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PatVertexAnalyzer Class Reference
Inheritance diagram for PatVertexAnalyzer:
edm::EDAnalyzer edm::EDConsumerBase

Public Member Functions

virtual void analyze (const edm::Event &event, const edm::EventSetup &es) override
 
virtual void beginJob () override
 
 PatVertexAnalyzer (const edm::ParameterSet &params)
 constructor and destructor More...
 
 ~PatVertexAnalyzer ()
 
- Public Member Functions inherited from edm::EDAnalyzer
void callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
 
 EDAnalyzer ()
 
ModuleDescription const & moduleDescription () const
 
std::string workerType () const
 
virtual ~EDAnalyzer ()
 
- Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfoconsumesInfo () const
 
 EDConsumerBase ()
 
ProductHolderIndexAndSkipBit indexFrom (EDGetToken, BranchType, TypeID const &) const
 
void itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
 
void itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
 
std::vector
< ProductHolderIndexAndSkipBit >
const & 
itemsToGetFromEvent () const
 
void labelsForToken (EDGetToken iToken, Labels &oLabels) const
 
void modulesDependentUpon (const std::string &iProcessName, std::vector< const char * > &oModuleLabels) const
 
void modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
 
bool registeredToConsume (ProductHolderIndex, bool, BranchType) const
 
bool registeredToConsumeMany (TypeID const &, BranchType) const
 
void updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
 
virtual ~EDConsumerBase ()
 

Private Attributes

edm::EDGetTokenT
< reco::GenParticleCollection
genParticlesToken_
 
TH1 * nTracks_
 
TH1 * nVertices_
 
edm::EDGetTokenT
< reco::VertexCollection
srcToken_
 
TH1 * x_
 
TH1 * xDelta_
 
TH1 * xErr_
 
TH1 * xPull_
 
TH1 * y_
 
TH1 * yDelta_
 
TH1 * yErr_
 
TH1 * yPull_
 
TH1 * z_
 
TH1 * zDelta_
 
TH1 * zErr_
 
TH1 * zPull_
 

Additional Inherited Members

- Public Types inherited from edm::EDAnalyzer
typedef EDAnalyzer ModuleType
 
- Public Types inherited from edm::EDConsumerBase
typedef ProductLabels Labels
 
- Static Public Member Functions inherited from edm::EDAnalyzer
static const std::string & baseType ()
 
static void fillDescriptions (ConfigurationDescriptions &descriptions)
 
static void prevalidate (ConfigurationDescriptions &)
 
- Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType > consumes (edm::InputTag const &tag)
 
EDGetToken consumes (const TypeToGet &id, edm::InputTag const &tag)
 
template<BranchType B>
EDGetToken consumes (TypeToGet const &id, edm::InputTag const &tag)
 
ConsumesCollector consumesCollector ()
 Use a ConsumesCollector to gather consumes information from helper functions. More...
 
template<typename ProductType , BranchType B = InEvent>
void consumesMany ()
 
void consumesMany (const TypeToGet &id)
 
template<BranchType B>
void consumesMany (const TypeToGet &id)
 
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType > mayConsume (edm::InputTag const &tag)
 
EDGetToken mayConsume (const TypeToGet &id, edm::InputTag const &tag)
 
template<BranchType B>
EDGetToken mayConsume (const TypeToGet &id, edm::InputTag const &tag)
 

Detailed Description

Definition at line 26 of file PatVertexAnalyzer.cc.

Constructor & Destructor Documentation

PatVertexAnalyzer::PatVertexAnalyzer ( const edm::ParameterSet params)

constructor and destructor

Definition at line 48 of file PatVertexAnalyzer.cc.

48  :
49  srcToken_(consumes<reco::VertexCollection>(params.getParameter<edm::InputTag>("src"))),
50  genParticlesToken_(consumes<reco::GenParticleCollection>(params.getParameter<edm::InputTag>("mc")))
51 {
52 }
T getParameter(std::string const &) const
edm::EDGetTokenT< reco::GenParticleCollection > genParticlesToken_
edm::EDGetTokenT< reco::VertexCollection > srcToken_
PatVertexAnalyzer::~PatVertexAnalyzer ( )

Definition at line 54 of file PatVertexAnalyzer.cc.

55 {
56 }

Member Function Documentation

void PatVertexAnalyzer::analyze ( const edm::Event event,
const edm::EventSetup es 
)
overridevirtual

Implements edm::EDAnalyzer.

Definition at line 80 of file PatVertexAnalyzer.cc.

References genParticlesToken_, nTracks_, nVertices_, MetAnalyzer::pv(), srcToken_, reco::Vertex::tracksSize(), reco::Vertex::x(), x_, xDelta_, xErr_, reco::Vertex::xError(), xPull_, reco::Vertex::y(), y_, yDelta_, yErr_, reco::Vertex::yError(), yPull_, reco::Vertex::z(), z_, zDelta_, zErr_, reco::Vertex::zError(), and zPull_.

