GRSISort "v4.0.0.5"
An extension of the ROOT analysis Framework
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Public Member Functions | Protected Member Functions | Private Attributes | Friends | List of all members
TSinglePeak Class Referenceabstract
Fitting & Analysis

Detailed Description

This is the base class for anything that is used to fit things that resemble "peaks" in data. Any derived classes must implement functions to

  • initialize parameters and parameter names,
  • set the total function and peak function, The centroid of the peak should always be parameter 1.

Definition at line 36 of file TSinglePeak.h.

Public Member Functions

 TSinglePeak ()=default
 
 TSinglePeak (const TSinglePeak &)=default
 
 TSinglePeak (TSinglePeak &&) noexcept=default
 
 ~TSinglePeak ()=default
 
Double_t Area () const
 
Double_t AreaErr () const
 
virtual Double_t Centroid () const =0
 
virtual void Centroid (const Double_t &centroid)=0
 
virtual Double_t CentroidErr () const =0
 
void Draw (Option_t *opt="") override
 
virtual void DrawBackground (Option_t *opt="")
 
virtual void DrawComponents (Option_t *opt="")
 
virtual Double_t FWHM ()
 
virtual Double_t FWHMErr ()
 
TF1 * GetBackgroundFunction ()
 
Double_t GetChi2 () const
 
TF1 * GetFitFunction () const
 
TF1 * GetGlobalBackground () const
 
Color_t GetLineColor ()
 
Style_t GetLineStyle ()
 
Double_t GetNDF () const
 
Int_t GetNParameters () const
 
TF1 * GetPeakFunction () const
 
Double_t GetReducedChi2 () const
 
virtual void InitializeParameters (TH1 *, const double &, const double &)
 
virtual void InitParNames ()
 
bool IsBackgroundParameter (const Int_t &par) const
 
bool IsPeakParameter (const Int_t &par) const
 
TSinglePeak & operator= (const TSinglePeak &)=default
 
TSinglePeak & operator= (TSinglePeak &&) noexcept=default
 
bool ParameterSetByUser (int par)
 
void Print (Option_t *="") const override
 
virtual void PrintParameters () const
 
void SetArea (const Double_t &area)
 
void SetAreaErr (const Double_t &area_err)
 
void SetGlobalBackground (TF1 *background)
 
void SetLineColor (Color_t color)
 
void SetLineStyle (Style_t style)
 
void SetListOfBGPar (const std::vector< bool > &list_of_bg_par)
 
virtual Double_t Sigma () const =0
 
virtual Double_t SigmaErr () const =0
 
void UpdateBackgroundParameters ()
 
void UpdatePeakParameters ()
 
virtual Double_t Width () const =0
 

Protected Member Functions

virtual Double_t BackgroundFunction (Double_t *, Double_t *)
 
virtual Double_t PeakFunction (Double_t *, Double_t *)
 
virtual Double_t PeakOnGlobalFunction (Double_t *dim, Double_t *par)
 
void SetChi2 (const Double_t &chi2)
 
void SetFitFunction (TF1 *function)
 
void SetNDF (const Int_t &ndf)
 
void SetPeakFunction (TF1 *function)
 
Double_t TotalFunction (Double_t *dim, Double_t *par)
 

Private Attributes

Double_t fArea {-0.1}
 
Double_t fAreaErr {0.0}
 
TF1 * fBackgroundFunction {nullptr}
 
Double_t fChi2 {std::numeric_limits<Double_t>::quiet_NaN()}
 
TF1 * fGlobalBackground {nullptr}
 
std::vector< bool > fListOfBGPars
 
Int_t fNDF {0}
 
TF1 * fPeakFunction {nullptr}
 
TF1 * fPeakOnGlobal {nullptr}
 
TF1 * fTotalFunction {nullptr}
 

Friends

class TPeakFitter
 
+ Inheritance diagram for TSinglePeak:
+ Collaboration diagram for TSinglePeak:

Constructor & Destructor Documentation

◆ TSinglePeak() [1/3]

TSinglePeak::TSinglePeak ( )
default

◆ TSinglePeak() [2/3]

TSinglePeak::TSinglePeak ( const TSinglePeak & )
default

◆ TSinglePeak() [3/3]

TSinglePeak::TSinglePeak ( TSinglePeak && )
defaultnoexcept

◆ ~TSinglePeak()

TSinglePeak::~TSinglePeak ( )
default

Member Function Documentation

◆ Area()

Double_t TSinglePeak::Area ( ) const
inline

Definition at line 57 of file TSinglePeak.h.

