GetHistsFD.C

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// Fills spectra for systematic error band
#ifdef __CINT__
void GetHistsFD()
{
  std::cout << "Sorry, you must run in compiled mode" << std::endl;
}
#else

#include "CAFAna/Core/Binning.h"
#include "CAFAna/Core/Loaders.h"
#include "CAFAna/Core/Spectrum.h"
#include "CAFAna/Core/SpectrumLoader.h"
#include "CAFAna/Core/Var.h"
#include "CAFAna/Cuts/Cuts.h"
#include "CAFAna/Cuts/NumuCuts.h"
#include "CAFAna/Cuts/SpillCuts.h"
#include "CAFAna/Vars/GenieWeights.h"
#include "CAFAna/Vars/NumuVars.h"
#include "CAFAna/Vars/PPFXWeights.h"

#include "TCanvas.h"
#include "TFile.h"
#include "TH1.h"
#include "TH2.h"
#include "TStyle.h"

using namespace ana;

void GetHistsFD()
{

  std::string fd_nonswap = "/pnfs/nova/persistent/production/concat/R16-03-03-prod2reco.f/epoch*/prod_decaf_R16-03-03-prod2reco.f_fd_genie_nonswap_fhc_nova_v08_epoch*_numu_contain_v1_prod2-snapshot.root";
  SpectrumLoader loader(fd_nonswap);
  loader.SetSpillCut(kStandardSpillCuts);

  struct Plot2D
  {
    std::string name;
    std::string labelx;
    Binning binsx;
    Var varx;
    std::string labely;
    Binning binsy;
    Var vary;
    Cut cut;
  };

  const Cut kTrueEbelow5({"mc.nnu","mc.nu.E"}, 
                  [](const caf::StandardRecord* sr)
                  {
                    if (sr->mc.nnu < 1) return false;
                    else return (sr->mc.nu[0].E <= 5.0);
                  });

  const Cut kHasTrueMuon({"energy.numusimp.mc.truegoodmuon","energy.numusimp.mc.truemuonE"}, 
                  [](const caf::StandardRecord* sr)
                  {
                    if (sr->energy.numusimp.mc.truegoodmuon < 1) return false;
                    else return (sr->energy.numusimp.mc.truemuonE > 0);
                  });

  const Cut kCut = kTrueEbelow5 && kIsNumuCC && kHasTrueMuon && kNumuFD;

  //// ------ Now the binnings and variables ------ /////

  const Binning kMuonEnergyBinning = Binning::Simple(150,0,5);
  const Binning kHadEnergyBinning = Binning::Simple(150,0,5);
  const Binning kRToverTBinning = Binning::Simple(150, -1.0, 1.0);
  const Binning kTrackLengthBinning = Binning::Simple(150, 0, 15);

  std::vector<double> hadronBins;
  double hadronAxis = 0.0;
  for(int i = 0; i < 116; ++i){
    hadronBins.push_back(hadronAxis);
    if (hadronAxis < 1.0){hadronAxis = hadronAxis + 0.01;}
    else if (hadronAxis < 1.5){hadronAxis = hadronAxis + 0.05;}
    else {hadronAxis = hadronAxis + 0.1;}
  }

  const Binning kHadEBinning = Binning::Custom(hadronBins);

  const Var kTrueHadE = kTrueE - kTrueMuonE;

  const Var kHadE1      = SIMPLEVAR(energy.numusimp.hadtrkE);
  const Var kHadE2      = SIMPLEVAR(energy.numusimp.hadcalE);
  const Var kHadCalE    = kHadE1 + kHadE2;

  const int kNumPlots2D = 2;

  Plot2D plots2D[kNumPlots2D] = {

    {"MuonE_hist","Reco muon track length (m)", kTrackLengthBinning, kTrkLength, "True muon energy (GeV)" , kMuonEnergyBinning, kTrueMuonE, kCut},

    {"HadE_hist","Visible hadronic energy (GeV)", kHadEBinning, kHadCalE, "True hadronic energy (GeV)" , kHadEnergyBinning, kTrueHadE, kCut}
  };

  Spectrum* sSpect2D[kNumPlots2D];

  for(int i = 0; i < kNumPlots2D; i++)
  {
    Plot2D p = plots2D[i];
    // sSpect2D[i] = new Spectrum(p.labelx, p.labely, loader, p.binsx, p.varx, p.binsy, p.vary, p.cut, kNoShift, kTuftsWeightCC * kPPFXFluxCVWgt ); // for miniproduction
    sSpect2D[i] = new Spectrum(p.labelx, p.labely, loader, p.binsx, p.varx, p.binsy, p.vary, p.cut, kNoShift, kTuftsWeightCC );
  } // loop over 1D plots

  loader.Go();

  TFile f("2DPlotsForFittingFD.root","RECREATE");

  for(int i = 0; i < kNumPlots2D; i++)
  {
    Plot2D p = plots2D[i];
    TH2* h = sSpect2D[i]->ToTH2(sSpect2D[i]->POT());
    h->SetName(p.name.c_str());
    h->Write();
  } // loop over 1D plots

}

#endif