dqmTnP::GaussianPlusLinearFitter Class Reference

#include <GenericTnPFitter.h>

Inheritance diagram for dqmTnP::GaussianPlusLinearFitter:

Public Member Functions
void	fit (TH1 *pass, TH1 *all) override
	GaussianPlusLinearFitter (bool verbose=false)
	~GaussianPlusLinearFitter () override=default
Public Member Functions inherited from dqmTnP::AbstractFitter
	AbstractFitter (bool verbose_=false)
TString	calculateEfficiency (TH3 *pass, TH3 *all, int massDimension, TProfile2D *&eff, TProfile2D *&effChi2, const TString &plotName="")
TString	calculateEfficiency (TH2 *pass, TH2 *all, int massDimension, TProfile *&eff, TProfile *&effChi2, const 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 ()=default

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 269 of file GenericTnPFitter.h.

Constructor & Destructor Documentation

GaussianPlusLinearFitter()

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

inline

Definition at line 280 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");
    };

~GaussianPlusLinearFitter()

dqmTnP::GaussianPlusLinearFitter::~GaussianPlusLinearFitter ( )

overridedefault

Member Function Documentation

fit()

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

inlineoverridevirtual

Implements dqmTnP::AbstractFitter.

Definition at line 294 of file GenericTnPFitter.h.

References python.cmstools::all(), dqmTnP::AbstractFitter::category, dqmTnP::AbstractFitter::chi2, dqmTnP::AbstractFitter::data, dqmTnP::AbstractFitter::efficiency, dqmTnP::AbstractFitter::expectedMean, dqmTnP::AbstractFitter::expectedSigma, dqmTnP::AbstractFitter::mass, dqmTnP::AbstractFitter::mean, dqmTnP::AbstractFitter::nBackgroundFail, dqmTnP::AbstractFitter::nBackgroundPass, dqmTnP::AbstractFitter::nSignalAll, dqmTnP::AbstractFitter::sigma, dqmTnP::AbstractFitter::simPdf, EcalTangentSkim_cfg::Verbose, and dqmTnP::AbstractFitter::verbose.

Referenced by trackingPlots.Iteration::modules().

                                           {
      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);
      using AbsRealPtr = std::unique_ptr<RooAbsReal>;
      const double chi2Fail = AbsRealPtr(pdfFail.createChi2(dataFail, DataError(RooAbsData::Poisson)))->getVal();
      const double chi2Pass = AbsRealPtr(pdfPass.createChi2(dataPass, DataError(RooAbsData::Poisson)))->getVal();
      chi2 = (chi2Fail + chi2Pass) / (2 * pass->GetNbinsX() - 8);
      if (chi2 > 3) {
        efficiency.setVal(0.5);
        efficiency.setError(0.5);
      }
    }

Member Data Documentation

gaussian

RooGaussian dqmTnP::GaussianPlusLinearFitter::gaussian

protected

Definition at line 271 of file GenericTnPFitter.h.

linearFail

RooChebychev dqmTnP::GaussianPlusLinearFitter::linearFail

protected

Definition at line 273 of file GenericTnPFitter.h.

linearPass

RooChebychev dqmTnP::GaussianPlusLinearFitter::linearPass

protected

Definition at line 275 of file GenericTnPFitter.h.

pdfFail

RooAddPdf dqmTnP::GaussianPlusLinearFitter::pdfFail

protected

Definition at line 276 of file GenericTnPFitter.h.

pdfPass

RooAddPdf dqmTnP::GaussianPlusLinearFitter::pdfPass

protected

Definition at line 277 of file GenericTnPFitter.h.

slopeFail

RooRealVar dqmTnP::GaussianPlusLinearFitter::slopeFail

protected

Definition at line 272 of file GenericTnPFitter.h.

slopePass

RooRealVar dqmTnP::GaussianPlusLinearFitter::slopePass

protected

Definition at line 274 of file GenericTnPFitter.h.