[u/mrichter/AliRoot.git] / PWG0 / dNdEta / AlidNdEtaCorrection.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

#include "AlidNdEtaCorrection.h"

#include <AliLog.h>
#include <TCanvas.h>
#include <TH3F.h>
#include <TH2F.h>
#include <TH1D.h>
#include <TDirectory.h>
#include <AliCorrection.h>
#include <AliCorrectionMatrix2D.h>
#include <AliCorrectionMatrix3D.h>

//____________________________________________________________________
ClassImp(AlidNdEtaCorrection)

//____________________________________________________________________
AlidNdEtaCorrection::AlidNdEtaCorrection()
  : TNamed(),
  fTrack2ParticleCorrection(0),
  fVertexRecoCorrection(0),
  fTriggerBiasCorrectionMBToINEL(0),
  fTriggerBiasCorrectionMBToNSD(0),
  fTriggerBiasCorrectionMBToND(0)
{
  // default constructor
}

//____________________________________________________________________
AlidNdEtaCorrection::AlidNdEtaCorrection(const Char_t* name, const Char_t* title, AliPWG0Helper::AnalysisMode analysis)
  : TNamed(name, title),
  fTrack2ParticleCorrection(0),
  fVertexRecoCorrection(0),
  fTriggerBiasCorrectionMBToINEL(0),
  fTriggerBiasCorrectionMBToNSD(0),
  fTriggerBiasCorrectionMBToND(0)
{
  //
  // constructor
  //

  fTrack2ParticleCorrection = new AliCorrection("Track2Particle", "Track2Particle", analysis);
  fVertexRecoCorrection     = new AliCorrection("VertexReconstruction", "VertexReconstruction", analysis);

  fTriggerBiasCorrectionMBToINEL = new AliCorrection("TriggerBias_MBToINEL", "TriggerBias_MBToINEL", analysis);
  fTriggerBiasCorrectionMBToNSD  = new AliCorrection("TriggerBias_MBToNSD", "TriggerBias_MBToNSD", analysis);
  fTriggerBiasCorrectionMBToND   = new AliCorrection("TriggerBias_MBToND", "TriggerBias_MBToND", analysis);
}

//____________________________________________________________________
AlidNdEtaCorrection::~AlidNdEtaCorrection()
{
  // destructor

  if (fTrack2ParticleCorrection) {
    delete fTrack2ParticleCorrection;
    fTrack2ParticleCorrection = 0;
  }

  if (fVertexRecoCorrection) {
    delete fVertexRecoCorrection;
    fVertexRecoCorrection = 0;
  }

  if (fTriggerBiasCorrectionMBToINEL) {
    delete fTriggerBiasCorrectionMBToINEL;
    fTriggerBiasCorrectionMBToINEL = 0;
  }

  if (fTriggerBiasCorrectionMBToNSD) {
    delete fTriggerBiasCorrectionMBToNSD;
    fTriggerBiasCorrectionMBToNSD = 0;
  }

  if (fTriggerBiasCorrectionMBToND) {
    delete fTriggerBiasCorrectionMBToND;
    fTriggerBiasCorrectionMBToND = 0;
  }
}

//____________________________________________________________________
void
AlidNdEtaCorrection::Finish() {
  //
  // finish method
  //
  // divide the histograms in the AliCorrectionMatrix2D objects to get the corrections

  fTrack2ParticleCorrection->Divide();
  fVertexRecoCorrection->Divide();
  fTriggerBiasCorrectionMBToINEL->Divide();
  fTriggerBiasCorrectionMBToNSD->Divide();
  fTriggerBiasCorrectionMBToND->Divide();
}

//____________________________________________________________________
Long64_t AlidNdEtaCorrection::Merge(TCollection* list)
{
  // Merge a list of dNdEtaCorrection objects with this (needed for
  // PROOF).
  // Returns the number of merged objects (including this).

  if (!list)
    return 0;

  if (list->IsEmpty())
    return 1;

  TIterator* iter = list->MakeIterator();
  TObject* obj;

  // collections of measured and generated histograms
  TList* collectionNtrackToNparticle    = new TList;
  TList* collectionVertexReco           = new TList;
  TList* collectionTriggerBiasMBToINEL  = new TList;
  TList* collectionTriggerBiasMBToNSD   = new TList;
  TList* collectionTriggerBiasMBToND    = new TList;