References fArea.

Referenced by TSourceTab::Good(), main(), and Print().

◆ AreaErr()

Double_t TSinglePeak::AreaErr ( ) const
inline

Definition at line 58 of file TSinglePeak.h.

References fAreaErr.

Referenced by TSourceTab::Good(), main(), and Print().

◆ BackgroundFunction()

virtual Double_t TSinglePeak::BackgroundFunction ( Double_t * ,
Double_t *  )
inlineprotectedvirtual

Reimplemented in TAB3Peak, TABPeak, and TRWPeak.

Definition at line 105 of file TSinglePeak.h.

Referenced by GetBackgroundFunction(), and TotalFunction().

◆ Centroid() [1/2]

virtual Double_t TSinglePeak::Centroid ( ) const
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Referenced by FWHM(), and Print().

◆ Centroid() [2/2]

virtual void TSinglePeak::Centroid ( const Double_t & centroid)
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Referenced by TBGSubtraction::DoPeakFit().

◆ CentroidErr()

virtual Double_t TSinglePeak::CentroidErr ( ) const
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Referenced by Print().

◆ Draw()

void TSinglePeak::Draw ( Option_t * opt = "")
override

Definition at line 106 of file TSinglePeak.cxx.

References fGlobalBackground, fPeakOnGlobal, fTotalFunction, and PeakOnGlobalFunction().

Referenced by TBGSubtraction::DrawPeak().

◆ DrawBackground()

virtual void TSinglePeak::DrawBackground ( Option_t * opt = "")
inlinevirtual

Definition at line 71 of file TSinglePeak.h.

References fGlobalBackground.

◆ DrawComponents()

void TSinglePeak::DrawComponents ( Option_t * opt = "")
virtual

This behaves like the draw function except each daughter class decides how to break the draw into multiple components. This means that we should delegate this task to the daughter class.

Reimplemented in TAB3Peak, and TABPeak.

Definition at line 71 of file TSinglePeak.cxx.

◆ FWHM()

Double_t TSinglePeak::FWHM ( )
virtual

Return the full width at half-maximum.

Definition at line 77 of file TSinglePeak.cxx.

References Centroid(), fPeakFunction, Sigma(), and UpdatePeakParameters().

Referenced by FWHMErr().

◆ FWHMErr()

Double_t TSinglePeak::FWHMErr ( )
virtual

Return the uncertainty in the full width at half-maximum. Since it is complicated to do this without knowledge of the underlying fit function, we simply assume that the (relative) uncertainty in the FWHM is the same as the uncertainty in sigma.

Definition at line 92 of file TSinglePeak.cxx.

References FWHM(), Sigma(), and SigmaErr().

◆ GetBackgroundFunction()

TF1 * TSinglePeak::GetBackgroundFunction ( )

Definition at line 28 of file TSinglePeak.cxx.

References BackgroundFunction(), fBackgroundFunction, and fTotalFunction.

◆ GetChi2()

Double_t TSinglePeak::GetChi2 ( ) const
inline

Definition at line 91 of file TSinglePeak.h.

References fChi2.

◆ GetFitFunction()

TF1 * TSinglePeak::GetFitFunction ( ) const
inline

Definition at line 78 of file TSinglePeak.h.

References fTotalFunction.

