Definition at line 63 of file RooAddGenContext.h.
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protected |
List of component generator contexts.
Definition at line 61 of file RooAddGenContext.h.
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protected |
Are we generating from a RooAddPdf or a RooAddModel.
Definition at line 64 of file RooAddGenContext.h.
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protected |
Number of PDF components.
Definition at line 62 of file RooAddGenContext.h.
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protected |
! RooAddPdf cache element
Definition at line 65 of file RooAddGenContext.h.
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protected |
Pointer to cloned p.d.f.
Definition at line 60 of file RooAddGenContext.h.
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protected |
Set owned all nodes of internal clone of p.d.f.
Definition at line 59 of file RooAddGenContext.h.
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protected |
Definition at line 58 of file RooAddGenContext.h.