Histos Class Reference

#include <Histos.h>

Public Types
typedef std::map< std::string, TObject * >::const_iterator	HistoItr

Public Member Functions
void	addObject (const std::string &name, TObject *obj)
	Add any object. More...
void	book (const std::string &name, int nx, float xmin, float xmax, const std::string &option)
void	book (const std::string &name, int nx, float xmin, float xmax, int ny=0, float ymin=0., float ymax=0.)
	Book an histogram (1D or 2D) More...
void	bookByNumber (const std::string &name, int n1, int n2, int nx, float xmin, float xmax, int ny=0, float ymin=0., float ymax=0.)
void	debug (std::string p="") const
void	divide (const std::string &h1, const std::string &h2, const std::string &h3)
	Divide two histograms and put the result in the first. More...
void	fill (const std::string &name, float val1, float val2=1., float val3=1.)
	Fill an histogram. More...
void	fillByNumber (const std::string &name, int number, float val1, float val2=1., float val3=1.)
void	put (const std::string &file, std::string name="")
	Write one or all histogram(s) in a file. More...
virtual	~Histos ()
	Destructor. More...

Static Public Member Functions
static Histos *	instance ()

Private Member Functions
	Histos ()

Private Attributes
TObject *	theHisto
std::map< std::string, TObject * >	theHistos
std::map< std::string, TObject * >	theObjects
std::map< std::string, unsigned >	theTypes

Static Private Attributes
static Histos *	myself = nullptr

Detailed Description

This class provides an interface to root histograms

Author

Patrick Janot $Date: 16 Jan 2004 19:30

Definition at line 19 of file Histos.h.

Member Typedef Documentation

HistoItr

typedef std::map<std::string, TObject*>::const_iterator Histos::HistoItr

Definition at line 21 of file Histos.h.

Constructor & Destructor Documentation

~Histos()

Histos::~Histos ( )

virtual

Destructor.

Definition at line 21 of file Histos.cc.

{}

Histos()

Histos::Histos ( )

private

Definition at line 13 of file Histos.cc.

{}

Referenced by instance().

Member Function Documentation

addObject()

void Histos::addObject	(	const std::string &	name,
		TObject *	obj
	)

Add any object.

Definition at line 115 of file Histos.cc.

                                                          {
  HistoItr hh = theObjects.find(name);
  if (hh != theObjects.end()) {
    std::cout << "FamosHistos::addObject() : Object " << name << " already exists" << std::endl;
    return;
  }
  // Potential source of memory leaks if not carefully used
  theObjects.insert(std::pair<std::string, TObject*>(name, obj->Clone()));
}

References gather_cfg::cout, hh, Skims_PA_cff::name, getGTfromDQMFile::obj, and theObjects.

book() [1/2]

void Histos::book	(	const std::string &	name,
		int	nx,
		float	xmin,
		float	xmax,
		const std::string &	option
	)

Book a TProfile option="S" -> spread "" -> error on mean (from Root documentation)

Definition at line 39 of file Histos.cc.

                                                                                                {
  if (theHistos.find(name) != theHistos.end()) {
    std::cout << "Histos::book() : Histogram " << name << " exists already. Nothing done" << std::endl;
 
  } else {
    theHistos[name] = new TProfile(name.c_str(), "", nx, xmin, xmax, option.c_str());
    theTypes[name] = 3;
  }
}

References gather_cfg::cout, Skims_PA_cff::name, fileinputsource_cfi::option, theHistos, theTypes, TrackerOfflineValidation_Dqm_cff::xmax, and TrackerOfflineValidation_Dqm_cff::xmin.

book() [2/2]

void Histos::book	(	const std::string &	name,
		int	nx,
		float	xmin,
		float	xmax,
		int	ny = 0,
		float	ymin = 0.,
		float	ymax = 0.
	)

Book an histogram (1D or 2D)

Definition at line 23 of file Histos.cc.

