---

SctFitter::FitStrategy Class Reference

Motivated by the need to fitting rapidly, abstracted fit strategy allows different fit algorithms to be used. More...

#include <FitStrategy.h>

Inheritance diagram for SctFitter::FitStrategy:

Public Member Functions
virtual void	fitTH1 (const TH1 &hist, TF1 &fit) const=0 throw (Sct::LogicError, Sct::MathsError)
	Fit Root TH1 using the current options.
virtual void	fitTGraph (const TGraph &graph, TF1 &fit) const=0 throw (Sct::LogicError, Sct::MathsError)
	Fit Root TGraph using the current options.
virtual void	fitTGraphErrors (const TGraphErrors &graph, TF1 &fit) const=0 throw (Sct::LogicError, Sct::MathsError)
	Fit Root TGraph using the current options.
void	setOptions (string opt) throw ()
const string &	getOptions () const throw ()
virtual const string &	getName () const=0 throw ()
Protected Member Functions
	FitStrategy (string opt=string("")) throw ()
	Clients can make a FitStrategy Object.
virtual	~FitStrategy ()
	virtual destructor.
Private Attributes
string	options
	a string containing fit options for this strategy

---

Detailed Description

Motivated by the need to fitting rapidly, abstracted fit strategy allows different fit algorithms to be used.

Allows easy switch from say ROOT fitting to a custom fitter. Concrete strategies should add themselves to the map using the addToMap function, at static initialization. It is assumed that:
o The histogram errors have been set
o The function limits have been set
o The histogram is truly a TH1 (not a silly ROOT TH2 which inherits from TH1!)

Author:

Alan Barr

Date:

17/5/03

Definition at line 28 of file FitStrategy.h.

---

Constructor & Destructor Documentation

SctFitter::FitStrategy::FitStrategy (  string    opt = string("") )  throw () [protected]

Clients can make a FitStrategy Object. Definition at line 20 of file FitStrategy.cpp.

SctFitter::FitStrategy::~FitStrategy (    )  [protected, virtual]

virtual destructor. Definition at line 14 of file FitStrategy.cpp.

---

Member Function Documentation

virtual void SctFitter::FitStrategy::fitTGraph (  const TGraph &    graph, TF1 &    fit )  const throw (Sct::LogicError, Sct::MathsError) [pure virtual]

Fit Root TGraph using the current options. Parameters: hist  input histogram to be fitted fit  output Implemented in SctFitter::MinuitFitStrategy, SctFitter::NagFitStrategy, and SctFitter::RootFitStrategy.

virtual void SctFitter::FitStrategy::fitTGraphErrors (  const TGraphErrors &    graph, TF1 &    fit )  const throw (Sct::LogicError, Sct::MathsError) [pure virtual]

Fit Root TGraph using the current options. Parameters: hist  input histogram to be fitted fit  output Implemented in SctFitter::MinuitFitStrategy, SctFitter::NagFitStrategy, and SctFitter::RootFitStrategy.

virtual void SctFitter::FitStrategy::fitTH1 (  const TH1 &    hist, TF1 &    fit )  const throw (Sct::LogicError, Sct::MathsError) [pure virtual]

Fit Root TH1 using the current options. Parameters: hist  input histogram to be fitted fit  output Implemented in SctFitter::MinuitFitStrategy, SctFitter::NagFitStrategy, and SctFitter::RootFitStrategy. Referenced by SctFitter::FitAlgorithm::doFit().

virtual const string& SctFitter::FitStrategy::getName (    )  const throw () [pure virtual]

Implemented in SctFitter::MinuitFitStrategy, SctFitter::NagFitStrategy, and SctFitter::RootFitStrategy.

const string & SctFitter::FitStrategy::getOptions (    )  const throw ()

Definition at line 16 of file FitStrategy.cpp. Referenced by SctFitter::NagFitStrategy::quiet(), and SctFitter::NagFitStrategy::ranged().

void SctFitter::FitStrategy::setOptions (  string    opt )  throw ()

Definition at line 10 of file FitStrategy.cpp.

---

Field Documentation

string SctFitter::FitStrategy::options [private]

a string containing fit options for this strategy Definition at line 62 of file FitStrategy.h.

---

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

• FitStrategy.h
• FitStrategy.cpp

---