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eval.cc
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eval.cc
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/* Maker of TTree's friend with outputs from semi-parametric MVAs.
*/
#include <vector>
#include <string>
#include <TMath.h>
#include <TFile.h>
#include <TTree.h>
#include <TSystem.h>
#include <TString.h>
#include <RooRealVar.h>
#include <RooWorkspace.h>
// prints a message and exits gracefully
#define FATAL(msg) do { fprintf(stderr, "FATAL: %s\n", msg); gSystem->Exit(1); } while (0)
void eval(const char* infile, const char* outfile, std::vector<std::string> fnames)
{
/* Main function.
*
* fnames = array with names of input ntuples.
*/
// open file and get TTree with the inputs
TFile* fi = TFile::Open(infile);
if (!fi || fi->IsZombie())
FATAL("TFile::Open() failed");
TTree* intree = dynamic_cast<TTree*>(fi->Get("ntuplizer/PFClusterTree"));
if (!intree) FATAL("TFile::Get() failed");
// variables to be associated with the input tree branches
Int_t nVtx;
Int_t pfSize5x5_ZS;
Int_t pfIEtaIX, pfIPhiIY;
float pfE, pfPt, pfEta; //, pfPhi;
// float pfE1x3, pfE2x2, pfE2x5Max, pfE3x3, pfE5x5;
float ps1E, ps2E;
// associate tree branches with variables
intree->SetBranchAddress("pfE", &pfE);
intree->SetBranchAddress("pfPt", &pfPt);
intree->SetBranchAddress("pfEta", &pfEta);
// intree->SetBranchAddress("pfPhi", &pfPhi);
intree->SetBranchAddress("pfIEtaIX", &pfIEtaIX);
intree->SetBranchAddress("pfIPhiIY", &pfIPhiIY);
intree->SetBranchAddress("pfSize5x5_ZS", &pfSize5x5_ZS);
// intree->SetBranchAddress("pfE1x3", &pfE1x3);
// intree->SetBranchAddress("pfE2x2", &pfE2x2);
// intree->SetBranchAddress("pfE2x5Max", &pfE2x5Max);
// intree->SetBranchAddress("pfE3x3", &pfE3x3);
// intree->SetBranchAddress("pfE5x5", &pfE5x5);
intree->SetBranchAddress("nVtx", &nVtx);
intree->SetBranchAddress("ps1E", &ps1E);
intree->SetBranchAddress("ps2E", &ps2E);
// number of ntuples
size_t nent = fnames.size();
if (nent < 1 || nent > 99) FATAL("fnames.size() not in range 1-99");
// prepare output tree
TFile* fo = TFile::Open(outfile, "RECREATE");
if (!fo || fo->IsZombie())
FATAL("TFile::Open() failed");
TDirectory* dir = fo->mkdir("ntuplizer");
if (!dir) FATAL("TFile::mkdir() failed");
if (!dir->cd()) FATAL("TDirectory::cd() failed");
TTree* outtree = new TTree("PFClusterTree", "Outputs from semi-parametric MVAs");
// array of variables to be associated with the output tree branches
float mean[99], sigma[99], alphaL[99], alphaR[99], powerR[99];
// associate variables with the output tree branches
for (size_t i = 0; i < nent; i++) {
outtree->Branch(Form("mva_mean_%s", fnames[i].c_str()), &mean[i]);
outtree->Branch(Form("mva_sigma_%s", fnames[i].c_str()), &sigma[i]);
outtree->Branch(Form("mva_alphaL_%s", fnames[i].c_str()), &alphaL[i]);
outtree->Branch(Form("mva_alphaR_%s", fnames[i].c_str()), &alphaR[i]);
outtree->Branch(Form("mva_powerR_%s", fnames[i].c_str()), &powerR[i]);
}
// semi-parametric MVAs' inputs and outputs
RooRealVar* invar[99][2][9][33]; // [mva number][EB or EE][pfSize][varnum]
RooAbsReal* mvaMean[99][2][9];
RooAbsReal* mvaSigma[99][2][9];
RooAbsReal* mvaAlphaL[99][2][9];
RooAbsReal* mvaAlphaR[99][2][9];
RooAbsReal* mvaPowerR[99][2][9];
// get trainings