Referenced by TGauss::TGauss(), TAB3Peak::Centroid(), TAB3Peak::Centroid(), TABPeak::Centroid(), TABPeak::Centroid(), TGauss::Centroid(), TGauss::Centroid(), TRWPeak::Centroid(), TRWPeak::Centroid(), TAB3Peak::CentroidErr(), TABPeak::CentroidErr(), TGauss::CentroidErr(), TRWPeak::CentroidErr(), TAB3Peak::DrawComponents(), TABPeak::DrawComponents(), TAB3Peak::InitializeParameters(), TABPeak::InitializeParameters(), TGauss::InitializeParameters(), TRWPeak::InitializeParameters(), TAB3Peak::InitParNames(), TABPeak::InitParNames(), TGauss::InitParNames(), TRWPeak::InitParNames(), main(), TAB3Peak::OneHitPeakOnGlobalFunction(), TABPeak::OneHitPeakOnGlobalFunction(), TAB3Peak::Sigma(), TABPeak::Sigma(), TGauss::Sigma(), TRWPeak::Sigma(), TAB3Peak::SigmaErr(), TABPeak::SigmaErr(), TGauss::SigmaErr(), TRWPeak::SigmaErr(), TAB3Peak::ThreeHitPeakOnGlobalFunction(), TAB3Peak::TwoHitPeakOnGlobalFunction(), TABPeak::TwoHitPeakOnGlobalFunction(), TAB3Peak::Width(), TABPeak::Width(), and TRWPeak::Width().

◆ GetGlobalBackground()

TF1 * TSinglePeak::GetGlobalBackground ( ) const
inline

Definition at line 80 of file TSinglePeak.h.

References fGlobalBackground.

Referenced by TAB3Peak::DrawComponents(), TABPeak::DrawComponents(), TAB3Peak::OneHitPeakOnGlobalFunction(), TABPeak::OneHitPeakOnGlobalFunction(), TAB3Peak::ThreeHitPeakOnGlobalFunction(), TAB3Peak::TwoHitPeakOnGlobalFunction(), and TABPeak::TwoHitPeakOnGlobalFunction().

◆ GetLineColor()

Color_t TSinglePeak::GetLineColor ( )
inline

Definition at line 100 of file TSinglePeak.h.

References fTotalFunction.

Referenced by TAB3Peak::DrawComponents(), and TABPeak::DrawComponents().

◆ GetLineStyle()

Style_t TSinglePeak::GetLineStyle ( )
inline

Definition at line 101 of file TSinglePeak.h.

References fTotalFunction.

◆ GetNDF()

Double_t TSinglePeak::GetNDF ( ) const
inline

Definition at line 92 of file TSinglePeak.h.

References fNDF.

◆ GetNParameters()

Int_t TSinglePeak::GetNParameters ( ) const

Definition at line 20 of file TSinglePeak.cxx.

References fTotalFunction.

◆ GetPeakFunction()

TF1 * TSinglePeak::GetPeakFunction ( ) const
inline

Definition at line 79 of file TSinglePeak.h.

References fPeakFunction.

◆ GetReducedChi2()

Double_t TSinglePeak::GetReducedChi2 ( ) const
inline

Definition at line 93 of file TSinglePeak.h.

References fChi2, and fNDF.

Referenced by main().

◆ InitializeParameters()

virtual void TSinglePeak::InitializeParameters ( TH1 * ,
const double & ,
const double &  )
inlinevirtual

Reimplemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Definition at line 48 of file TSinglePeak.h.

◆ InitParNames()

virtual void TSinglePeak::InitParNames ( )
inlinevirtual

Reimplemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Definition at line 47 of file TSinglePeak.h.

◆ IsBackgroundParameter()

bool TSinglePeak::IsBackgroundParameter ( const Int_t & par) const

Definition at line 4 of file TSinglePeak.cxx.

References fListOfBGPars.

Referenced by IsPeakParameter().

◆ IsPeakParameter()

bool TSinglePeak::IsPeakParameter ( const Int_t & par) const

Definition at line 15 of file TSinglePeak.cxx.

References IsBackgroundParameter().

