Public Member Functions | List of all members
demo::DemoSyst1 Class Reference
Inheritance diagram for demo::DemoSyst1:
ana::ISyst

Public Member Functions

 DemoSyst1 ()
 
void TruthShift (double sigma, caf::SRNeutrinoProxy *sr, double &weight) const override
 
virtual const std::stringShortName () const final
 The name printed out to the screen. More...
 
virtual const std::stringLatexName () const final
 The name used on plots (ROOT's TLatex syntax) More...
 
virtual void Shift (double sigma, caf::SRProxy *sr, double &weight) const
 Perform the systematic shift. More...
 
virtual bool IsGenieReweight () const
 GENIE reweights can only provide +/-1,2sigma. More...
 

Detailed Description

Definition at line 38 of file demoSysts.C.

Constructor & Destructor Documentation

demo::DemoSyst1::DemoSyst1 ( )
inline

Definition at line 41 of file demoSysts.C.

45  : ISyst("DemoSyst1", "Demo syst ##1")
46  {}
ISyst(const std::string &shortName, const std::string &latexName)
Definition: ISyst.cxx:10

Member Function Documentation

virtual bool ana::ISyst::IsGenieReweight ( ) const
inlinevirtualinherited

GENIE reweights can only provide +/-1,2sigma.

Reimplemented in ana::SummedSyst.

Definition at line 56 of file ISyst.h.

56 {return false;}
virtual const std::string& ana::ISyst::LatexName ( ) const
inlinefinalvirtualinherited
void ana::ISyst::Shift ( double  sigma,
caf::SRProxy sr,
double &  weight 
) const
virtualinherited

Perform the systematic shift.

Override this function if your systematic depends on non-SRNeutrino quantities. If it is SRNeutrino-only, implement the other function, and let this default forward to you when necessary.

Parameters
sigmaNumber of sigma to shift record by
srThe record to inspect and alter
weightScale this weight for reweighting systematics

Reimplemented in ana::MinosResSuppSyst, ana::MECDoubleGaussEnhSystDOWN, ana::MECDoubleGaussEnhSystUP, ana::MECDoubleGaussEnhSyst, ana::MinosResSuppSyst, ana::MECGaussEnhSyst, ana::MECGaussEnhSyst, jw::MECInitStateNPFracShift, jw::CompNormSyst, ana::CompNormSyst, ana::CompNormSyst, ana::BolombMuESyst2019, ana::DISHighWScaleSyst, ana::ContainmentSyst, ana::PileupMuESyst2019, ana::PileupMuESyst2020, ana::NumuRelEnergyScaleSyst, ana::RockMuonNormSyst, ana::NumuEnergyScaleSyst, ana::RemIDScaleSyst, ana::UnCorrMuCatMuESyst2019, ana::LEMScaleSyst, ana::NumuRelNormSyst, ana::UnCorrMuCatMuESyst2020, demo::DemoSyst2, ana::DirectRelHadEScaleSyst2017, ana::BeamIntensitySyst, ana::NumuNormSyst, ana::Nus18BaseSyst, ana::UnCorrNDMuEScaleSyst2019, ana::KaonScaleSyst, ana::FDMuEnergyScaleSyst, ana::UnCorrNDMuEScaleSyst2020, ana::NumuTauContaminationSyst, ana::MyWrongSignScale, ana::MECDoubleGaussEnhSyst, ana::NueAcceptSystSignalKin2020RHC, ana::DirectHadEScaleSyst2017, ana::NumuCCScaleSyst, ana::Nus18FlatSyst, ana::FDHadEnergyScaleSyst, ana::NumuNCScaleSyst, ana::NueAcceptSystSignalKin2018RHC, ana::BeamNueScaleSyst, ana::NueAcceptSystBkg2018RHC, ana::UnCorrFDMuEScaleSyst2019, ana::UnCorrFDMuEScaleSyst2020, ana::MuEnergyScaleSyst, ana::WrongSignScale100, ana::NCScaleSyst, ana::covmx::NormSyst, ana::NusFlatSyst, ana::RelMuEScaleSyst2017, ana::MECDoubleGaussEnhSystNux, ana::Nus17FlatSyst, ana::Numutest, ana::NumuSummedSmallGENIESyst, ana::Nus18SystFromHist, ana::NusAna2020TauSyst, ana::NueAcceptSystSignalKin2020FHC, ana::WrongSignEnergyBin, ana::RelNormSyst, ana::MichelTaggingSyst2018, ana::Nuetest, ana::GenericSystComponentScale< T >, ana::CorrMuEScaleSyst2019, ana::CorrMuEScaleSyst2020, ana::NumuGEANTScaleSyst, ana::GenericSystComponentScale< T >, ana::HadEnergyScaleSyst, ana::NueAcceptSystSignalKin2018FHC, ana::NormSyst, ana::NusAna2020KaonSyst, ana::WrongSignEnergyBinRHC, ana::NuWROSyst, ana::GenericSystComponentScale< T >, ana::LeptonAngleSyst, ana::NueExtrapSystSignalKin2017, ana::SystFromWeight, ana::MuEScaleSyst2017, ana::NCtest, ana::NusSystFromHist, ana::NueSyst, ana::Nus17SystFromHist, ana::SummedSyst, ana::DummyNue2017Syst, ana::DummyNumu2017Syst, ana::GeniePCASyst, ana::NueAcceptSystBkg2018FHC, ana::NumuGEANTNormSyst, ana::DummyAnaSyst, ana::NeutronVisEScaleSyst2018, ana::NueExtrapSystBkg2017, ana::DummyRockScaleSyst, ana::MichelTaggingSyst2020, ana::CosmicBkgScaleSyst, ana::WrongSignScale, ana::WrongSignContamination, ana::NCSyst, and ana::NumuSyst.