  Int_t count = 0;
  while ((obj = iter->Next())) {

    AlidNdEtaCorrection* entry = dynamic_cast<AlidNdEtaCorrection*> (obj);
    if (entry == 0)
      continue;

    collectionNtrackToNparticle  ->Add(entry->fTrack2ParticleCorrection);
    collectionVertexReco         ->Add(entry->fVertexRecoCorrection);
    collectionTriggerBiasMBToINEL->Add(entry->fTriggerBiasCorrectionMBToINEL);
    collectionTriggerBiasMBToNSD ->Add(entry->fTriggerBiasCorrectionMBToNSD);
    collectionTriggerBiasMBToND  ->Add(entry->fTriggerBiasCorrectionMBToND);

    count++;
  }
  fTrack2ParticleCorrection      ->Merge(collectionNtrackToNparticle);
  fVertexRecoCorrection          ->Merge(collectionVertexReco);
  fTriggerBiasCorrectionMBToINEL ->Merge(collectionTriggerBiasMBToINEL);
  fTriggerBiasCorrectionMBToNSD  ->Merge(collectionTriggerBiasMBToNSD);
  fTriggerBiasCorrectionMBToND   ->Merge(collectionTriggerBiasMBToND);

  delete collectionNtrackToNparticle;
  delete collectionVertexReco;
  delete collectionTriggerBiasMBToINEL;
  delete collectionTriggerBiasMBToNSD;
  delete collectionTriggerBiasMBToND;

  return count+1;
}

//____________________________________________________________________
void AlidNdEtaCorrection::Add(AlidNdEtaCorrection* aCorrectionsToAdd, Float_t c) {
  //
  // adds the measured and generated of aCorrectionsToAdd to measured and generated
  // of all corrections in this

  fTrack2ParticleCorrection      ->Add(aCorrectionsToAdd->GetTrack2ParticleCorrection() ,c);
  fVertexRecoCorrection          ->Add(aCorrectionsToAdd->GetVertexRecoCorrection()     ,c);
  fTriggerBiasCorrectionMBToINEL ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionINEL(),c);
  fTriggerBiasCorrectionMBToNSD  ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionNSD() ,c);
  fTriggerBiasCorrectionMBToND   ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionND()  ,c);
    
}

//____________________________________________________________________
void AlidNdEtaCorrection::Reset(void) {
  //
  // reset all corrections
  // 

  fTrack2ParticleCorrection      ->Reset();
  fVertexRecoCorrection          ->Reset();
  fTriggerBiasCorrectionMBToINEL ->Reset();
  fTriggerBiasCorrectionMBToNSD  ->Reset();
  fTriggerBiasCorrectionMBToND   ->Reset();
    
}


//____________________________________________________________________
Bool_t AlidNdEtaCorrection::LoadHistograms(const Char_t* dir)
{
  //
  // loads the histograms
  // if dir is empty a directory with the name of this object is taken (like in SaveHistogram)
  //

  if (!dir)
    dir = GetName();

  if (!gDirectory->cd(dir))
    return kFALSE;

  fTrack2ParticleCorrection      ->LoadHistograms();
  fVertexRecoCorrection          ->LoadHistograms();
  fTriggerBiasCorrectionMBToINEL ->LoadHistograms();
  fTriggerBiasCorrectionMBToNSD  ->LoadHistograms();
  fTriggerBiasCorrectionMBToND   ->LoadHistograms();

  gDirectory->cd("..");

  return kTRUE;
}

//____________________________________________________________________
void AlidNdEtaCorrection::SaveHistograms()
{
  //
  // save the histograms
  //

  gDirectory->mkdir(fName.Data());
  gDirectory->cd(fName.Data());

  fTrack2ParticleCorrection     ->SaveHistograms();
  fVertexRecoCorrection         ->SaveHistograms();
  fTriggerBiasCorrectionMBToINEL->SaveHistograms();
  fTriggerBiasCorrectionMBToNSD ->SaveHistograms();
  fTriggerBiasCorrectionMBToND  ->SaveHistograms();

  gDirectory->cd("..");
}

//____________________________________________________________________
void AlidNdEtaCorrection::DrawHistograms()
{
  //
  // call the draw histogram method of the corrections
  //

  fTrack2ParticleCorrection     ->DrawHistograms();
  fVertexRecoCorrection         ->DrawHistograms();
  fTriggerBiasCorrectionMBToINEL->DrawHistograms();
  fTriggerBiasCorrectionMBToNSD ->DrawHistograms();
  fTriggerBiasCorrectionMBToND  ->DrawHistograms();
}

//____________________________________________________________________
void AlidNdEtaCorrection::DrawOverview(const char* canvasName)
{
  //
  // call the DrawOverview histogram method of the corrections
  //

  fTrack2ParticleCorrection     ->DrawOverview(canvasName);
  fVertexRecoCorrection         ->DrawOverview(canvasName);
  fTriggerBiasCorrectionMBToINEL->DrawOverview(canvasName);
  fTriggerBiasCorrectionMBToNSD ->DrawOverview(canvasName);
  fTriggerBiasCorrectionMBToND  ->DrawOverview(canvasName);
}

