dqmTnP::GaussianPlusLinearFitter Class Reference

#include <GenericTnPFitter.h>

Inheritance diagram for dqmTnP::GaussianPlusLinearFitter:

Public Member Functions
void	fit (TH1 *pass, TH1 *all)
	GaussianPlusLinearFitter (bool verbose=false)
	~GaussianPlusLinearFitter ()
Public Member Functions inherited from dqmTnP::AbstractFitter
	AbstractFitter (bool verbose_=false)
TString	calculateEfficiency (TH3 *pass, TH3 *all, int massDimension, TProfile2D *&eff, TProfile2D *&effChi2, TString plotName="")
TString	calculateEfficiency (TH2 *pass, TH2 *all, int massDimension, TProfile *&eff, TProfile *&effChi2, TString plotName="")
double	getChi2 ()
double	getEfficiency ()
double	getEfficiencyError ()
void	savePlot (const TString &name)
void	setup (double expectedMean_, double massLow, double massHigh, double expectedSigma_)
virtual	~AbstractFitter ()

Protected Attributes
RooGaussian	gaussian
RooChebychev	linearFail
RooChebychev	linearPass
RooAddPdf	pdfFail
RooAddPdf	pdfPass
RooRealVar	slopeFail
RooRealVar	slopePass
Protected Attributes inherited from dqmTnP::AbstractFitter
RooCategory	category
double	chi2
RooDataHist *	data
RooRealVar	efficiency
double	expectedMean
double	expectedSigma
RooRealVar	mass
RooRealVar	mean
RooRealVar	nBackgroundFail
RooRealVar	nBackgroundPass
RooRealVar	nSignalAll
RooFormulaVar	nSignalFail
RooFormulaVar	nSignalPass
RooRealVar	sigma
RooSimultaneous	simPdf
bool	verbose

Detailed Description

Definition at line 240 of file GenericTnPFitter.h.

Constructor & Destructor Documentation

dqmTnP::GaussianPlusLinearFitter::GaussianPlusLinearFitter ( bool  verbose = false )

inline

Definition at line 250 of file GenericTnPFitter.h.

References dqmTnP::AbstractFitter::simPdf.

                                                :
    AbstractFitter(verbose),
    gaussian("gaussian","gaussian",mass,mean,sigma),
    slopeFail("slopeFail","slopeFail",0.,-1.,1.),
    linearFail("linearFail","linearFail",mass,slopeFail),
    slopePass("slopePass","slopePass",0.,-1.,1.),
    linearPass("linearPass","linearPass",mass,slopePass),
    pdfFail("pdfFail","pdfFail", RooArgList(gaussian,linearFail), RooArgList(nSignalFail,nBackgroundFail)),
    pdfPass("pdfPass","pdfPass", RooArgList(gaussian,linearPass), RooArgList(nSignalPass,nBackgroundPass))
  {
    simPdf.addPdf(pdfFail,"fail");
    simPdf.addPdf(pdfPass,"pass");
  };

dqmTnP::GaussianPlusLinearFitter::~GaussianPlusLinearFitter ( )

inline

Definition at line 263 of file GenericTnPFitter.h.

{};

Member Function Documentation

void dqmTnP::GaussianPlusLinearFitter::fit ( TH1 *  pass, TH1 *  all  )

inlinevirtual

Implements dqmTnP::AbstractFitter.

Definition at line 264 of file GenericTnPFitter.h.

References cond::ecalcond::all, dqmTnP::AbstractFitter::category, dqmTnP::AbstractFitter::chi2, dqmTnP::AbstractFitter::data, dqmTnP::AbstractFitter::efficiency, dqmTnP::AbstractFitter::expectedMean, dqmTnP::AbstractFitter::expectedSigma, cmsPerfPublish::fail(), dqmTnP::AbstractFitter::mass, dqmTnP::AbstractFitter::mean, dqmTnP::AbstractFitter::nBackgroundFail, dqmTnP::AbstractFitter::nBackgroundPass, dqmTnP::AbstractFitter::nSignalAll, dqmTnP::AbstractFitter::sigma, dqmTnP::AbstractFitter::simPdf, and EcalTangentSkim_cfg::Verbose.

                               {
    using namespace RooFit;
    all->Add(pass,-1);
    TH1* &fail = all;
    if(!data) delete data;
    data = new RooDataHist("data", "data", mass, Index(category), Import("fail",*fail), Import("pass",*pass) );
    if(pass->Integral()+fail->Integral() < 5){
      efficiency.setVal(0.5);
      efficiency.setError(0.5);
      chi2 = 0;
      return;
    }
    mean.setVal(expectedMean);
    sigma.setVal(expectedSigma);
    efficiency.setVal(pass->Integral()/(pass->Integral()+fail->Integral()));
    nSignalAll.setVal(0.5*(fail->Integral()+pass->Integral()));
    nBackgroundFail.setVal(0.5*fail->Integral());
    nBackgroundPass.setVal(0.5*pass->Integral());
    slopeFail.setVal(0.);
    slopePass.setVal(0.);
    if(verbose){
      simPdf.fitTo( *data );
    }else{
      simPdf.fitTo( *data, Verbose(kFALSE), PrintLevel(-1), Warnings(kFALSE), PrintEvalErrors(-1) );
    }
    RooDataHist dataFail("fail", "fail", mass, fail );
    RooDataHist dataPass("pass", "pass", mass, pass );
    chi2 = ( RooChi2Var("chi2Fail","chi2Fail",pdfFail,dataFail,DataError(RooAbsData::Poisson)).getVal()
      +RooChi2Var("chi2Pass","chi2Pass",pdfPass,dataPass,DataError(RooAbsData::Poisson)).getVal() )/(2*pass->GetNbinsX()-8);
    if(chi2>3){
      efficiency.setVal(0.5);
      efficiency.setError(0.5);
    }
  }

Member Data Documentation

RooGaussian dqmTnP::GaussianPlusLinearFitter::gaussian

protected

Definition at line 242 of file GenericTnPFitter.h.

RooChebychev dqmTnP::GaussianPlusLinearFitter::linearFail

protected

Definition at line 244 of file GenericTnPFitter.h.

RooChebychev dqmTnP::GaussianPlusLinearFitter::linearPass

protected

Definition at line 246 of file GenericTnPFitter.h.

RooAddPdf dqmTnP::GaussianPlusLinearFitter::pdfFail

protected

Definition at line 247 of file GenericTnPFitter.h.

RooAddPdf dqmTnP::GaussianPlusLinearFitter::pdfPass

protected

Definition at line 248 of file GenericTnPFitter.h.

RooRealVar dqmTnP::GaussianPlusLinearFitter::slopeFail

protected

Definition at line 243 of file GenericTnPFitter.h.

RooRealVar dqmTnP::GaussianPlusLinearFitter::slopePass

protected

Definition at line 245 of file GenericTnPFitter.h.