#include <ZDCFitWrapper.h>

Inheritance diagram for ZDCFitExpFermiLinearFixedTaus:

Collaboration diagram for ZDCFitExpFermiLinearFixedTaus:

Public Member Functions
	ZDCFitExpFermiLinearFixedTaus (const std::string &tag, float tmin, float tmax, float tau1, float tau2)
	~ZDCFitExpFermiLinearFixedTaus ()
virtual void	DoInitialize (float initialAmp, float initialT0, float ampMin, float ampMax) override
virtual void	SetT0FitLimits (float tMin, float tMax) override
virtual void	ConstrainFit () override
virtual void	UnconstrainFit () override
virtual float	GetAmplitude () const override
virtual float	GetAmpError () const override
virtual float	GetTau1 () const override
virtual float	GetTau2 () const override
virtual float	GetTime () const override
virtual float	GetShapeParameter (size_t index) const override
virtual float	GetBkgdMaxFraction () const override
virtual double	operator() (const double x, const double p) override
void	Initialize (float initialAmp, float initialT0, float ampMin, float ampMax)
void	Initialize (float initialAmp, float initialT0, float ampMin, float ampMax, float fitTmin, float fitTmax, float fitTRef)
void	SetAmpMinMax (float minAmp, float maxAmp)
void	SetT0Range (float t0Min, float t0Max)
float	GetMinAmp () const
float	GetMaxAmp () const
float	GetTMin () const
float	GetTMax () const
float	GetT0Min () const
float	GetT0Max () const
float	GetTMinAdjust () const
virtual std::shared_ptr< TF1 >	GetWrapperTF1 ()
virtual const TF1 *	GetWrapperTF1 () const
virtual TF1 *	GetWrapperTF1RawPtr () const

Private Attributes
float	m_tau1
float	m_tau2
float	m_norm
float	m_timeCorr
std::shared_ptr< TF1 >	m_expFermiFunc
std::shared_ptr< TF1 >	m_wrapperTF1 {}
float	m_tmin {0}
float	m_tmax {0}
float	m_ampMin {0}
float	m_ampMax {0}
float	m_t0Min {0}
float	m_t0Max {0}
bool	m_adjTLimitsEvent {false}
float	m_tminAdjust {0}
float	m_tempTmin {0}
float	m_tempTmax {0}

Detailed Description

Definition at line 784 of file ZDCFitWrapper.h.

Constructor & Destructor Documentation

◆ ZDCFitExpFermiLinearFixedTaus()

ZDCFitExpFermiLinearFixedTaus::ZDCFitExpFermiLinearFixedTaus	(	const std::string &	tag,
		float	tmin,
		float	tmax,
		float	tau1,
		float	tau2 )

Definition at line 683 of file ZDCFitWrapper.cxx.

                                                                                                                                 :
  ZDCFitWrapper(std::make_shared<TF1>(("ExpFermiFixedTaus" + tag).c_str(), this, tmin, tmax, 4)),
  m_tau1(tau1), m_tau2(tau2)
{
  std::shared_ptr<TF1> theTF1 = GetWrapperTF1();
 
  // BAC, parameter 0 limits now is set in DoInitialize
  theTF1->SetParLimits(1, tmin, tmax);
 
  theTF1->SetParName(0, "Amp");
  theTF1->SetParName(1, "T0");
  theTF1->SetParName(2, "s_{b}");
  theTF1->SetParName(3, "c_{b}");
 
  // Now create the reference function that we use to evaluate ExpFermiFit more efficiently
  //
  std::string funcNameRefFunc = "ExpFermiFixedTausRefFunc" + tag;
 
  m_expFermiFunc = std::make_shared<TF1>(funcNameRefFunc.c_str(), ZDCFermiExpFit, -50, 100, 5);
 
  m_expFermiFunc->SetParameter(0, 1);
  m_expFermiFunc->SetParameter(1, 0);
  m_expFermiFunc->SetParameter(2, m_tau1);
  m_expFermiFunc->SetParameter(3, m_tau2);
  m_expFermiFunc->FixParameter(4, 0);
 
  m_norm = 1. / m_expFermiFunc->GetMaximum();
  m_timeCorr = m_tau1 * std::log(m_tau2 / m_tau1 - 1.0);
}

◆ ~ZDCFitExpFermiLinearFixedTaus()

ZDCFitExpFermiLinearFixedTaus::~ZDCFitExpFermiLinearFixedTaus ( )

inline

Definition at line 799 of file ZDCFitWrapper.h.