//____________________________________________________________________
void AlidNdEtaCorrection::FillMCParticle(Float_t vtx, Float_t eta, Float_t pt, Bool_t trigger, Bool_t vertex, Int_t processType)
{
  // fills a particle in the corrections
  // it is filled in generated or measured depending of the flags

  fTriggerBiasCorrectionMBToINEL->GetTrackCorrection()->FillGene(vtx, eta, pt);

  if (processType != AliPWG0Helper::kSD )
    fTriggerBiasCorrectionMBToNSD->GetTrackCorrection()->FillGene(vtx, eta, pt);

  if (processType == AliPWG0Helper::kND )
    fTriggerBiasCorrectionMBToND->GetTrackCorrection()->FillGene(vtx, eta, pt);

  if (!trigger)
    return;

  fTriggerBiasCorrectionMBToINEL->GetTrackCorrection()->FillMeas(vtx, eta, pt);
  fTriggerBiasCorrectionMBToNSD->GetTrackCorrection()->FillMeas(vtx, eta, pt);
  fTriggerBiasCorrectionMBToND->GetTrackCorrection()->FillMeas(vtx, eta, pt);
  fVertexRecoCorrection->GetTrackCorrection()->FillGene(vtx, eta, pt);

  if (!vertex)
    return;

  fVertexRecoCorrection->GetTrackCorrection()->FillMeas(vtx, eta, pt);
  fTrack2ParticleCorrection->GetTrackCorrection()->FillGene(vtx, eta, pt);
}

//____________________________________________________________________
void AlidNdEtaCorrection::FillTrackedParticle(Float_t vtx, Float_t eta, Float_t pt)
{
  // fills a tracked particle in the corrections

  fTrack2ParticleCorrection->GetTrackCorrection()->FillMeas(vtx, eta, pt);
}

//____________________________________________________________________
void AlidNdEtaCorrection::FillEvent(Float_t vtx, Float_t n, Bool_t trigger, Bool_t vertex, Int_t processType)
{
  // fills an event int he correction
  // it is filled in generated or measured depending of the flags

  fTriggerBiasCorrectionMBToINEL->GetEventCorrection()->FillGene(vtx, n);

  if ( processType != AliPWG0Helper::kSD )
    fTriggerBiasCorrectionMBToNSD->GetEventCorrection()->FillGene(vtx, n);

  if (processType == AliPWG0Helper::kND )
    fTriggerBiasCorrectionMBToND->GetEventCorrection()->FillGene(vtx, n);

  if (!trigger)
    return;

  fTriggerBiasCorrectionMBToINEL->GetEventCorrection()->FillMeas(vtx, n);
  fTriggerBiasCorrectionMBToNSD->GetEventCorrection()->FillMeas(vtx, n);
  fTriggerBiasCorrectionMBToND->GetEventCorrection()->FillMeas(vtx, n);
  fVertexRecoCorrection->GetEventCorrection()->FillGene(vtx, n);

  if (!vertex)
    return;

  fVertexRecoCorrection->GetEventCorrection()->FillMeas(vtx, n);
}

//____________________________________________________________________
Float_t AlidNdEtaCorrection::GetMeasuredFraction(CorrectionType correctionType, Float_t ptCutOff, Float_t eta, Int_t vertexBegin, Int_t vertexEnd, Bool_t debug)
{
  // calculates the fraction of particles measured (some are missed due to the pt cut off)
  //
  // uses the generated particle histogram from the correction passed, e.g. pass GetTrack2ParticleCorrection()

  if (!GetCorrection(correctionType))
    return -1;

  const TH3* generated = GetCorrection(correctionType)->GetTrackCorrection()->GetGeneratedHistogram();

  // find eta borders, if eta is negative assume -0.8 ... 0.8
  Int_t etaBegin = 0;
  Int_t etaEnd = 0;
  if (eta < -99)
  {
    etaBegin = generated->GetYaxis()->FindBin(-0.8);
    etaEnd = generated->GetYaxis()->FindBin(0.8);
  }
  else
  {
    etaBegin = generated->GetYaxis()->FindBin(eta);
    etaEnd = etaBegin;
  }

  if (vertexBegin == -1)
    vertexBegin = generated->GetXaxis()->FindBin(-9.99);

  if (vertexEnd == -1)
    vertexEnd = generated->GetXaxis()->FindBin(9.99);

  TH1D* ptProj = dynamic_cast<TH1D*> (generated->ProjectionZ(Form("%s_pt", generated->GetName()), vertexBegin, vertexEnd, etaBegin, etaEnd));
  //printf("GetMeasuredFraction: bin range %d %d %d %d\n", vertexBegin, vertexEnd, etaBegin, etaEnd);
  ptProj->GetXaxis()->SetTitle(generated->GetZaxis()->GetTitle());

  Int_t ptBin = ptProj->FindBin(ptCutOff);
  //printf("GetMeasuredFraction: bin range %d %d\n", ptBin, ptProj->GetNbinsX());
  Float_t abovePtCut = ptProj->Integral(ptBin, ptProj->GetNbinsX()+1);
  Float_t all = ptProj->Integral(1, ptProj->GetNbinsX()+1);

  if (all == 0)
    return -1;

