ATLAS Offline Software
Macros | Functions
TruthDerivationTester.cxx File Reference
#include "POOLRootAccess/TEvent.h"
#include "GaudiKernel/SmartIF.h"
#include <boost/program_options.hpp>
#include "PATInterfaces/MessageCheck.h"
#include "AsgTools/AnaToolHandle.h"
#include "PMGAnalysisInterfaces/IPMGTruthWeightTool.h"
#include "xAODTruth/TruthEventContainer.h"
#include "xAODTruth/TruthParticleContainer.h"
#include "xAODEventInfo/EventInfo.h"
#include "xAODMissingET/MissingETContainer.h"
#include "xAODJet/JetContainer.h"
#include "xAODTruth/TruthVertexContainer.h"
#include "xAODTruth/TruthMetaDataContainer.h"
#include "AthContainers/ConstAccessor.h"
#include <TFile.h>
#include <TChain.h>
#include <TH1D.h>
#include <iostream>
#include <cmath>
#include <format>

Go to the source code of this file.

Macros

#define CHECK_RETRIEVE(container, name)
 

Functions

int countChildren (const xAOD::TruthParticle *p)
 
int countParents (const xAOD::TruthParticle *p)
 
int main (int argc, char **argv)
 

Macro Definition Documentation

◆ CHECK_RETRIEVE

#define CHECK_RETRIEVE (   container,
  name 
)
Value:
{ \
if (!event.retrieve( container , name ).isSuccess()){ \
Error( APP_NAME , "%s", std::format ("Could not load event {} from the file!" , name ).c_str()); \
throw std::runtime_error("Container retrieval failed"); \
} \
}

Definition at line 58 of file TruthDerivationTester.cxx.

Function Documentation

◆ countChildren()

int countChildren ( const xAOD::TruthParticle *  p)

Definition at line 65 of file TruthDerivationTester.cxx.

65  {
66  if (!p) return 0;
67  int children = 0;
68  for (size_t n=0;n<p->nChildren();++n){
69  children += countChildren( p->child(n) );
70  }
71  return children;
72 }

◆ countParents()

int countParents ( const xAOD::TruthParticle *  p)

Definition at line 75 of file TruthDerivationTester.cxx.

75  {
76  if (!p) return 0;
77  int parents = 0;
78  for (size_t n=0;n<p->nParents();++n){
79  parents += countParents( p->parent(n) );
80  }
81  return parents;
82 }

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 85 of file TruthDerivationTester.cxx.