799{}

Member Function Documentation

◆ ConstrainFit()

void ZDCFitExpFermiLinearFixedTaus::ConstrainFit ( )

overridevirtual

Implements ZDCFitWrapper.

Definition at line 713 of file ZDCFitWrapper.cxx.

{
  // We force the linear terms to zero
  //
  std::shared_ptr<TF1> theTF1 = GetWrapperTF1();
 
  theTF1->FixParameter(2, 0);
  theTF1->FixParameter(3, 0);
}

◆ DoInitialize()

void ZDCFitExpFermiLinearFixedTaus::DoInitialize	(	float	initialAmp,
		float	initialT0,
		float	ampMin,
		float	ampMax )

overridevirtual

Implements ZDCFitWrapper.

Definition at line 730 of file ZDCFitWrapper.cxx.

{
  float slope     = std::abs(0.1 * initialAmp / initialT0);
  float intercept = std::abs(0.1 * initialAmp);
  GetWrapperTF1()->SetParLimits(2, -slope    , slope    );
  GetWrapperTF1()->SetParLimits(3, -intercept, intercept);
 
  GetWrapperTF1()->SetParameter(0, initialAmp);
  GetWrapperTF1()->SetParameter(1, initialT0);
  GetWrapperTF1()->SetParameter(2, 0);
  GetWrapperTF1()->SetParameter(3, 0);
 
  GetWrapperTF1()->SetParLimits(0, ampMin, ampMax);
 
  double ampStep = std::min(0.05*initialAmp, std::abs(ampMax - initialAmp)/2.);
 
  GetWrapperTF1()->SetParError(0, ampStep);
  GetWrapperTF1()->SetParError(1, 1);
  GetWrapperTF1()->SetParError(2, 1);
  GetWrapperTF1()->SetParError(3, 0.5);
}

◆ GetAmpError()

virtual float ZDCFitExpFermiLinearFixedTaus::GetAmpError ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 808 of file ZDCFitWrapper.h.

808{return GetWrapperTF1()->GetParError(0); }

◆ GetAmplitude()

virtual float ZDCFitExpFermiLinearFixedTaus::GetAmplitude ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 807 of file ZDCFitWrapper.h.

807{return GetWrapperTF1()->GetParameter(0); }

◆ GetBkgdMaxFraction()

virtual float ZDCFitExpFermiLinearFixedTaus::GetBkgdMaxFraction ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 824 of file ZDCFitWrapper.h.

  {
    const TF1* theTF1 = ZDCFitWrapper::GetWrapperTF1();
    double amp = theTF1->GetParameter(0);
    double slope = theTF1->GetParameter(2);
 
    double background = slope * GetTime();
    return background / amp;
  }

◆ GetMaxAmp()

float ZDCFitWrapper::GetMaxAmp ( ) const

inlineinherited

Definition at line 87 of file ZDCFitWrapper.h.

87{return m_ampMax;}

ZDCFitWrapper::m_ampMax

float m_ampMax

Definition ZDCFitWrapper.h:27

◆ GetMinAmp()

float ZDCFitWrapper::GetMinAmp ( ) const

inlineinherited

Definition at line 86 of file ZDCFitWrapper.h.

86{return m_ampMin;}

ZDCFitWrapper::m_ampMin

float m_ampMin

Definition ZDCFitWrapper.h:26

◆ GetShapeParameter()

virtual float ZDCFitExpFermiLinearFixedTaus::GetShapeParameter ( size_t index ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 817 of file ZDCFitWrapper.h.