Definition at line 26 of file ISyst.cxx.

References caf::Proxy< caf::StandardRecord >::mc, caf::Proxy< caf::SRTruthBranch >::nnu, caf::Proxy< caf::SRTruthBranch >::nu, and ana::ISyst::TruthShift().

Referenced by ana::ISyst::LatexName(), and ana::GenericSystComponentScale< T >::Shift().

27  {
28  // Override this function if your systematic depends on non-SRNeutrino
29  // quantities. If it is SRNeutrino-only, implement the other function,
30  // and let this default forward to you when necessary.
31  if(sr->mc.nnu > 0) TruthShift(sigma, &sr->mc.nu[0], weight);
32  }
const Var weight
caf::Proxy< std::vector< caf::SRNeutrino > > nu
Definition: SRProxy.h:618
caf::Proxy< short int > nnu
Definition: SRProxy.h:617
virtual void TruthShift(double sigma, caf::SRNeutrinoProxy *nu, double &weight) const
Definition: ISyst.h:46
double sigma(TH1F *hist, double percentile)
caf::Proxy< caf::SRTruthBranch > mc
Definition: SRProxy.h:2138
virtual const std::string& ana::ISyst::ShortName ( ) const
inlinefinalvirtualinherited
void demo::DemoSyst1::TruthShift ( double  sigma,
caf::SRNeutrinoProxy nu,
double &  weight 
) const
inlineoverridevirtual

For systematics that deal only with the neutrino truth and not any reconstruction/PID details. Systematics defined this way will work on nuTree-derived spectra too (e.g. denominators of efficiencies).

Reimplemented from ana::ISyst.

Definition at line 51 of file demoSysts.C.

References caf::Proxy< caf::SRNeutrino >::E, sigma(), and util::sqr().

52  {
53 
54  // first calculate the function.
55  double additionalWgt = 0.1;
56  double Enu = sr->E;
57  if (Enu > 5)
58  additionalWgt += 0.4 * (1 - exp(-util::sqr(Enu-5)/10.));
59 
60  // we just constructed the +1sigma function.
61  // now compute the actual shift requested.
62  additionalWgt *= sigma;
63 
64  // obviously the nominal (0 sigma) means leave the event alone,
65  // so that's weight = 1.
66  // increasing by 10% is weight = 1.1, etc.
67  // so we add the change to 1 to get the weight to use.
68  additionalWgt += 1;
69 
70  // we don't want events with negative weights...
71  if (additionalWgt < 0)
72  additionalWgt = 0;
73 
74  // remember to multiply it into the weight that was already there...
75  weight *= additionalWgt;
76  }
const Var weight
T sqr(T x)
More efficient square function than pow(x,2)
Definition: MathUtil.h:23
caf::StandardRecord * sr
double sigma(TH1F *hist, double percentile)

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