for (size_t i = 0; i < nent; i++) {
TFile f(Form("output/training_results_%s.root", fnames[i].c_str()));
if (f.IsZombie()) FATAL("TFile::Open() failed");
for (int iBE = 0; iBE < 2; iBE++) // barrel vs endcaps
for (int iS = 0; iS < 5; iS++) { // pfSize = 1 vs 2 vs 3 and bigger (pfPt-sliced)
const char* det = (iBE == 0 ? "EB" : "EE");
int pfSize = (iS < 2 ? iS + 1 : 3);
TString wsname = TString::Format("ws_mva_%s_pfSize%i", det, pfSize);
// pfPt slices
double ptMin = -1, ptMax = -1;
if (iS == 2) {
ptMin = 0;
ptMax = 5;
} else if (iS == 3) {
ptMin = 4;
ptMax = 20;
} else if (iS == 4) {
ptMin = 16;
ptMax = -1;
}
if (ptMin > -0.5)
wsname += TString::Format("_ptMin%.1f", ptMin);
if (ptMax > -0.5)
wsname += TString::Format("_ptMax%.1f", ptMax);
RooWorkspace* ws = dynamic_cast<RooWorkspace*>(f.Get(wsname));
if (!ws) FATAL("TFile::Get() failed");
invar[i][iBE][iS][0] = ws->var("var1"); // pfE
invar[i][iBE][iS][1] = ws->var("var2"); // pfIEtaIX
invar[i][iBE][iS][2] = ws->var("var3"); // pfIPhiIY
// if (iS > 0)
// invar[i][iBE][iS][3] = ws->var("var4"); // pfE1x3/pfE
//
// if (iS > 1) {
// invar[i][iBE][iS][4] = ws->var("var5"); // pfE2x2/pfE
// invar[i][iBE][iS][5] = ws->var("var6"); // pfE2x5Max/pfE
// invar[i][iBE][iS][6] = ws->var("var7"); // pfE3x3/pfE
// invar[i][iBE][iS][7] = ws->var("var8"); // pfE5x5/pfE
// }
invar[i][iBE][iS][8] = ws->var("nVtx"); // nVtx
if (iBE == 1) {
invar[i][iBE][iS][9] = ws->var("varEE1"); // ps1E/pfE
invar[i][iBE][iS][10] = ws->var("varEE2"); // ps2E/pfE
}
mvaMean[i][iBE][iS] = ws->function("limMean");
mvaSigma[i][iBE][iS] = ws->function("limSigma");
mvaAlphaL[i][iBE][iS] = ws->function("limAlphaL");
mvaAlphaR[i][iBE][iS] = ws->function("limAlphaR");
if (iS > 1)
mvaPowerR[i][iBE][iS] = ws->function("limPowerR");
} // iS loop
} // training number
// loop over events
for (Long64_t ev = 0; ev < intree->GetEntriesFast(); ev++) {
if (intree->GetEntry(ev) <= 0)
FATAL("TTree::GetEntry() failed");
// 0=ECAL barrel vs 1=ECAL endcaps
int iBE = (fabs(pfEta) < 1.479) ? 0 : 1;
if (pfSize5x5_ZS <= 0) FATAL("pfSize5x5_ZS <= 0");
// pfSize category
int iS = (pfSize5x5_ZS > 2 ? 2 : pfSize5x5_ZS - 1);
// pfPt slice category
if (iS == 2) {
if (pfPt >= 4.5 && pfPt < 18) iS = 3;
else if (pfPt >= 18) iS = 4;
}
for (size_t i = 0; i < nent; i++) {
*invar[i][iBE][iS][0] = pfE;
*invar[i][iBE][iS][1] = pfIEtaIX;
*invar[i][iBE][iS][2] = pfIPhiIY;
// if (iS > 0)
// *invar[i][iBE][iS][3] = pfE1x3/pfE;
//
// if (iS > 1) {
// *invar[i][iBE][iS][4] = pfE2x2/pfE;
// *invar[i][iBE][iS][5] = pfE2x5Max/pfE;
// *invar[i][iBE][iS][6] = pfE3x3/pfE;
// *invar[i][iBE][iS][7] = pfE5x5/pfE;
// }
// NULL if not available
if (invar[i][iBE][iS][8])
*invar[i][iBE][iS][8] = nVtx;
if (iBE == 1) {
*invar[i][iBE][iS][9] = ps1E/pfE;
*invar[i][iBE][iS][10] = ps2E/pfE;
}
mean[i] = TMath::Exp(mvaMean[i][iBE][iS]->getVal());
sigma[i] = mvaSigma[i][iBE][iS]->getVal();
alphaL[i] = mvaAlphaL[i][iBE][iS]->getVal();
alphaR[i] = mvaAlphaR[i][iBE][iS]->getVal();
powerR[i] = 0;
if (iS > 1)
powerR[i] = mvaPowerR[i][iBE][iS]->getVal();
}
outtree->Fill();
} // event loop
// flush caches
if (!dir->cd()) FATAL("TDirectory::cd() failed");
outtree->Write("", TObject::kOverwrite);
// cleanup
delete intree;
delete outtree;
delete fi;
delete fo;
}