                                                                                                       {
  if (theHistos.find(name) != theHistos.end()) {
    std::cout << "Histos::book() : Histogram " << name << " exists already. Nothing done" << std::endl;
 
  } else {
    if (ny) {
      theHistos[name] = new TH2F(name.c_str(), "", nx, xmin, xmax, ny, ymin, ymax);
      theTypes[name] = 2;
 
    } else {
      theHistos[name] = new TH1F(name.c_str(), "", nx, xmin, xmax);
      theTypes[name] = 1;
    }
  }
}

References gather_cfg::cout, Skims_PA_cff::name, theHistos, theTypes, TrackerOfflineValidation_Dqm_cff::xmax, TrackerOfflineValidation_Dqm_cff::xmin, L1TOccupancyClient_cfi::ymax, and L1TOccupancyClient_cfi::ymin.

Referenced by bookByNumber().

bookByNumber()

void Histos::bookByNumber	(	const std::string &	name,
		int	n1,
		int	n2,
		int	nx,
		float	xmin,
		float	xmax,
		int	ny = 0,
		float	ymin = 0.,
		float	ymax = 0.
	)

Definition at line 151 of file Histos.cc.

                                                                                                           {
  if (n1 > n2) {
    std::cout << " Histos: problem with bookByNumber - Do nothing" << std::endl;
  }
  for (int ih = n1; ih <= n2; ++ih) {
    std::ostringstream oss;
    oss << name << ih;
    book(oss.str(), nx, xmin, xmax, ny, ymin, ymax);
  }
}

References book(), gather_cfg::cout, Skims_PA_cff::name, TrackerOfflineValidation_Dqm_cff::xmax, TrackerOfflineValidation_Dqm_cff::xmin, L1TOccupancyClient_cfi::ymax, and L1TOccupancyClient_cfi::ymin.

debug()

void Histos::debug ( std::string  p = "" ) const

inline

Definition at line 63 of file Histos.h.

{ std::cout << " Histos myMap : " << &theHistos << " " << p << std::endl; }

References gather_cfg::cout, AlCaHLTBitMon_ParallelJobs::p, and theHistos.

divide()

void Histos::divide	(	const std::string &	h1,
		const std::string &	h2,
		const std::string &	h3
	)

Divide two histograms and put the result in the first.

Definition at line 85 of file Histos.cc.

                                                                                 {
  HistoItr hh1 = theHistos.find(h1);
  HistoItr hh2 = theHistos.find(h2);
  HistoItr hh3 = theHistos.find(h3);
 
  if (hh1 == theHistos.end() || hh2 == theHistos.end() || hh3 != theHistos.end()) {
    if (hh1 == theHistos.end())
      std::cout << "Histos::divide() : First histo " << h1 << " does not exist" << std::endl;
 
    if (hh2 == theHistos.end())
      std::cout << "Histos::divide() : Second histo " << h2 << " does not exist" << std::endl;
 
    if (hh3 != theHistos.end())
      std::cout << "Histos::divide() : Third histo " << h3 << " already exists" << std::endl;
 
  } else {
    if (theTypes[h1] == 1 && theTypes[h2] == 1) {
      theHistos[h3] = (TH1F*)((*hh1).second)->Clone(h3.c_str());
      theTypes[h3] = 1;
      ((TH1F*)theHistos[h3])->Divide((TH1F*)((*hh2).second));
    }
 
    if (theTypes[h1] == 2 && theTypes[h2] == 2) {
      theHistos[h3] = (TH2F*)((*hh1).second)->Clone(h3.c_str());
      theTypes[h3] = 2;
      ((TH2F*)theHistos[h3])->Divide((TH2F*)((*hh2).second));
    }
  }
}

References gather_cfg::cout, theHistos, and theTypes.

Referenced by python.rootplot.utilities.Hist::__div__().

fill()

void Histos::fill	(	const std::string &	name,
		float	val1,
		float	val2 = 1.,
		float	val3 = 1.
	)

Fill an histogram.

Definition at line 125 of file Histos.cc.