85  {
86 
87  // The application's name:
88  const char* APP_NAME = argv[ 0 ];
89 
90  // Make sure things know we are not in StatusCode land
91  using namespace asg::msgUserCode;
92  ANA_CHECK_SET_TYPE (int);
93 
94  // Setup for reading -- if this fails, we have major problems
95 #ifdef XAOD_STANDALONE
96  if ( ! xAOD::Init().isSuccess() ) {
97  throw std::runtime_error("Cannot initialise xAOD access !");
98  }
99  ANA_MSG_INFO("Using xAOD access");
100 #else
101  SmartIF<IAppMgrUI> app = POOL::Init();
102  ANA_MSG_INFO("Using POOL access");
103 #endif
104 
105  // Get and parse the command-line arguments
106  po::options_description desc("Running a simple truth analysis");
107  std::string outputName,inputName;
108  desc.add_options()
109  ("help,h", "print usage and exit")
110  ("output,o", po::value<std::string>(&outputName), "Output file name")
111  ("input,i", po::value<std::string>(&inputName), "Input file name")
112  ("nevents", po::value<int>()->default_value(-1), "number of events to run on (set to -1 to ignore it")
113  ;
114 
115  po::variables_map vm;
116  po::store( po::command_line_parser(argc, argv).options(desc).run(), vm);
117  po::notify(vm);
118 
119  if (vm.count("help")) {
120  std::cout << desc << std::endl;
121  return 1;
122  }
123 
124  long long nevents = -1;
125  if (vm.count("nevents")) {
126  nevents = vm["nevents"].as<int>();
127  }
128 
129  Info( "Reading from %s and writing to %s" , inputName.c_str() , outputName.c_str() );
130 
131  // Input chain
132  std::unique_ptr< TFile > ifile( TFile::Open( inputName.c_str() , "READ" ) );
133  ANA_CHECK( ifile.get() );
134 #ifdef XAOD_STANDALONE
135  xAOD::TEvent event(xAOD::TEvent::kClassAccess);
136 #else
137  POOL::TEvent event(POOL::TEvent::kClassAccess);
138 #endif
139  ANA_CHECK( event.readFrom( ifile.get() ) );
140 
141  // Load metadata
142  event.getEntries();
143 
144  // Make some temporary variables that we'll get out during the event loop
145  const size_t nParticleContainers = 9;
146  std::string particleKeyList[nParticleContainers] = { "TruthElectrons", "TruthMuons", "TruthPhotons", "TruthTaus", "TruthNeutrinos", "TruthBSM", "TruthBottom", "TruthTop", "TruthBoson" };
147  const xAOD::TruthEventContainer* xTruthEventContainer(nullptr);
148  const xAOD::EventInfo* xEventInfo(nullptr);
149  const xAOD::JetContainer* smallRJets(nullptr);
150  const xAOD::JetContainer* largeRJets(nullptr);
151  const xAOD::TruthMetaDataContainer* truthMeta(nullptr);
152  const xAOD::MissingETContainer* truthMET(nullptr);
153  const xAOD::TruthParticleContainer * truthParticles[nParticleContainers];
154  for (size_t n=0;n<nParticleContainers;++n) truthParticles[n] = nullptr;
155 
156 /*
157  Missing full collections with aux: TruthBosonsWithDecayParticles, TruthBosonsWithDecayVertices
158 */
159  // Make histograms
160  // MET histograms
161  TH1D* h_metNonInt = new TH1D("MET_NonInt","",50,0,500.);
162  TH1D* h_metInt = new TH1D("MET_Int","",50,0,200.);
163  TH1D* h_metIntOut = new TH1D("MET_IntOut","",50,0,100.);
164  TH1D* h_metIntMuons = new TH1D("MET_IntMuons","",50,0,300.);
165  // Particle collections: pT and connections for all
166  TH1D* h_partPt[nParticleContainers];
167  for (size_t n=0;n<nParticleContainers;++n) h_partPt[n] = new TH1D((particleKeyList[n]+"_pT").c_str(),"",50,0.,500.);
168  TH1D* h_partConn[nParticleContainers];
169  for (size_t n=0;n<nParticleContainers;++n) h_partConn[n] = new TH1D((particleKeyList[n]+"_Connections").c_str(),"",35,-10,25);
170  // Isolation for e/y/u/tau
171  TH1D* h_elPtCone = new TH1D("ElPtCone","",50,0.,20.);
172  TH1D* h_elEtCone = new TH1D("ElEtCone","",50,0.,20.);
173  TH1D* h_muPtCone = new TH1D("MuPtCone","",50,0.,20.);
174  TH1D* h_muEtCone = new TH1D("MuEtCone","",50,0.,20.);