  {
    if (index == 0) return m_tau1;
    else if (index == 1) return m_tau2;
    else throw std::runtime_error("Fit parameter does not exist.");
  }

◆ GetT0Max()

float ZDCFitWrapper::GetT0Max ( ) const

inlineinherited

Definition at line 97 of file ZDCFitWrapper.h.

                         {
    if (m_adjTLimitsEvent) return m_tempTmax;
    else return m_t0Max;
  }

◆ GetT0Min()

float ZDCFitWrapper::GetT0Min ( ) const

inlineinherited

Definition at line 92 of file ZDCFitWrapper.h.

                         {
    if (m_adjTLimitsEvent) return m_tempTmin;
    else return m_t0Min;
  }

◆ GetTau1()

virtual float ZDCFitExpFermiLinearFixedTaus::GetTau1 ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 810 of file ZDCFitWrapper.h.

810{return m_tau1;}

◆ GetTau2()

virtual float ZDCFitExpFermiLinearFixedTaus::GetTau2 ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 811 of file ZDCFitWrapper.h.

811{return m_tau2;}

◆ GetTime()

virtual float ZDCFitExpFermiLinearFixedTaus::GetTime ( ) const

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 813 of file ZDCFitWrapper.h.

                                         {
    return GetWrapperTF1()->GetParameter(1) + m_timeCorr; // Correct the time to the maximum
  }

◆ GetTMax()

float ZDCFitWrapper::GetTMax ( ) const

inlineinherited

Definition at line 90 of file ZDCFitWrapper.h.

90{return m_tmax;}

ZDCFitWrapper::m_tmax

float m_tmax

Definition ZDCFitWrapper.h:24

◆ GetTMin()

float ZDCFitWrapper::GetTMin ( ) const

inlineinherited

Definition at line 89 of file ZDCFitWrapper.h.

89{return m_tmin;}

ZDCFitWrapper::m_tmin

float m_tmin

Definition ZDCFitWrapper.h:23

◆ GetTMinAdjust()

float ZDCFitWrapper::GetTMinAdjust ( ) const

inlineinherited

Definition at line 102 of file ZDCFitWrapper.h.

102{return m_tminAdjust;}

ZDCFitWrapper::m_tminAdjust

float m_tminAdjust

Definition ZDCFitWrapper.h:33

◆ GetWrapperTF1() [1/2]

virtual std::shared_ptr< TF1 > ZDCFitWrapper::GetWrapperTF1 ( )

inlinevirtualinherited

Definition at line 110 of file ZDCFitWrapper.h.

110{return m_wrapperTF1;}

ZDCFitWrapper::m_wrapperTF1

std::shared_ptr< TF1 > m_wrapperTF1

Definition ZDCFitWrapper.h:21

◆ GetWrapperTF1() [2/2]

virtual const TF1 * ZDCFitWrapper::GetWrapperTF1 ( ) const

inlinevirtualinherited

Definition at line 111 of file ZDCFitWrapper.h.

111{return m_wrapperTF1.get();}

◆ GetWrapperTF1RawPtr()

virtual TF1 * ZDCFitWrapper::GetWrapperTF1RawPtr ( ) const

inlinevirtualinherited

Definition at line 112 of file ZDCFitWrapper.h.

112{return m_wrapperTF1.get();}

◆ Initialize() [1/2]

void ZDCFitWrapper::Initialize	(	float	initialAmp,
		float	initialT0,
		float	ampMin,
		float	ampMax )

inherited

Definition at line 9 of file ZDCFitWrapper.cxx.