  Float_t fraction = abovePtCut / all;

  //printf("GetMeasuredFraction: all %f above %f fraction %f\n", all, abovePtCut, fraction);

  if (debug)
  {
    new TCanvas;
    ptProj->Draw();
  }
  else
    delete ptProj;

  if (debug)
    printf("AlidNdEtaCorrection::GetMeasuredFraction: pt cut off = %f, eta = %f, => fraction = %f\n", ptCutOff, eta, fraction);

  return fraction;
}

//____________________________________________________________________
TH1* AlidNdEtaCorrection::GetMeasuredEventFraction(CorrectionType correctionType, Int_t multCut)
{
  // calculates the fraction of events above multCut (but including it)
  //
  // uses the generated event histogram from the correction passed, e.g. pass GetTrack2ParticleCorrection()

  if (!GetCorrection(correctionType))
    return 0;

  const TH2* generated = GetCorrection(correctionType)->GetEventCorrection()->GetGeneratedHistogram();

  TH1* allEvents = generated->ProjectionX(Form("%s_all", generated->GetName()), 1, generated->GetNbinsY());
  TH1* aboveEvents = generated->ProjectionX(Form("%s_above", generated->GetName()), generated->GetYaxis()->FindBin(multCut), generated->GetNbinsY());
  
  aboveEvents->Divide(aboveEvents, allEvents, 1, 1, "B");

  return aboveEvents;  
}

//____________________________________________________________________
void AlidNdEtaCorrection::ReduceInformation()
{
  // this function deletes the measured and generated histograms from the corrections to reduce the amount of data
  // in memory

  // these are needed for GetMeasuredFraction(): fTrack2ParticleCorrection->ReduceInformation();
  fVertexRecoCorrection          ->ReduceInformation();
  fTriggerBiasCorrectionMBToINEL ->ReduceInformation();
  fTriggerBiasCorrectionMBToNSD  ->ReduceInformation();
  fTriggerBiasCorrectionMBToND   ->ReduceInformation();
}

//____________________________________________________________________
AliCorrection* AlidNdEtaCorrection::GetCorrection(CorrectionType correctionType)
{
  // returns the given correction

  switch (correctionType)
  {
    case kNone : return 0;
    case kTrack2Particle : return fTrack2ParticleCorrection;
    case kVertexReco :     return fVertexRecoCorrection;
    case kINEL :           return fTriggerBiasCorrectionMBToINEL;
    case kNSD :            return fTriggerBiasCorrectionMBToNSD;
    case kND :             return fTriggerBiasCorrectionMBToND;
  }

