ROOT 6.08/07 Reference Guide |
Class RooAcceptReject is a generic toy monte carlo generator implement the accept/reject sampling technique on any positively valued function.
The RooAcceptReject generator is used by the various generator context classes to take care of generation of observables for which p.d.fs do not define internal methods
Definition at line 29 of file RooAcceptReject.h.
Public Member Functions | |
RooAcceptReject () | |
RooAcceptReject (const RooAbsReal &func, const RooArgSet &genVars, const RooNumGenConfig &config, Bool_t verbose=kFALSE, const RooAbsReal *maxFuncVal=0) | |
Initialize an accept-reject generator for the specified distribution function, which must be non-negative but does not need to be normalized over the variables to be generated, genVars. More... | |
virtual | ~RooAcceptReject () |
Destructor. More... | |
virtual Bool_t | canSampleCategories () const |
virtual Bool_t | canSampleConditional () const |
RooAbsNumGenerator * | clone (const RooAbsReal &func, const RooArgSet &genVars, const RooArgSet &, const RooNumGenConfig &config, Bool_t verbose=kFALSE, const RooAbsReal *maxFuncVal=0) const |
const RooArgSet * | generateEvent (UInt_t remaining, Double_t &resampleRatio) |
Return a pointer to a generated event. More... | |
Double_t | getFuncMax () |
Public Member Functions inherited from RooAbsNumGenerator | |
RooAbsNumGenerator () | |
RooAbsNumGenerator (const RooAbsReal &func, const RooArgSet &genVars, Bool_t verbose=kFALSE, const RooAbsReal *maxFuncVal=0) | |
Initialize an accept-reject generator for the specified distribution function, which must be non-negative but does not need to be normalized over the variables to be generated, genVars. More... | |
virtual | ~RooAbsNumGenerator () |
Destructor. More... | |
void | attachParameters (const RooArgSet &vars) |
Reattach original parameters to function clone. 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 the arguments of the generator. More... | |
virtual void | printClassName (std::ostream &os) const |
Print the class name of the generator. More... | |
virtual void | printName (std::ostream &os) const |
Print name of the generator. More... | |
virtual void | printTitle (std::ostream &os) const |
Print the title of the generator. 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 TObject * | Clone (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... | |
TNamed & | operator= (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 TObject * | DrawClone (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 TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. More... | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. More... | |
virtual Option_t * | GetDrawOption () 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_t * | GetOption () 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... | |
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. 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 Int_t | defaultPrintContents (Option_t *opt) const |
Default choice of contents to be printed (name and value) More... | |
virtual StyleOption | defaultPrintStyle (Option_t *opt) const |
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 | printMultiline (std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const |
Interface for detailed printing 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 | addEventToCache () |
Add a trial event to our cache and update our estimates of the function maximum value and integral. More... | |
const RooArgSet * | nextAcceptedEvent () |
Scan through events in the cache which have not been used yet, looking for the first accepted one which is added to the specified container. 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 () |
Static Protected Member Functions | |
static void | registerSampler (RooNumGenFactory &fact) |
Register RooIntegrator1D, is parameters and capabilities with RooNumIntFactory. More... | |
Protected Attributes | |
UInt_t | _catSampleMult |
UInt_t | _eventsUsed |
Double_t | _funcSum |
Double_t | _maxFuncVal |
UInt_t | _minTrials |
UInt_t | _minTrialsArray [4] |
TIterator * | _nextCatVar |
TIterator * | _nextRealVar |
UInt_t | _realSampleDim |
UInt_t | _totalEvents |
Protected Attributes inherited from RooAbsNumGenerator | |
RooDataSet * | _cache |
RooArgSet | _catVars |
RooArgSet * | _cloneSet |
RooAbsReal * | _funcClone |
const RooAbsReal * | _funcMaxVal |
RooRealVar * | _funcValPtr |
RooRealVar * | _funcValStore |
Bool_t | _isValid |
RooArgSet | _realVars |
Bool_t | _verbose |
Protected Attributes inherited from TNamed | |
TString | fName |
TString | fTitle |
Friends | |
class | RooNumGenFactory |
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... | |
Static Protected Attributes inherited from RooPrintable | |
static Int_t | _nameLength |
#include <RooAcceptReject.h>
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inline |
Definition at line 31 of file RooAcceptReject.h.
RooAcceptReject::RooAcceptReject | ( | const RooAbsReal & | func, |
const RooArgSet & | genVars, | ||
const RooNumGenConfig & | config, | ||
Bool_t | verbose = kFALSE , |
||
const RooAbsReal * | maxFuncVal = 0 |
||
) |
Initialize an accept-reject generator for the specified distribution function, which must be non-negative but does not need to be normalized over the variables to be generated, genVars.
The function and its dependents are cloned and so will not be disturbed during the generation process.
Definition at line 81 of file RooAcceptReject.cxx.
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virtual |
Destructor.
Definition at line 166 of file RooAcceptReject.cxx.
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protected |
Add a trial event to our cache and update our estimates of the function maximum value and integral.
Definition at line 298 of file RooAcceptReject.cxx.
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inlinevirtual |
Reimplemented from RooAbsNumGenerator.
Definition at line 47 of file RooAcceptReject.h.
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inlinevirtual |
Reimplemented from RooAbsNumGenerator.
Definition at line 46 of file RooAcceptReject.h.
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inlinevirtual |
Implements RooAbsNumGenerator.
Definition at line 35 of file RooAcceptReject.h.
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virtual |
Return a pointer to a generated event.
The caller does not own the event and it will be overwritten by a subsequent call. The input parameter 'remaining' should contain your best guess at the total number of subsequent events you will request.
Implements RooAbsNumGenerator.
Definition at line 179 of file RooAcceptReject.cxx.
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virtual |
Reimplemented from RooAbsNumGenerator.
Definition at line 330 of file RooAcceptReject.cxx.
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protected |
Scan through events in the cache which have not been used yet, looking for the first accepted one which is added to the specified container.
Return a pointer to the accepted event, or else zero if we use up the cache before we accept an event. The caller does not own the event and it will be overwritten by a subsequent call.
Definition at line 269 of file RooAcceptReject.cxx.
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staticprotected |
Register RooIntegrator1D, is parameters and capabilities with RooNumIntFactory.
Definition at line 62 of file RooAcceptReject.cxx.
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friend |
Definition at line 52 of file RooAcceptReject.h.
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protected |
Definition at line 59 of file RooAcceptReject.h.
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protected |
Definition at line 62 of file RooAcceptReject.h.
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protected |
Definition at line 58 of file RooAcceptReject.h.
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protected |
Definition at line 58 of file RooAcceptReject.h.
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protected |
Definition at line 60 of file RooAcceptReject.h.
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protected |
Definition at line 66 of file RooAcceptReject.h.
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protected |
Definition at line 63 of file RooAcceptReject.h.
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protected |
Definition at line 64 of file RooAcceptReject.h.
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protected |
Definition at line 59 of file RooAcceptReject.h.
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protected |
Definition at line 61 of file RooAcceptReject.h.