{
  // Clear the errors on the TF1 because retaining the errors seems to affect 
  //   the convergence of fits
  //
  unsigned int npar = GetWrapperTF1()->GetNpar();
  std::vector<double> zeroVec(npar, 0.0);
  GetWrapperTF1()->SetParErrors(&zeroVec[0]);
 
  // If we adjusted the time range on the previous event, restore to default
  //
  if (m_adjTLimitsEvent) {
    SetT0FitLimits(m_t0Min, m_t0Max);
 
    m_adjTLimitsEvent = false;
    m_tminAdjust = 0;
  }
 
  SetAmpMinMax(ampMin, ampMax);
 
  DoInitialize(initialAmp, initialT0, ampMin, ampMax);
}

◆ Initialize() [2/2]

void ZDCFitWrapper::Initialize	(	float	initialAmp,
		float	initialT0,
		float	ampMin,
		float	ampMax,
		float	fitTmin,
		float	fitTmax,
		float	fitTRef )

inherited

Definition at line 32 of file ZDCFitWrapper.cxx.

{
  // Clear the errors on the TF1 because retaining the errors seems to affect 
  //   the convergence of fits
  //
  unsigned int npar = GetWrapperTF1()->GetNpar();
  std::vector<double> zeroVec(npar, 0.0);
  GetWrapperTF1()->SetParErrors(&zeroVec[0]);
 
  m_adjTLimitsEvent = true;
 
  m_tminAdjust = fitTRef; // Note: this is the time corresponding to the sample used for presample subtraction 
 
  m_tempTmin = std::max(m_t0Min, fitTmin);
  m_tempTmax = std::min(m_t0Max, fitTmax);
  
  SetAmpMinMax(ampMin, ampMax);
  SetT0FitLimits(m_tempTmin, m_tempTmax);
 
  DoInitialize(initialAmp, initialT0, ampMin, ampMax);
}

◆ operator()()

virtual double ZDCFitExpFermiLinearFixedTaus::operator()	(	const double *	x,
		const double *	p )

inlineoverridevirtual

Implements ZDCFitWrapper.

Definition at line 834 of file ZDCFitWrapper.h.

  {
    double amp    = p[0];
    double t0     = p[1];
    double deltaT = x[0] - t0;
 
    double bckgd = p[2] * x[0] + p[3];
 
    double expFermi =  amp * m_norm * m_expFermiFunc->operator()(deltaT);
 
    return expFermi + bckgd;
  }

◆ SetAmpMinMax()

void ZDCFitWrapper::SetAmpMinMax	(	float	minAmp,
		float	maxAmp )

inlineinherited

Definition at line 63 of file ZDCFitWrapper.h.

  {
    m_ampMin = minAmp;
    m_ampMax = maxAmp;
  }

◆ SetT0FitLimits()

void ZDCFitExpFermiLinearFixedTaus::SetT0FitLimits	(	float	tMin,
		float	tMax )

overridevirtual

Implements ZDCFitWrapper.

Definition at line 752 of file ZDCFitWrapper.cxx.

{
  std::shared_ptr<TF1> theTF1 = GetWrapperTF1();
  theTF1->SetParLimits(1, t0Min, t0Max);
}

◆ SetT0Range()

void ZDCFitWrapper::SetT0Range	(	float	t0Min,
		float	t0Max )

inlineinherited

Definition at line 69 of file ZDCFitWrapper.h.

  {
    m_t0Min = t0Min;
    m_t0Max = t0Max;
 
    SetT0FitLimits(t0Min, t0Max);
  }

◆ UnconstrainFit()

void ZDCFitExpFermiLinearFixedTaus::UnconstrainFit ( )

overridevirtual

Implements ZDCFitWrapper.

Definition at line 723 of file ZDCFitWrapper.cxx.

{
  std::shared_ptr<TF1> theTF1 = GetWrapperTF1(); 
  theTF1->ReleaseParameter(2);
  theTF1->ReleaseParameter(3);
}

Member Data Documentation

◆ m_adjTLimitsEvent

bool ZDCFitWrapper::m_adjTLimitsEvent {false}

privateinherited

Definition at line 32 of file ZDCFitWrapper.h.

32{false};

◆ m_ampMax

float ZDCFitWrapper::m_ampMax {0}

privateinherited

Definition at line 27 of file ZDCFitWrapper.h.