  return 0;
}
Commit	Line	Data
d560b581	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
55e05544	16	/* $Id$ */
	17
	18	#include "AlidNdEtaCorrection.h"
	19
74fd10b3	20	#include <AliLog.h>
55e05544	21	#include <TCanvas.h>
847489f7	22	#include <TH3F.h>
47ab1f70	23	#include <TH2F.h>
847489f7	24	#include <TH1D.h>
d560b581	25	#include <TDirectory.h>
74fd10b3	26	#include <AliCorrection.h>
	27	#include <AliCorrectionMatrix2D.h>
	28	#include <AliCorrectionMatrix3D.h>
55e05544	29
	30	//____________________________________________________________________
	31	ClassImp(AlidNdEtaCorrection)
	32
	33	//____________________________________________________________________
8b3563f4	34	AlidNdEtaCorrection::AlidNdEtaCorrection()
	35	: TNamed(),
	36	fTrack2ParticleCorrection(0),
	37	fVertexRecoCorrection(0),
7584d357	38	fTriggerBiasCorrectionMBToINEL(0),
	39	fTriggerBiasCorrectionMBToNSD(0),
	40	fTriggerBiasCorrectionMBToND(0)
8b3563f4	41	{
	42	// default constructor
	43	}
	44
	45	//____________________________________________________________________
770a1f1d	46	AlidNdEtaCorrection::AlidNdEtaCorrection(const Char_t* name, const Char_t* title, AliPWG0Helper::AnalysisMode analysis)
8b3563f4	47	: TNamed(name, title),
38233af1	48	fTrack2ParticleCorrection(0),
38233af1	49	fVertexRecoCorrection(0),
7584d357	50	fTriggerBiasCorrectionMBToINEL(0),
	51	fTriggerBiasCorrectionMBToNSD(0),
	52	fTriggerBiasCorrectionMBToND(0)
8b3563f4	53	{
74fd10b3	54	//
55e05544	55	// constructor
	56	//
	57
0f67a57c	58	fTrack2ParticleCorrection = new AliCorrection("Track2Particle", "Track2Particle", analysis);
0f67a57c	59	fVertexRecoCorrection = new AliCorrection("VertexReconstruction", "VertexReconstruction", analysis);
1afae8ff	60
0f67a57c	61	fTriggerBiasCorrectionMBToINEL = new AliCorrection("TriggerBias_MBToINEL", "TriggerBias_MBToINEL", analysis);
	62	fTriggerBiasCorrectionMBToNSD = new AliCorrection("TriggerBias_MBToNSD", "TriggerBias_MBToNSD", analysis);
	63	fTriggerBiasCorrectionMBToND = new AliCorrection("TriggerBias_MBToND", "TriggerBias_MBToND", analysis);
55e05544	64	}
55e05544	65
38233af1	66	//____________________________________________________________________
	67	AlidNdEtaCorrection::~AlidNdEtaCorrection()
	68	{
	69	// destructor
	70
7584d357	71	if (fTrack2ParticleCorrection) {
38233af1	72	delete fTrack2ParticleCorrection;
	73	fTrack2ParticleCorrection = 0;
	74	}
	75
7584d357	76	if (fVertexRecoCorrection) {
38233af1	77	delete fVertexRecoCorrection;
	78	fVertexRecoCorrection = 0;
	79	}
	80
7584d357	81	if (fTriggerBiasCorrectionMBToINEL) {
	82	delete fTriggerBiasCorrectionMBToINEL;
	83	fTriggerBiasCorrectionMBToINEL = 0;
38233af1	84	}
38233af1	85
7584d357	86	if (fTriggerBiasCorrectionMBToNSD) {
	87	delete fTriggerBiasCorrectionMBToNSD;
	88	fTriggerBiasCorrectionMBToNSD = 0;
	89	}
	90
	91	if (fTriggerBiasCorrectionMBToND) {
	92	delete fTriggerBiasCorrectionMBToND;
	93	fTriggerBiasCorrectionMBToND = 0;
38233af1	94	}
	95	}
	96
55e05544	97	//____________________________________________________________________
55e05544	98	void
45e97e28	99	AlidNdEtaCorrection::Finish() {
55e05544	100	//
	101	// finish method
	102	//
45e97e28	103	// divide the histograms in the AliCorrectionMatrix2D objects to get the corrections
55e05544	104
45e97e28	105	fTrack2ParticleCorrection->Divide();
55e05544	106	fVertexRecoCorrection->Divide();
7584d357	107	fTriggerBiasCorrectionMBToINEL->Divide();
	108	fTriggerBiasCorrectionMBToNSD->Divide();
	109	fTriggerBiasCorrectionMBToND->Divide();
55e05544	110	}
	111
	112	//____________________________________________________________________
74fd10b3	113	Long64_t AlidNdEtaCorrection::Merge(TCollection* list)
74fd10b3	114	{
55e05544	115	// Merge a list of dNdEtaCorrection objects with this (needed for
7af955da	116	// PROOF).
55e05544	117	// Returns the number of merged objects (including this).
	118
	119	if (!list)
	120	return 0;
7af955da	121
55e05544	122	if (list->IsEmpty())
	123	return 1;
	124
	125	TIterator* iter = list->MakeIterator();
	126	TObject* obj;
	127
	128	// collections of measured and generated histograms
7584d357	129	TList* collectionNtrackToNparticle = new TList;
	130	TList* collectionVertexReco = new TList;
	131	TList* collectionTriggerBiasMBToINEL = new TList;