◆ operator=() [1/2]

TSinglePeak & TSinglePeak::operator= ( const TSinglePeak & )
default

◆ operator=() [2/2]

TSinglePeak & TSinglePeak::operator= ( TSinglePeak && )
defaultnoexcept

◆ ParameterSetByUser()

bool TSinglePeak::ParameterSetByUser ( int par)

This function checks if a parameter or its limits have been set to a non-zero value. In case that the user fixed a parameter to be zero, the limits are non-zero, so this case is covered as well.

Definition at line 129 of file TSinglePeak.cxx.

References fTotalFunction.

Referenced by TAB3Peak::InitializeParameters(), TABPeak::InitializeParameters(), TGauss::InitializeParameters(), and TRWPeak::InitializeParameters().

◆ PeakFunction()

virtual Double_t TSinglePeak::PeakFunction ( Double_t * ,
Double_t *  )
inlineprotectedvirtual

Reimplemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Definition at line 106 of file TSinglePeak.h.

Referenced by PeakOnGlobalFunction(), and TotalFunction().

◆ PeakOnGlobalFunction()

Double_t TSinglePeak::PeakOnGlobalFunction ( Double_t * dim,
Double_t * par )
protectedvirtual

Definition at line 99 of file TSinglePeak.cxx.

References fGlobalBackground, fTotalFunction, and PeakFunction().

Referenced by Draw().

◆ Print()

void TSinglePeak::Print ( Option_t * = "") const
override

Definition at line 37 of file TSinglePeak.cxx.

References Area(), AreaErr(), Centroid(), and CentroidErr().

◆ PrintParameters()

void TSinglePeak::PrintParameters ( ) const
virtual

Definition at line 45 of file TSinglePeak.cxx.

References fTotalFunction.

◆ SetArea()

void TSinglePeak::SetArea ( const Double_t & area)
inline

Definition at line 54 of file TSinglePeak.h.

References fArea.

◆ SetAreaErr()

void TSinglePeak::SetAreaErr ( const Double_t & area_err)
inline

Definition at line 55 of file TSinglePeak.h.

References fAreaErr.

◆ SetChi2()

void TSinglePeak::SetChi2 ( const Double_t & chi2)
inlineprotected

Definition at line 109 of file TSinglePeak.h.

References fChi2.

◆ SetFitFunction()

void TSinglePeak::SetFitFunction ( TF1 * function)
inlineprotected

Definition at line 112 of file TSinglePeak.h.

References fTotalFunction.

Referenced by TAB3Peak::Centroid(), TABPeak::Centroid(), TGauss::Centroid(), and TRWPeak::Centroid().

◆ SetGlobalBackground()

void TSinglePeak::SetGlobalBackground ( TF1 * background)
inline

Definition at line 82 of file TSinglePeak.h.

References fGlobalBackground.

◆ SetLineColor()

void TSinglePeak::SetLineColor ( Color_t color)
inline

Definition at line 97 of file TSinglePeak.h.

References fTotalFunction.

Referenced by TSourceTab::Add().

◆ SetLineStyle()

void TSinglePeak::SetLineStyle ( Style_t style)
inline

Definition at line 98 of file TSinglePeak.h.

References fTotalFunction.

◆ SetListOfBGPar()

void TSinglePeak::SetListOfBGPar ( const std::vector< bool > & list_of_bg_par)
inline

Definition at line 51 of file TSinglePeak.h.

References fListOfBGPars.

Referenced by TAB3Peak::Centroid(), TABPeak::Centroid(), TGauss::Centroid(), and TRWPeak::Centroid().

◆ SetNDF()

void TSinglePeak::SetNDF ( const Int_t & ndf)
inlineprotected

Definition at line 110 of file TSinglePeak.h.

References fNDF.

◆ SetPeakFunction()

void TSinglePeak::SetPeakFunction ( TF1 * function)
inlineprotected

Definition at line 113 of file TSinglePeak.h.

References fPeakFunction.

Referenced by TAB3Peak::Centroid(), TABPeak::Centroid(), TGauss::Centroid(), and TRWPeak::Centroid().

