ana::SystComponentScale Class Reference

Uncertainty in the scale of a single component of the spectrum. More...

#include <SystComponentScale.h>

Inheritance diagram for ana::SystComponentScale:

Public Types
enum	ESystType { kLinear, kExponential }

Public Member Functions
	SystComponentScale (const std::string &shortName, const std::string &latexName, const Cut &cut, double oneSigma, ESystType type=kExponential)
	~SystComponentScale ()
double	OneSigmaScale () const
	Scaling this component between 1/(1+x) and (1+x) is the 1-sigma range. More...
const Cut &	GetCut () const
void	Shift (double sigma, caf::SRSliceProxy *slc, double &weight) const override
	Perform the systematic shift. More...
virtual void	SaveTo (TDirectory *dir) const
Public Member Functions inherited from ana::ISyst
	ISyst (const std::string &shortName, const std::string &latexName, bool applyPenalty=true, double min=-3, double max=+3)
	ISyst (const ISyst &)=delete
	ISyst (ISyst &&rhs)=delete
virtual	~ISyst ()
void	operator= (const ISyst &)=delete
void	operator= (ISyst &&)=delete
virtual std::string	ShortName () const final
	The name printed out to the screen. More...
virtual std::string	LatexName () const final
	The name used on plots (ROOT's TLatex syntax) More...
virtual double	Penalty (double x) const
virtual bool	ApplyPenalty () const
	Should a penalty be applied for this shift? More...
virtual double	Min () const
	Return the min/max value for this syst. More...
virtual double	Max () const
virtual int	PredInterpMaxNSigma () const

Static Public Member Functions
static std::unique_ptr < SystComponentScale >	LoadFrom (TDirectory *dir)

Protected Attributes
Cut	fCut
double	fOneSigma
ESystType	fType

Detailed Description

Uncertainty in the scale of a single component of the spectrum.

Definition at line 9 of file SystComponentScale.h.

Member Enumeration Documentation

enum ana::SystComponentScale::ESystType

Enumerator
kLinear
kExponential

Definition at line 12 of file SystComponentScale.h.

{kLinear, kExponential};

Constructor & Destructor Documentation

ana::SystComponentScale::SystComponentScale ( const std::string &  shortName, const std::string &  latexName, const Cut &  cut, double  oneSigma, ESystType  type = kExponential  )

inline

Parameters

cut	Select the component to be scaled

Definition at line 15 of file SystComponentScale.h.

      : ISyst(shortName, latexName),
        fCut(cut), fOneSigma(oneSigma), fType(type)
    {
    }

ana::SystComponentScale::~SystComponentScale

(

)

Definition at line 12 of file SystComponentScale.cxx.

  {
  }

Member Function Documentation

const Cut& ana::SystComponentScale::GetCut ( ) const

inline

Definition at line 30 of file SystComponentScale.h.

{return fCut;}

std::unique_ptr< SystComponentScale > ana::SystComponentScale::LoadFrom ( TDirectory *  dir )

static

Definition at line 33 of file SystComponentScale.cxx.

  {
    TObjString* ptag = (TObjString*)dir->Get("type");
    assert(ptag);

    const TString tag = ptag->GetString();

    std::cerr << "Unknown SystComponentScale type '" << tag << "'" << std::endl;
    abort();
  }

double ana::SystComponentScale::OneSigmaScale ( ) const

inline

Scaling this component between 1/(1+x) and (1+x) is the 1-sigma range.

Definition at line 28 of file SystComponentScale.h.

{return fOneSigma;}

virtual void ana::SystComponentScale::SaveTo ( TDirectory *  dir ) const

inlinevirtual

Definition at line 39 of file SystComponentScale.h.

{assert(0 && "unimplemented");}

void ana::SystComponentScale::Shift ( double  sigma, caf::SRSliceProxy *  sr, double &  weight  ) const

overridevirtual

Perform the systematic shift.

Parameters

sigma	Number of sigma to shift record by
sr	The record to inspect and alter
weight	Scale this weight for reweighting systematics

Implements ana::ISyst.

Definition at line 17 of file SystComponentScale.cxx.

  {
    if(!fCut(slc)) return;

    if(fType == kExponential){
      weight *= pow(1+fOneSigma, sigma);
    }
    else{
      weight *= 1+sigma*fOneSigma;
      weight = std::max(0., weight);
    }
  }

Member Data Documentation

Cut ana::SystComponentScale::fCut

protected

Definition at line 42 of file SystComponentScale.h.

double ana::SystComponentScale::fOneSigma

protected

Definition at line 43 of file SystComponentScale.h.

ESystType ana::SystComponentScale::fType

protected

Definition at line 44 of file SystComponentScale.h.

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

• SystComponentScale.h
• SystComponentScale.cxx