81 {
82  // handle to the primary vertex collection
84  event.getByToken(srcToken_, pvHandle);
85 
86  // handle to the generator particles (i.e. the MC truth)
88  event.getByToken(genParticlesToken_, genParticlesHandle);
89 
90  // extract the position of the simulated vertex
91  math::XYZPoint simPV = (*genParticlesHandle)[2].vertex();
92 
93  // the number of reconstructed primary vertices
94  nVertices_->Fill(pvHandle->size());
95 
96  // if we have at least one, use the first (highest pt^2 sum)
97  if (!pvHandle->empty()) {
98  const reco::Vertex &pv = (*pvHandle)[0];
99 
100  nTracks_->Fill(pv.tracksSize());
101 
102  x_->Fill(pv.x());
103  y_->Fill(pv.y());
104  z_->Fill(pv.z());
105 
106  xErr_->Fill(pv.xError());
107  yErr_->Fill(pv.yError());
108  zErr_->Fill(pv.zError());
109 
110  xDelta_->Fill(pv.x() - simPV.X());
111  yDelta_->Fill(pv.y() - simPV.Y());
112  zDelta_->Fill(pv.z() - simPV.Z());
113 
114  xPull_->Fill((pv.x() - simPV.X()) / pv.xError());
115  yPull_->Fill((pv.y() - simPV.Y()) / pv.yError());
116  zPull_->Fill((pv.z() - simPV.Z()) / pv.zError());
117 
118  // we could access the tracks using the
119  // pv.tracks_begin() ... pv.tracks_end() iterators
120  }
121 }
edm::EDGetTokenT< reco::GenParticleCollection > genParticlesToken_
double zError() const
error on z
Definition: Vertex.h:118
double y() const
y coordinate
Definition: Vertex.h:110
edm::EDGetTokenT< reco::VertexCollection > srcToken_
double z() const
y coordinate
Definition: Vertex.h:112
double x() const
x coordinate
Definition: Vertex.h:108
double xError() const
error on x
Definition: Vertex.h:114
XYZPointD XYZPoint
point in space with cartesian internal representation
Definition: Point3D.h:12
double yError() const
error on y
Definition: Vertex.h:116
size_t tracksSize() const
number of tracks
Definition: Vertex.cc:34
void PatVertexAnalyzer::beginJob ( void  )
overridevirtual

Reimplemented from edm::EDAnalyzer.

Definition at line 58 of file PatVertexAnalyzer.cc.

References TFileService::make(), nTracks_, nVertices_, x_, xDelta_, xErr_, xPull_, y_, yDelta_, yErr_, yPull_, z_, zDelta_, zErr_, and zPull_.

59 {
60  // retrieve handle to auxiliary service
61  // used for storing histograms into ROOT file
63 
64  nVertices_ = fs->make<TH1F>("nVertices", "number of reconstructed primary vertices", 50, 0, 50);
65  nTracks_ = fs->make<TH1F>("nTracks", "number of tracks at primary vertex", 100, 0, 300);
66  x_ = fs->make<TH1F>("pvX", "primary vertex x", 100, -0.1, 0.1);
67  y_ = fs->make<TH1F>("pvY", "primary vertex y", 100, -0.1, 0.1);
68  z_ = fs->make<TH1F>("pvZ", "primary vertex z", 100, -30, 30);
69  xErr_ = fs->make<TH1F>("pvErrorX", "primary vertex x error", 100, 0, 0.005);
70  yErr_ = fs->make<TH1F>("pvErrorY", "primary vertex y error", 100, 0, 0.005);
71  zErr_ = fs->make<TH1F>("pvErrorZ", "primary vertex z error", 100, 0, 0.01);
72  xDelta_ = fs->make<TH1F>("pvDeltaX", "x shift wrt simulated vertex", 100, -0.01, 0.01);
73  yDelta_ = fs->make<TH1F>("pvDeltaY", "y shift wrt simulated vertex", 100, -0.01, 0.01);
74  zDelta_ = fs->make<TH1F>("pvDeltaZ", "z shift wrt simulated vertex", 100, -0.02, 0.02);
75  xPull_ = fs->make<TH1F>("pvPullX", "primary vertex x pull", 100, -5, 5);
76  yPull_ = fs->make<TH1F>("pvPullY", "primary vertex y pull", 100, -5, 5);
77  zPull_ = fs->make<TH1F>("pvPullZ", "primary vertex z pull", 100, -5, 5);
78 }
T * make(const Args &...args) const
make new ROOT object
Definition: TFileService.h:64

Member Data Documentation

edm::EDGetTokenT<reco::GenParticleCollection> PatVertexAnalyzer::genParticlesToken_
private

Definition at line 39 of file PatVertexAnalyzer.cc.

Referenced by analyze().

TH1 * PatVertexAnalyzer::nTracks_
private

Definition at line 41 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1* PatVertexAnalyzer::nVertices_
private

Definition at line 41 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

edm::EDGetTokenT<reco::VertexCollection> PatVertexAnalyzer::srcToken_
private

Definition at line 38 of file PatVertexAnalyzer.cc.

Referenced by analyze().

TH1* PatVertexAnalyzer::x_
private

Definition at line 42 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1* PatVertexAnalyzer::xDelta_
private

Definition at line 44 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1* PatVertexAnalyzer::xErr_
private

Definition at line 43 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1* PatVertexAnalyzer::xPull_
private

Definition at line 45 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::y_
private

Definition at line 42 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::yDelta_
private

Definition at line 44 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::yErr_
private

Definition at line 43 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::yPull_
private

Definition at line 45 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::z_
private

Definition at line 42 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::zDelta_
private

Definition at line 44 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::zErr_
private

Definition at line 43 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().

TH1 * PatVertexAnalyzer::zPull_
private

Definition at line 45 of file PatVertexAnalyzer.cc.

Referenced by analyze(), and beginJob().