	132	TList* collectionTriggerBiasMBToNSD = new TList;
	133	TList* collectionTriggerBiasMBToND = new TList;
55e05544	134
	135	Int_t count = 0;
	136	while ((obj = iter->Next())) {
7af955da	137
55e05544	138	AlidNdEtaCorrection* entry = dynamic_cast<AlidNdEtaCorrection*> (obj);
7af955da	139	if (entry == 0)
55e05544	140	continue;
55e05544	141
74fd10b3	142	collectionNtrackToNparticle ->Add(entry->fTrack2ParticleCorrection);
	143	collectionVertexReco ->Add(entry->fVertexRecoCorrection);
	144	collectionTriggerBiasMBToINEL->Add(entry->fTriggerBiasCorrectionMBToINEL);
	145	collectionTriggerBiasMBToNSD ->Add(entry->fTriggerBiasCorrectionMBToNSD);
	146	collectionTriggerBiasMBToND ->Add(entry->fTriggerBiasCorrectionMBToND);
55e05544	147
	148	count++;
	149	}
7584d357	150	fTrack2ParticleCorrection ->Merge(collectionNtrackToNparticle);
	151	fVertexRecoCorrection ->Merge(collectionVertexReco);
	152	fTriggerBiasCorrectionMBToINEL ->Merge(collectionTriggerBiasMBToINEL);
	153	fTriggerBiasCorrectionMBToNSD ->Merge(collectionTriggerBiasMBToNSD);
	154	fTriggerBiasCorrectionMBToND ->Merge(collectionTriggerBiasMBToND);
10ebe68d	155
55e05544	156	delete collectionNtrackToNparticle;
55e05544	157	delete collectionVertexReco;
7584d357	158	delete collectionTriggerBiasMBToINEL;
	159	delete collectionTriggerBiasMBToNSD;
	160	delete collectionTriggerBiasMBToND;
10ebe68d	161
55e05544	162	return count+1;
	163	}
	164
2e88424e	165	//____________________________________________________________________
	166	void AlidNdEtaCorrection::Add(AlidNdEtaCorrection* aCorrectionsToAdd, Float_t c) {
	167	//
	168	// adds the measured and generated of aCorrectionsToAdd to measured and generated
	169	// of all corrections in this
	170
	171	fTrack2ParticleCorrection ->Add(aCorrectionsToAdd->GetTrack2ParticleCorrection() ,c);
	172	fVertexRecoCorrection ->Add(aCorrectionsToAdd->GetVertexRecoCorrection() ,c);
	173	fTriggerBiasCorrectionMBToINEL ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionINEL(),c);
	174	fTriggerBiasCorrectionMBToNSD ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionNSD() ,c);
	175	fTriggerBiasCorrectionMBToND ->Add(aCorrectionsToAdd->GetTriggerBiasCorrectionND() ,c);
	176
	177	}
	178
	179	//____________________________________________________________________
	180	void AlidNdEtaCorrection::Reset(void) {
	181	//
	182	// reset all corrections
	183	//
	184
	185	fTrack2ParticleCorrection ->Reset();
	186	fVertexRecoCorrection ->Reset();
	187	fTriggerBiasCorrectionMBToINEL ->Reset();
	188	fTriggerBiasCorrectionMBToNSD ->Reset();
	189	fTriggerBiasCorrectionMBToND ->Reset();
	190
	191	}
	192
	193
	194
55e05544	195	//____________________________________________________________________
74fd10b3	196	Bool_t AlidNdEtaCorrection::LoadHistograms(const Char_t* dir)
74fd10b3	197	{
55e05544	198	//
55e05544	199	// loads the histograms
74fd10b3	200	// if dir is empty a directory with the name of this object is taken (like in SaveHistogram)
55e05544	201	//
55e05544	202
74fd10b3	203	if (!dir)
74fd10b3	204	dir = GetName();
7584d357	205
74fd10b3	206	if (!gDirectory->cd(dir))
	207	return kFALSE;
	208
	209	fTrack2ParticleCorrection ->LoadHistograms();
	210	fVertexRecoCorrection ->LoadHistograms();
	211	fTriggerBiasCorrectionMBToINEL ->LoadHistograms();
	212	fTriggerBiasCorrectionMBToNSD ->LoadHistograms();
	213	fTriggerBiasCorrectionMBToND ->LoadHistograms();
	214
	215	gDirectory->cd("..");
1afae8ff	216
55e05544	217	return kTRUE;
	218	}
	219
55e05544	220	//____________________________________________________________________
74fd10b3	221	void AlidNdEtaCorrection::SaveHistograms()
74fd10b3	222	{
55e05544	223	//
	224	// save the histograms
	225	//
	226
	227	gDirectory->mkdir(fName.Data());
	228	gDirectory->cd(fName.Data());
	229
7584d357	230	fTrack2ParticleCorrection ->SaveHistograms();
	231	fVertexRecoCorrection ->SaveHistograms();
	232	fTriggerBiasCorrectionMBToINEL->SaveHistograms();
	233	fTriggerBiasCorrectionMBToNSD ->SaveHistograms();
	234	fTriggerBiasCorrectionMBToND ->SaveHistograms();
55e05544	235
74fd10b3	236	gDirectory->cd("..");
55e05544	237	}
	238
	239	//____________________________________________________________________
	240	void AlidNdEtaCorrection::DrawHistograms()
	241	{
	242	//
dd367a14	243	// call the draw histogram method of the corrections