                                                                           {
  //  std::cout << " Fill " << name << " " << val1 << " " << val2 << " " << val3 << std::endl;
  //  std::cout << &theHistos << std::endl;
  HistoItr hh = theHistos.find(name);
  //  std::cout << " Fill done " << std::endl;
  if (hh == theHistos.end()) {
    std::cout << "Histos::fill() : Histogram " << name << " does not exist" << std::endl;
 
  } else {
    if (theTypes[name] == 1)
      ((TH1F*)((*hh).second))->Fill(val1, val2);
 
    if (theTypes[name] == 2)
      ((TH2F*)((*hh).second))->Fill(val1, val2, val3);
 
    if (theTypes[name] == 3)
      ((TProfile*)((*hh).second))->Fill(val1, val2, val3);
  }
}

References gather_cfg::cout, HcalObjRepresent::Fill(), hh, Skims_PA_cff::name, theHistos, and theTypes.

Referenced by fillByNumber(), and CaloGeometryHelper::getClosestCell().

fillByNumber()

void Histos::fillByNumber	(	const std::string &	name,
		int	number,
		float	val1,
		float	val2 = 1.,
		float	val3 = 1.
	)

Definition at line 145 of file Histos.cc.

                                                                                               {
  std::ostringstream oss;
  oss << name << number;
  fill(oss.str(), val1, val2, val3);
}

References fill(), Skims_PA_cff::name, and contentValuesFiles::number.

instance()

Histos * Histos::instance ( )

static

Definition at line 15 of file Histos.cc.

                         {
  if (!myself)
    myself = new Histos();
  return myself;
}

References Histos(), and myself.

Referenced by EcalHitMaker::EcalHitMaker(), and CaloGeometryHelper::getClosestCell().

put()

void Histos::put	(	const std::string &	file,
		std::string	name = ""
	)

Write one or all histogram(s) in a file.

Definition at line 49 of file Histos.cc.

                                                      {
  TFile* f = new TFile(file.c_str(), "recreate");
  f->cd();
 
  HistoItr ho;
  for (ho = theObjects.begin(); ho != theObjects.end(); ++ho) {
    (*ho).second->Write((*ho).first.c_str());
  }
 
  HistoItr hh = theHistos.find(name);
  if (name.empty())
    for (hh = theHistos.begin(); hh != theHistos.end(); ++hh) {
      if (theTypes[(*hh).first] == 1)
        ((TH1F*)((*hh).second))->Write();
      if (theTypes[(*hh).first] == 2)
        ((TH2F*)((*hh).second))->Write();
      if (theTypes[(*hh).first] == 3)
        ((TProfile*)((*hh).second))->Write();
    }
 
  else if (hh != theHistos.end()) {
    if (theTypes[name] == 1)
      ((TH1F*)((*hh).second))->Write();
    if (theTypes[name] == 2)
      ((TH2F*)((*hh).second))->Write();
    if (theTypes[name] == 3)
      ((TProfile*)((*hh).second))->Write();
  }
 
  else
    std::cout << "Histos::put() : Histogram " << name << " does not exist. Nothing done" << std::endl;
 
  f->Write();
  f->Close();
}

References gather_cfg::cout, f, FrontierConditions_GlobalTag_cff::file, hh, photonIsolationHIProducer_cfi::ho, Skims_PA_cff::name, theHistos, theObjects, and theTypes.

Member Data Documentation

myself

Histos * Histos::myself = nullptr

staticprivate

Definition at line 71 of file Histos.h.

Referenced by instance().

theHisto

TObject* Histos::theHisto

private

Definition at line 74 of file Histos.h.

theHistos

std::map<std::string, TObject*> Histos::theHistos

private

Definition at line 75 of file Histos.h.

Referenced by book(), debug(), divide(), fill(), and put().

theObjects

std::map<std::string, TObject*> Histos::theObjects

private

Definition at line 77 of file Histos.h.

Referenced by addObject(), and put().

theTypes

std::map<std::string, unsigned> Histos::theTypes

private

Definition at line 76 of file Histos.h.

Referenced by book(), divide(), fill(), and put().