175  TH1D* h_phPtCone = new TH1D("PhPtCone","",50,0.,20.);
176  TH1D* h_phEtCone = new TH1D("PhEtCone","",50,0.,20.);
177  // MCTC decorations for e/y/u/tau/nu
178  TH1D* h_elType = new TH1D("ElType","",50,0,50);
179  TH1D* h_elOrig = new TH1D("ElOrigin","",50,0,50);
180  TH1D* h_muType = new TH1D("MuType","",50,0,50);
181  TH1D* h_muOrig = new TH1D("MuOrigin","",50,0,50);
182  TH1D* h_phType = new TH1D("PhType","",50,0,50);
183  TH1D* h_phOrig = new TH1D("PhOrigin","",50,0,50);
184  TH1D* h_taType = new TH1D("TaType","",50,0,50);
185  TH1D* h_taOrig = new TH1D("TaOrigin","",50,0,50);
186  TH1D* h_nuType = new TH1D("NuType","",50,0,50);
187  TH1D* h_nuOrig = new TH1D("NuOrigin","",50,0,50);
188  // Dressed momenta for e/mu/tau
189  TH1D* h_elDressedPt = new TH1D("ElDressedPt","",50,0.,200.);
190  TH1D* h_muDressedPt = new TH1D("MuDressedPt","",50,0.,200.);
191  TH1D* h_taDressedPt = new TH1D("TaDressedPt","",50,0.,200.);
192  // Truth jets: pT, three flavor classifiers
193  TH1D* h_jetPt = new TH1D("JetPt","",50,0,500.);
194  TH1D* h_jetFTAG = new TH1D("JetFTAG","",25,0,25);
195  TH1D* h_jetJeMe = new TH1D("JetJeMe","",25,0,25);
196  TH1D* h_jetFull = new TH1D("JetFull","",50,0,50);
197  // Large R : pT, tau2, D2
198  TH1D* h_jetLRPt = new TH1D("JetLRPt","",50,0,500.);
199  TH1D* h_jetLRT2 = new TH1D("JetLRT2","",50,0,500.);
200  TH1D* h_jetLRD2 = new TH1D("JetLRD2","",50,0,500.);
201  // Truth events: PDF info , cross section , filter outcome
202  TH1D* h_x1 = new TH1D("X1","",50,0,1.);
203  TH1D* h_x2 = new TH1D("X2","",50,0,1.);
204  TH1D* h_xsec = new TH1D("XSec","",50,0,1.);
205  TH1D* h_HTFilt = new TH1D("HTFilt","",50,0,1000.);
206  // Lazy for truth weights
207  asg::AnaToolHandle< PMGTools::IPMGTruthWeightTool > weightTool("PMGTools::PMGTruthWeightTool/PMGTruthWeightTool");
208  ANA_CHECK(weightTool.retrieve());
209 
210  // For the weights in the file
211  std::vector<TH1D*> h_weights;
212  // For testing the truth metadata
213  uint32_t channelNumber = 0;
214  std::vector<std::string> weightNames;
215 
216  // Into the event loop, with an optional cap
217  long long nEvents = nevents > 0 ? std::min(static_cast<long long>(event.getEntries()), nevents) : event.getEntries();
218  Info( APP_NAME , "Beginning event loop over %llu events." , nEvents );
219  for (long evt=0;evt<nEvents;++evt){
220  // Grab the data
221  event.getEntry(evt);
222  if (evt%1000==0) Info( APP_NAME , "Working on entry %lu" , evt );
223 
224  // Get the containers out
225  CHECK_RETRIEVE( xTruthEventContainer , "TruthEvents" )
226  CHECK_RETRIEVE( xEventInfo , "EventInfo" )
227  CHECK_RETRIEVE( smallRJets , "AntiKt4TruthDressedWZJets" )
228  CHECK_RETRIEVE( largeRJets , "AntiKt10TruthTrimmedPtFrac5SmallR20Jets" )
229  CHECK_RETRIEVE( truthMET , "MET_Truth" )
230  for (size_t n=0;n<nParticleContainers;++n){
231  CHECK_RETRIEVE( truthParticles[n] , particleKeyList[n] )
232  }
233 
234  if (!event.retrieveMetaInput( truthMeta , "TruthMetaData" ).isSuccess()){
235  Error( APP_NAME , "Could not load event TruthMetaData from the file!" );
236  throw std::runtime_error("Could not load event TruthMetaData from the file!");
237  }
238 
239  // Metadata check
240  if (truthMeta->size()>1){
241  Error( APP_NAME , "Truth metadata size: %lu . No one will look past item 0!" , truthMeta->size() );
242  throw std::runtime_error("Truth metadata size >1");
243  }
244  if (channelNumber==0){
245  channelNumber = (*truthMeta)[0]->mcChannelNumber();
246  weightNames = std::vector<std::string>((*truthMeta)[0]->weightNames());
247  Info( APP_NAME , "Got channel number %u and %lu weight names" , channelNumber , weightNames.size() );
248  }
249  if (channelNumber != (*truthMeta)[0]->mcChannelNumber()){
