Logo ROOT   6.19/01
Reference Guide
TFoamMaxwt Class Reference

Small auxiliary class for controlling MC weight.

It provides certain measure of the "maximum weight" depending on small user-parameter "epsilon". It creates and uses 2 histograms of the TH1D class. User defines no. of bins nBin, nBin=1000 is recommended wmax defines weight range (1,wmax), it is adjusted "manually"

Definition at line 12 of file TFoamMaxwt.h.

Public Member Functions

 TFoamMaxwt ()
 Constructor for streamer. More...
 
 TFoamMaxwt (Double_t, Int_t)
 Principal user constructor. More...
 
 TFoamMaxwt (TFoamMaxwt &From)
 Explicit COPY CONSTRUCTOR (unused, so far) More...
 
virtual ~TFoamMaxwt ()
 Destructor. More...
 
void Fill (Double_t)
 Filling analyzed weight. More...
 
void GetMCeff (Double_t, Double_t &, Double_t &)
 Calculates Efficiency= aveWt/wtLim for a given tolerance level epsilon<<1 using information stored in two histograms. More...
 
void Make (Double_t, Double_t &)
 Calculates Efficiency= aveWt/wtLim for a given tolerance level epsilon<<1 To be called at the end of the MC run. More...
 
TFoamMaxwtoperator= (const TFoamMaxwt &)
 substitution = More...
 
void Reset ()
 Reseting weight analysis. 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...
 
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. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
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 abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. 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 selected pad for instance with: gROOT->SetSelectedPad(gPad). 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 const char * GetName () const
 Returns 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 const char * GetTitle () const
 Returns title of object. More...
 
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 ULong_t Hash () const
 Return hash value for this object. More...
 
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. 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...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
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 void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. 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...
 
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. 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 Attributes

TH1DfWtHst1
 Histogram of the weight wt. More...
 
TH1DfWtHst2
 Histogram of wt filled with wt. More...
 

Private Attributes

Int_t fnBin
 No. of bins on the weight distribution. More...
 
Double_t fNent
 No. of MC events. More...
 
Double_t fwmax
 Maximum analyzed weight. More...
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- 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...
 
- 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 ()
 

#include <TFoamMaxwt.h>

Inheritance diagram for TFoamMaxwt:
[legend]

Constructor & Destructor Documentation

◆ TFoamMaxwt() [1/3]

TFoamMaxwt::TFoamMaxwt ( )

Constructor for streamer.

Definition at line 23 of file TFoamMaxwt.cxx.

◆ TFoamMaxwt() [2/3]

TFoamMaxwt::TFoamMaxwt ( Double_t  wmax,
Int_t  nBin 
)

Principal user constructor.

Definition at line 34 of file TFoamMaxwt.cxx.

◆ TFoamMaxwt() [3/3]

TFoamMaxwt::TFoamMaxwt ( TFoamMaxwt From)

Explicit COPY CONSTRUCTOR (unused, so far)

Definition at line 48 of file TFoamMaxwt.cxx.

◆ ~TFoamMaxwt()

TFoamMaxwt::~TFoamMaxwt ( )
virtual

Destructor.

Definition at line 60 of file TFoamMaxwt.cxx.

Member Function Documentation

◆ Fill()

void TFoamMaxwt::Fill ( Double_t  wt)

Filling analyzed weight.

Definition at line 93 of file TFoamMaxwt.cxx.

◆ GetMCeff()

void TFoamMaxwt::GetMCeff ( Double_t  eps,
Double_t MCeff,
Double_t wtLim 
)

Calculates Efficiency= aveWt/wtLim for a given tolerance level epsilon<<1 using information stored in two histograms.

To be called at the end of the MC run.

Definition at line 120 of file TFoamMaxwt.cxx.

◆ Make()

void TFoamMaxwt::Make ( Double_t  eps,
Double_t MCeff 
)

Calculates Efficiency= aveWt/wtLim for a given tolerance level epsilon<<1 To be called at the end of the MC run.

Definition at line 104 of file TFoamMaxwt.cxx.

◆ operator=()

TFoamMaxwt & TFoamMaxwt::operator= ( const TFoamMaxwt From)

substitution =

Definition at line 80 of file TFoamMaxwt.cxx.

◆ Reset()

void TFoamMaxwt::Reset ( void  )

Reseting weight analysis.

Definition at line 70 of file TFoamMaxwt.cxx.

Member Data Documentation

◆ fnBin

Int_t TFoamMaxwt::fnBin
private

No. of bins on the weight distribution.

Definition at line 15 of file TFoamMaxwt.h.

◆ fNent

Double_t TFoamMaxwt::fNent
private

No. of MC events.

Definition at line 14 of file TFoamMaxwt.h.

◆ fwmax

Double_t TFoamMaxwt::fwmax
private

Maximum analyzed weight.

Definition at line 16 of file TFoamMaxwt.h.

◆ fWtHst1

TH1D* TFoamMaxwt::fWtHst1

Histogram of the weight wt.

Definition at line 18 of file TFoamMaxwt.h.

◆ fWtHst2

TH1D* TFoamMaxwt::fWtHst2

Histogram of wt filled with wt.

Definition at line 19 of file TFoamMaxwt.h.

Libraries for TFoamMaxwt:
[legend]

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