ROOT  6.06/09
Reference Guide
Public Member Functions | Private Attributes | List of all members
TStatistic Class Reference

Statistical variable, defined by its mean and variance (RMS).

Named, streamable, storable and mergeable.

Definition at line 45 of file TStatistic.h.

Public Member Functions

 TStatistic (const char *name="")
 
 TStatistic (const char *name, Int_t n, const Double_t *val, const Double_t *w=0)
 
 ~TStatistic ()
 
const char * GetName () const
 Returns name of object. More...
 
ULong_t Hash () const
 Return hash value for this object. More...
 
Long64_t GetN () const
 
Long64_t GetNeff () const
 
Double_t GetM2 () const
 
Double_t GetMean () const
 
Double_t GetMeanErr () const
 
Double_t GetRMS () const
 
Double_t GetVar () const
 
Double_t GetW () const
 
Double_t GetW2 () const
 
Int_t Merge (TCollection *in)
 
void Fill (Double_t val, Double_t w=1.)
 
void Print (Option_t *="") const
 This method must be overridden when a class wants to print itself. More...
 
void ls (Option_t *opt="") const
 The ls function lists the contents of a class on stdout. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual ~TObject ()
 TObject destructor. 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 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 pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. 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 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 UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual Option_tGetOption () const
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. 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...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
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 IsSortable () const
 
Bool_t IsOnHeap () const
 
Bool_t IsZombie () const
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. 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...
 
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...
 
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 UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. 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...
 
voidoperator new (size_t sz)
 
voidoperator new[] (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz, void *vp)
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. 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)
 
void ResetBit (UInt_t f)
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
void InvertBit (UInt_t f)
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. 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...
 
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...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 

Private Attributes

TString fName
 
Long64_t fN
 
Double_t fW
 
Double_t fW2
 
Double_t fM
 
Double_t fM2
 

Additional Inherited Members

- Public Types inherited from TObject
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)
}
 
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Protected Member Functions inherited from TObject
void MakeZombie ()
 
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 

#include <TStatistic.h>

+ Inheritance diagram for TStatistic:
+ Collaboration diagram for TStatistic:

Constructor & Destructor Documentation

TStatistic::TStatistic ( const char *  name = "")
inline

Definition at line 57 of file TStatistic.h.

TStatistic::TStatistic ( const char *  name,
Int_t  n,
const Double_t val,
const Double_t w = 0 
)
TStatistic::~TStatistic ( )
inline

Definition at line 59 of file TStatistic.h.

Member Function Documentation

void TStatistic::Fill ( Double_t  val,
Double_t  w = 1. 
)

Definition at line 48 of file TStatistic.cxx.

Referenced by testTStatistic().

Double_t TStatistic::GetM2 ( ) const
inline

Definition at line 67 of file TStatistic.h.

Double_t TStatistic::GetMean ( ) const
inline

Definition at line 68 of file TStatistic.h.

Referenced by Print(), and testTStatistic().

Double_t TStatistic::GetMeanErr ( ) const
inline

Definition at line 69 of file TStatistic.h.

Referenced by Print().

Long64_t TStatistic::GetN ( ) const
inline

Definition at line 65 of file TStatistic.h.

const char* TStatistic::GetName ( ) const
inlinevirtual

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented from TObject.

Definition at line 62 of file TStatistic.h.

Referenced by Merge().

Long64_t TStatistic::GetNeff ( ) const
inline

Definition at line 66 of file TStatistic.h.

Referenced by GetMeanErr().

Double_t TStatistic::GetRMS ( ) const
inline

Definition at line 70 of file TStatistic.h.

Referenced by Print(), and testTStatistic().

Double_t TStatistic::GetVar ( ) const
inline

Definition at line 71 of file TStatistic.h.

Referenced by GetMeanErr(), and GetRMS().

Double_t TStatistic::GetW ( ) const
inline

Definition at line 72 of file TStatistic.h.

Referenced by testTStatistic().

Double_t TStatistic::GetW2 ( ) const
inline

Definition at line 73 of file TStatistic.h.

Referenced by testTStatistic().

ULong_t TStatistic::Hash ( ) const
inlinevirtual

Return hash value for this object.

Reimplemented from TObject.

Definition at line 63 of file TStatistic.h.

void TStatistic::ls ( Option_t option = "") const
inlinevirtual

The ls function lists the contents of a class on stdout.

Ls output is typically much less verbose then Dump().

Reimplemented from TObject.

Definition at line 83 of file TStatistic.h.

Int_t TStatistic::Merge ( TCollection in)

Definition at line 85 of file TStatistic.cxx.

Referenced by testTStatistic().

void TStatistic::Print ( Option_t option = "") const
virtual

This method must be overridden when a class wants to print itself.

Reimplemented from TObject.

Definition at line 76 of file TStatistic.cxx.

Referenced by ls(), and testTStatistic().

Member Data Documentation

Double_t TStatistic::fM
private

Definition at line 52 of file TStatistic.h.

Referenced by Fill(), and Merge().

Double_t TStatistic::fM2
private

Definition at line 53 of file TStatistic.h.

Referenced by Fill(), GetM2(), and Merge().

Long64_t TStatistic::fN
private

Definition at line 49 of file TStatistic.h.

Referenced by Fill(), GetN(), Merge(), and Print().

TString TStatistic::fName
private

Definition at line 48 of file TStatistic.h.

Referenced by GetName(), and Print().

Double_t TStatistic::fW
private

Definition at line 50 of file TStatistic.h.

Referenced by Fill(), GetW(), and Merge().

Double_t TStatistic::fW2
private

Definition at line 51 of file TStatistic.h.

Referenced by Fill(), GetNeff(), GetW2(), and Merge().


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