250  Error( APP_NAME , "Channel number changed mid-file! Was: %u now: %u " , channelNumber , (*truthMeta)[0]->mcChannelNumber() );
251  throw std::runtime_error("Channel number changed mid-file!");
252  }
253  if (weightNames != (*truthMeta)[0]->weightNames() ){
254  Error( APP_NAME , "Weights have changed!" );
255  for (size_t n=0;n<std::max( weightNames.size() , (*truthMeta)[0]->weightNames().size() );++n){
256  std::cerr << " " << n << " ";
257  if (n<weightNames.size()) std::cerr << weightNames[n] << " ";
258  else std::cerr << "- ";
259  if (n<(*truthMeta)[0]->weightNames().size()) std::cerr << (*truthMeta)[0]->weightNames()[n] << " ";
260  else std::cerr << "- ";
261  std::cerr << std::endl;
262  }
263  throw std::runtime_error("Weights have changed!");
264  }
265  // Event weight handling
266  if (h_weights.size()==0){
267  // First event, init!
268  for (auto & name : weightNames ){
269  h_weights.push_back( new TH1D(("h_W_"+name).c_str(),"",100,-10.,10.) );
270  }
271  h_weights.push_back( new TH1D("h_W_nominalTest","",100,-10.,10.) );
272  }
273  for (size_t n=0;n<weightNames.size();++n) h_weights[n]->Fill( weightTool->getWeight(xEventInfo,weightNames[n]) );
274  // Eventually this should be the nominal weight without needing to give an explicit name
275  h_weights[weightNames.size()]->Fill( weightTool->getWeight(xEventInfo," nominal ") );
276  // Event info
277  float x1=0.,x2=0.;
278  (*xTruthEventContainer)[0]->pdfInfoParameter( x1 , xAOD::TruthEvent::X1 );
279  (*xTruthEventContainer)[0]->pdfInfoParameter( x2 , xAOD::TruthEvent::X2 );
280  h_x1->Fill( x1 );
281  h_x2->Fill( x2 );
282  h_xsec->Fill( (*xTruthEventContainer)[0]->crossSection() );
283  static const SG::ConstAccessor<float> GenFiltHTAcc ("GenFiltHT");
284  h_HTFilt->Fill( GenFiltHTAcc (*xEventInfo ) );
285  // For MET: NonInt, Int, IntOut, IntMuons
286  h_metNonInt->Fill( (*truthMET)["NonInt"]->met()*0.001 );
287  h_metNonInt->Fill( (*truthMET)["Int"]->met()*0.001 );
288  h_metNonInt->Fill( (*truthMET)["IntOut"]->met()*0.001 );
289  h_metNonInt->Fill( (*truthMET)["IntMuons"]->met()*0.001 );
290  // Truth particles
291  for (size_t n=0;n<nParticleContainers;++n){ // PT and connections for all
292  for (const auto * p : *truthParticles[n]){
293  h_partPt[n]->Fill( p->pt() );
294  h_partConn[n]->Fill( countChildren( p ) );
295  h_partConn[n]->Fill( -1-countParents( p ) );
296  }
297  }
298 
299  static const SG::ConstAccessor<float> ptcone30Acc("ptcone30");
300  static const SG::ConstAccessor<float> ptcone20Acc("ptcone20");
301  static const SG::ConstAccessor<float> etcone20Acc("etcone20");
302  static const SG::ConstAccessor<float> pt_dressedAcc("pt_dressed");
303  static const SG::ConstAccessor<float> pt_vis_dressedAcc("pt_vis_dressed");
304  static const SG::ConstAccessor<float> Tau2_wtaAcc("Tau2_wta");
305  static const SG::ConstAccessor<float> D2Acc("D2");
306  static const SG::ConstAccessor<unsigned int> classifierParticleTypeAcc("classifierParticleType");
307  static const SG::ConstAccessor<unsigned int> classifierParticleOriginAcc("classifierParticleOrigin");
308  static const SG::ConstAccessor<int> HadronConeExclTruthLabelIDAcc("HadronConeExclTruthLabelID");
309  static const SG::ConstAccessor<int> PartonTruthLabelIDAcc("PartonTruthLabelID");
310  static const SG::ConstAccessor<int> TrueFlavorAcc("TrueFlavor");
311 
312  for (const auto * p : *truthParticles[0]){ // Electrons
313  h_elPtCone->Fill( ptcone30Acc(*p)*0.001 );
314  h_elEtCone->Fill( etcone20Acc(*p)*0.001 );
315  h_elDressedPt->Fill( pt_dressedAcc(*p)*0.001 );
316  h_elType->Fill( classifierParticleTypeAcc(*p) );
317  h_elOrig->Fill( classifierParticleOriginAcc(*p) );
318  }
319  for (const auto * p : *truthParticles[1]){ // Muons
320  h_muPtCone->Fill( ptcone30Acc(*p)*0.001 );