27{0};

◆ m_ampMin

float ZDCFitWrapper::m_ampMin {0}

privateinherited

Definition at line 26 of file ZDCFitWrapper.h.

26{0};

◆ m_expFermiFunc

std::shared_ptr<TF1> ZDCFitExpFermiLinearFixedTaus::m_expFermiFunc

private

Definition at line 793 of file ZDCFitWrapper.h.

◆ m_norm

float ZDCFitExpFermiLinearFixedTaus::m_norm

private

Definition at line 790 of file ZDCFitWrapper.h.

◆ m_t0Max

float ZDCFitWrapper::m_t0Max {0}

privateinherited

Definition at line 30 of file ZDCFitWrapper.h.

30{0};

◆ m_t0Min

float ZDCFitWrapper::m_t0Min {0}

privateinherited

Definition at line 29 of file ZDCFitWrapper.h.

29{0};

◆ m_tau1

float ZDCFitExpFermiLinearFixedTaus::m_tau1

private

Definition at line 787 of file ZDCFitWrapper.h.

◆ m_tau2

float ZDCFitExpFermiLinearFixedTaus::m_tau2

private

Definition at line 788 of file ZDCFitWrapper.h.

◆ m_tempTmax

float ZDCFitWrapper::m_tempTmax {0}

privateinherited

Definition at line 35 of file ZDCFitWrapper.h.

35{0};

◆ m_tempTmin

float ZDCFitWrapper::m_tempTmin {0}

privateinherited

Definition at line 34 of file ZDCFitWrapper.h.

34{0};

◆ m_timeCorr

float ZDCFitExpFermiLinearFixedTaus::m_timeCorr

private

Definition at line 791 of file ZDCFitWrapper.h.

◆ m_tmax

float ZDCFitWrapper::m_tmax {0}

privateinherited

Definition at line 24 of file ZDCFitWrapper.h.

24{0};

◆ m_tmin

float ZDCFitWrapper::m_tmin {0}

privateinherited

Definition at line 23 of file ZDCFitWrapper.h.

23{0};

◆ m_tminAdjust

float ZDCFitWrapper::m_tminAdjust {0}

privateinherited

Definition at line 33 of file ZDCFitWrapper.h.

33{0};

◆ m_wrapperTF1

std::shared_ptr<TF1> ZDCFitWrapper::m_wrapperTF1 {}

privateinherited

Definition at line 21 of file ZDCFitWrapper.h.

21{};

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

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ZDCFitExpFermiLinearFixedTaus()

◆ ~ZDCFitExpFermiLinearFixedTaus()

Member Function Documentation

◆ ConstrainFit()

◆ DoInitialize()

◆ GetAmpError()

◆ GetAmplitude()

◆ GetBkgdMaxFraction()

◆ GetMaxAmp()

◆ GetMinAmp()

◆ GetShapeParameter()

◆ GetT0Max()

◆ GetT0Min()

◆ GetTau1()

◆ GetTau2()

◆ GetTime()

◆ GetTMax()

◆ GetTMin()

◆ GetTMinAdjust()

◆ GetWrapperTF1() [1/2]

◆ GetWrapperTF1() [2/2]

◆ GetWrapperTF1RawPtr()

◆ Initialize() [1/2]

◆ Initialize() [2/2]

◆ operator()()

◆ SetAmpMinMax()

◆ SetT0FitLimits()

◆ SetT0Range()

◆ UnconstrainFit()

Member Data Documentation

◆ m_adjTLimitsEvent

◆ m_ampMax

◆ m_ampMin

◆ m_expFermiFunc

◆ m_norm

◆ m_t0Max

◆ m_t0Min

◆ m_tau1

◆ m_tau2

◆ m_tempTmax

◆ m_tempTmin

◆ m_timeCorr

◆ m_tmax

◆ m_tmin

◆ m_tminAdjust

◆ m_wrapperTF1