74fd10b3	244	//
55e05544	245
7584d357	246	fTrack2ParticleCorrection ->DrawHistograms();
	247	fVertexRecoCorrection ->DrawHistograms();
	248	fTriggerBiasCorrectionMBToINEL->DrawHistograms();
	249	fTriggerBiasCorrectionMBToNSD ->DrawHistograms();
	250	fTriggerBiasCorrectionMBToND ->DrawHistograms();
7584d357	251	}
7584d357	252
dd367a14	253	//____________________________________________________________________
	254	void AlidNdEtaCorrection::DrawOverview(const char* canvasName)
	255	{
	256	//
	257	// call the DrawOverview histogram method of the corrections
	258	//
	259
	260	fTrack2ParticleCorrection ->DrawOverview(canvasName);
	261	fVertexRecoCorrection ->DrawOverview(canvasName);
	262	fTriggerBiasCorrectionMBToINEL->DrawOverview(canvasName);
	263	fTriggerBiasCorrectionMBToNSD ->DrawOverview(canvasName);
	264	fTriggerBiasCorrectionMBToND ->DrawOverview(canvasName);
	265	}
	266
7584d357	267	//____________________________________________________________________
74fd10b3	268	void AlidNdEtaCorrection::FillMCParticle(Float_t vtx, Float_t eta, Float_t pt, Bool_t trigger, Bool_t vertex, Int_t processType)
7584d357	269	{
74fd10b3	270	// fills a particle in the corrections
74fd10b3	271	// it is filled in generated or measured depending of the flags
7584d357	272
74fd10b3	273	fTriggerBiasCorrectionMBToINEL->GetTrackCorrection()->FillGene(vtx, eta, pt);
7584d357	274
6b62a9c7	275	if (processType != AliPWG0Helper::kSD )
74fd10b3	276	fTriggerBiasCorrectionMBToNSD->GetTrackCorrection()->FillGene(vtx, eta, pt);
74fd10b3	277
6b62a9c7	278	if (processType == AliPWG0Helper::kND )
74fd10b3	279	fTriggerBiasCorrectionMBToND->GetTrackCorrection()->FillGene(vtx, eta, pt);
	280
	281	if (!trigger)
	282	return;
	283
	284	fTriggerBiasCorrectionMBToINEL->GetTrackCorrection()->FillMeas(vtx, eta, pt);
	285	fTriggerBiasCorrectionMBToNSD->GetTrackCorrection()->FillMeas(vtx, eta, pt);
	286	fTriggerBiasCorrectionMBToND->GetTrackCorrection()->FillMeas(vtx, eta, pt);
	287	fVertexRecoCorrection->GetTrackCorrection()->FillGene(vtx, eta, pt);
	288
	289	if (!vertex)
	290	return;
	291
	292	fVertexRecoCorrection->GetTrackCorrection()->FillMeas(vtx, eta, pt);
	293	fTrack2ParticleCorrection->GetTrackCorrection()->FillGene(vtx, eta, pt);
7584d357	294	}
55e05544	295
7584d357	296	//____________________________________________________________________
74fd10b3	297	void AlidNdEtaCorrection::FillTrackedParticle(Float_t vtx, Float_t eta, Float_t pt)
7584d357	298	{
74fd10b3	299	// fills a tracked particle in the corrections
	300
	301	fTrack2ParticleCorrection->GetTrackCorrection()->FillMeas(vtx, eta, pt);
55e05544	302	}
847489f7	303
7584d357	304	//____________________________________________________________________
74fd10b3	305	void AlidNdEtaCorrection::FillEvent(Float_t vtx, Float_t n, Bool_t trigger, Bool_t vertex, Int_t processType)
7584d357	306	{
74fd10b3	307	// fills an event int he correction
	308	// it is filled in generated or measured depending of the flags
	309
	310	fTriggerBiasCorrectionMBToINEL->GetEventCorrection()->FillGene(vtx, n);
	311
6b62a9c7	312	if ( processType != AliPWG0Helper::kSD )
74fd10b3	313	fTriggerBiasCorrectionMBToNSD->GetEventCorrection()->FillGene(vtx, n);
7584d357	314
6b62a9c7	315	if (processType == AliPWG0Helper::kND )
74fd10b3	316	fTriggerBiasCorrectionMBToND->GetEventCorrection()->FillGene(vtx, n);
	317
	318	if (!trigger)
	319	return;
	320
	321	fTriggerBiasCorrectionMBToINEL->GetEventCorrection()->FillMeas(vtx, n);
	322	fTriggerBiasCorrectionMBToNSD->GetEventCorrection()->FillMeas(vtx, n);
	323	fTriggerBiasCorrectionMBToND->GetEventCorrection()->FillMeas(vtx, n);
	324	fVertexRecoCorrection->GetEventCorrection()->FillGene(vtx, n);
	325
	326	if (!vertex)
	327	return;
	328
	329	fVertexRecoCorrection->GetEventCorrection()->FillMeas(vtx, n);
	330	}
7584d357	331
847489f7	332	//____________________________________________________________________
c17301f3	333	Float_t AlidNdEtaCorrection::GetMeasuredFraction(CorrectionType correctionType, Float_t ptCutOff, Float_t eta, Int_t vertexBegin, Int_t vertexEnd, Bool_t debug)
847489f7	334	{
847489f7	335	// calculates the fraction of particles measured (some are missed due to the pt cut off)
74fd10b3	336	//