321  h_muEtCone->Fill( etcone20Acc(*p)*0.001 );
322  h_muDressedPt->Fill( pt_dressedAcc(*p)*0.001 );
323  h_muType->Fill( classifierParticleTypeAcc(*p) );
324  h_muOrig->Fill( classifierParticleOriginAcc(*p) );
325  }
326  for (const auto * p : *truthParticles[2]){ // Photons
327  h_phPtCone->Fill( ptcone20Acc(*p)*0.001 );
328  h_phEtCone->Fill( etcone20Acc(*p)*0.001 );
329  h_phType->Fill( classifierParticleTypeAcc(*p) );
330  h_phOrig->Fill( classifierParticleOriginAcc(*p) );
331  }
332  for (const auto * p : *truthParticles[3]){ // Taus
333  h_taDressedPt->Fill( pt_vis_dressedAcc(*p)*0.001 );
334  h_taType->Fill( classifierParticleTypeAcc(*p) );
335  h_taOrig->Fill( classifierParticleOriginAcc(*p) );
336  }
337  for (const auto * p : *truthParticles[4]){ // Neutrinos
338  h_nuType->Fill( classifierParticleTypeAcc(*p) );
339  h_nuOrig->Fill( classifierParticleOriginAcc(*p) );
340  }
341  for (const auto * j : *smallRJets){ // Small-R jets
342  h_jetPt->Fill( j->pt()*0.001 );
343  h_jetFTAG->Fill( HadronConeExclTruthLabelIDAcc(*j) );
344  h_jetJeMe->Fill( PartonTruthLabelIDAcc(*j) );
345  h_jetFull->Fill( TrueFlavorAcc(*j) );
346  }
347  for (const auto * j : *largeRJets){ // Large-R jets
348  h_jetLRPt->Fill( j->pt()*0.001 );
349  h_jetLRT2->Fill( Tau2_wtaAcc(*j) );
350  h_jetLRD2->Fill( D2Acc(*j) );
351  }
352 
353  } // End of event loop
354  Info( APP_NAME , "Done with event loop" );
355 
356  // Output file
357  TFile * oRoot = new TFile(outputName.c_str(),"RECREATE");
358  oRoot->cd();
359 
360  // Write histograms
361  // MET histograms
362  h_metNonInt->Write();
363  h_metInt->Write();
364  h_metIntOut->Write();
365  h_metIntMuons->Write();
366  // Truth particle histograms
367  for (size_t n=0;n<nParticleContainers;++n) h_partPt[n]->Write();
368  for (size_t n=0;n<nParticleContainers;++n) h_partConn[n]->Write();
369  h_elPtCone->Write();
370  h_elEtCone->Write();
371  h_muPtCone->Write();
372  h_muEtCone->Write();
373  h_phPtCone->Write();
374  h_phEtCone->Write();
375  h_elDressedPt->Write();
376  h_muDressedPt->Write();
377  h_taDressedPt->Write();
378  h_elType->Write();
379  h_elOrig->Write();
380  h_muType->Write();
381  h_muOrig->Write();
382  h_phType->Write();
383  h_phOrig->Write();
384  h_taType->Write();
385  h_taOrig->Write();
386  h_nuType->Write();
387  h_nuOrig->Write();
388  // Truth jet histograms
389  h_jetPt->Write();
390  h_jetFTAG->Write();
391  h_jetJeMe->Write();
392  h_jetFull->Write();
393  h_jetLRPt->Write();
394  h_jetLRT2->Write();
395  h_jetLRD2->Write();
396  // Event histograms
397  h_x1->Write();
398  h_x2->Write();
399  h_xsec->Write();
400  h_HTFilt->Write();
401  for (auto * h : h_weights) h->Write();
402 
403  // Close up -- all done!
404  oRoot->Close();
405 
406  // trigger finalization of all services and tools created by the Gaudi Application
407 #ifndef XAOD_STANDALONE
408  if (app->finalize().isFailure()){
409  Warning( APP_NAME , "Finalization failed?" );
410  }
411 #endif
412 
413  Info( APP_NAME , "All done -- goodbye." );
414 
415  return 0;
416 }
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The different types of error that can be flagged in the L1TopoRDO.
Definition: Error.h:16
LArG4GenerateShowerLib.nevents
nevents
Definition: LArG4GenerateShowerLib.py:19
LArCellNtuple.ifile
string ifile
Definition: LArCellNtuple.py:133
countParents
int countParents(const xAOD::TruthParticle *p)
Definition: TruthDerivationTester.cxx:75
xAOD::TEvent
Tool for accessing xAOD files outside of Athena.
Definition: Control/xAODRootAccess/xAODRootAccess/TEvent.h:57
xAOD::Init
StatusCode Init(const char *appname)
Function initialising ROOT/PyROOT for using the ATLAS EDM.
Definition: Init.cxx:31
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