◆ Sigma()

virtual Double_t TSinglePeak::Sigma ( ) const
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Referenced by FWHM(), and FWHMErr().

◆ SigmaErr()

virtual Double_t TSinglePeak::SigmaErr ( ) const
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Referenced by FWHMErr().

◆ TotalFunction()

Double_t TSinglePeak::TotalFunction ( Double_t * dim,
Double_t * par )
protected

Definition at line 56 of file TSinglePeak.cxx.

References BackgroundFunction(), and PeakFunction().

Referenced by TAB3Peak::Centroid(), TABPeak::Centroid(), TGauss::Centroid(), and TRWPeak::Centroid().

◆ UpdateBackgroundParameters()

void TSinglePeak::UpdateBackgroundParameters ( )

Definition at line 66 of file TSinglePeak.cxx.

References fBackgroundFunction, and fTotalFunction.

◆ UpdatePeakParameters()

void TSinglePeak::UpdatePeakParameters ( )

Definition at line 61 of file TSinglePeak.cxx.

References fPeakFunction, and fTotalFunction.

Referenced by FWHM().

◆ Width()

virtual Double_t TSinglePeak::Width ( ) const
pure virtual

Implemented in TAB3Peak, TABPeak, TGauss, and TRWPeak.

Friends And Related Symbol Documentation

◆ TPeakFitter

friend class TPeakFitter
friend

Definition at line 38 of file TSinglePeak.h.

Member Data Documentation

◆ fArea

Double_t TSinglePeak::fArea {-0.1}
private

Definition at line 123 of file TSinglePeak.h.

Referenced by Area(), and SetArea().

◆ fAreaErr

Double_t TSinglePeak::fAreaErr {0.0}
private

Definition at line 124 of file TSinglePeak.h.

Referenced by AreaErr(), and SetAreaErr().

◆ fBackgroundFunction

TF1* TSinglePeak::fBackgroundFunction {nullptr}
private

Definition at line 117 of file TSinglePeak.h.

Referenced by GetBackgroundFunction(), and UpdateBackgroundParameters().

◆ fChi2

Double_t TSinglePeak::fChi2 {std::numeric_limits<Double_t>::quiet_NaN()}
private

Definition at line 125 of file TSinglePeak.h.

Referenced by GetChi2(), GetReducedChi2(), and SetChi2().

◆ fGlobalBackground

TF1* TSinglePeak::fGlobalBackground {nullptr}
private

Definition at line 118 of file TSinglePeak.h.

Referenced by Draw(), DrawBackground(), GetGlobalBackground(), PeakOnGlobalFunction(), and SetGlobalBackground().

◆ fListOfBGPars

std::vector<bool> TSinglePeak::fListOfBGPars
private

Definition at line 122 of file TSinglePeak.h.

Referenced by IsBackgroundParameter(), and SetListOfBGPar().

◆ fNDF

Int_t TSinglePeak::fNDF {0}
private

Definition at line 126 of file TSinglePeak.h.

Referenced by GetNDF(), GetReducedChi2(), and SetNDF().

◆ fPeakFunction

TF1* TSinglePeak::fPeakFunction {nullptr}
private

Definition at line 120 of file TSinglePeak.h.

Referenced by FWHM(), GetPeakFunction(), SetPeakFunction(), and UpdatePeakParameters().

◆ fPeakOnGlobal

TF1* TSinglePeak::fPeakOnGlobal {nullptr}
private

Definition at line 119 of file TSinglePeak.h.

Referenced by Draw().

◆ fTotalFunction

TF1* TSinglePeak::fTotalFunction {nullptr}
private

Definition at line 116 of file TSinglePeak.h.

Referenced by Draw(), GetBackgroundFunction(), GetFitFunction(), GetLineColor(), GetLineStyle(), GetNParameters(), ParameterSetByUser(), PeakOnGlobalFunction(), PrintParameters(), SetFitFunction(), SetLineColor(), SetLineStyle(), UpdateBackgroundParameters(), and UpdatePeakParameters().