74fd10b3	337	// uses the generated particle histogram from the correction passed, e.g. pass GetTrack2ParticleCorrection()
847489f7	338
0448e811	339	if (!GetCorrection(correctionType))
	340	return -1;
	341
5a6310fe	342	const TH3* generated = GetCorrection(correctionType)->GetTrackCorrection()->GetGeneratedHistogram();
847489f7	343
	344	// find eta borders, if eta is negative assume -0.8 ... 0.8
	345	Int_t etaBegin = 0;
	346	Int_t etaEnd = 0;
72e597d7	347	if (eta < -99)
847489f7	348	{
	349	etaBegin = generated->GetYaxis()->FindBin(-0.8);
	350	etaEnd = generated->GetYaxis()->FindBin(0.8);
	351	}
	352	else
	353	{
	354	etaBegin = generated->GetYaxis()->FindBin(eta);
	355	etaEnd = etaBegin;
	356	}
	357
c17301f3	358	if (vertexBegin == -1)
	359	vertexBegin = generated->GetXaxis()->FindBin(-9.99);
	360
	361	if (vertexEnd == -1)
	362	vertexEnd = generated->GetXaxis()->FindBin(9.99);
847489f7	363
92d2d8ad	364	TH1D* ptProj = dynamic_cast<TH1D*> (generated->ProjectionZ(Form("%s_pt", generated->GetName()), vertexBegin, vertexEnd, etaBegin, etaEnd));
b4b9cacc	365	//printf("GetMeasuredFraction: bin range %d %d %d %d\n", vertexBegin, vertexEnd, etaBegin, etaEnd);
1afae8ff	366	ptProj->GetXaxis()->SetTitle(generated->GetZaxis()->GetTitle());
847489f7	367
847489f7	368	Int_t ptBin = ptProj->FindBin(ptCutOff);
b4b9cacc	369	//printf("GetMeasuredFraction: bin range %d %d\n", ptBin, ptProj->GetNbinsX());
7307d52c	370	Float_t abovePtCut = ptProj->Integral(ptBin, ptProj->GetNbinsX()+1);
7307d52c	371	Float_t all = ptProj->Integral(1, ptProj->GetNbinsX()+1);
847489f7	372
	373	if (all == 0)
	374	return -1;
	375
	376	Float_t fraction = abovePtCut / all;
	377
b4b9cacc	378	//printf("GetMeasuredFraction: all %f above %f fraction %f\n", all, abovePtCut, fraction);
74fd10b3	379
847489f7	380	if (debug)
	381	{
	382	new TCanvas;
	383	ptProj->Draw();
	384	}
92d2d8ad	385	else
92d2d8ad	386	delete ptProj;
847489f7	387
72e597d7	388	if (debug)
	389	printf("AlidNdEtaCorrection::GetMeasuredFraction: pt cut off = %f, eta = %f, => fraction = %f\n", ptCutOff, eta, fraction);
	390
847489f7	391	return fraction;
	392	}
	393
3dfa46a4	394	//____________________________________________________________________
	395	TH1* AlidNdEtaCorrection::GetMeasuredEventFraction(CorrectionType correctionType, Int_t multCut)
	396	{
	397	// calculates the fraction of events above multCut (but including it)
	398	//
	399	// uses the generated event histogram from the correction passed, e.g. pass GetTrack2ParticleCorrection()
	400
	401	if (!GetCorrection(correctionType))
	402	return 0;
	403
5a6310fe	404	const TH2* generated = GetCorrection(correctionType)->GetEventCorrection()->GetGeneratedHistogram();
3dfa46a4	405
	406	TH1* allEvents = generated->ProjectionX(Form("%s_all", generated->GetName()), 1, generated->GetNbinsY());
	407	TH1* aboveEvents = generated->ProjectionX(Form("%s_above", generated->GetName()), generated->GetYaxis()->FindBin(multCut), generated->GetNbinsY());
	408
	409	aboveEvents->Divide(aboveEvents, allEvents, 1, 1, "B");
	410
	411	return aboveEvents;
	412	}
	413
74fd10b3	414	//____________________________________________________________________
0ab29cfa	415	void AlidNdEtaCorrection::ReduceInformation()
	416	{
	417	// this function deletes the measured and generated histograms from the corrections to reduce the amount of data
	418	// in memory
	419
	420	// these are needed for GetMeasuredFraction(): fTrack2ParticleCorrection->ReduceInformation();
7584d357	421	fVertexRecoCorrection ->ReduceInformation();
	422	fTriggerBiasCorrectionMBToINEL ->ReduceInformation();
	423	fTriggerBiasCorrectionMBToNSD ->ReduceInformation();
	424	fTriggerBiasCorrectionMBToND ->ReduceInformation();
0ab29cfa	425	}
7af955da	426
0448e811	427	//____________________________________________________________________
	428	AliCorrection* AlidNdEtaCorrection::GetCorrection(CorrectionType correctionType)
	429	{
	430	// returns the given correction
	431
	432	switch (correctionType)
	433	{
	434	case kNone : return 0;
	435	case kTrack2Particle : return fTrack2ParticleCorrection;
	436	case kVertexReco : return fVertexRecoCorrection;
	437	case kINEL : return fTriggerBiasCorrectionMBToINEL;
	438	case kNSD : return fTriggerBiasCorrectionMBToNSD;
	439	case kND : return fTriggerBiasCorrectionMBToND;
	440	}
	441
	442	return 0;
	443	}