[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 <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)
  : TNamed(name, title),
  fTrack2ParticleCorrection(0),
  fVertexRecoCorrection(0),
  fTriggerBiasCorrectionMBToINEL(0),
  fTriggerBiasCorrectionMBToNSD(0),
  fTriggerBiasCorrectionMBToND(0)
{
  //
  // constructor
  //

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

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

//____________________________________________________________________
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 correction
  //

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

//____________________________________________________________________
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 != 92 && processType != 93)
    fTriggerBiasCorrectionMBToNSD->GetTrackCorrection()->FillGene(vtx, eta, pt);

  if (processType!=92 && processType!=93 && processType!=94)
    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 != 92 && processType != 93)
    fTriggerBiasCorrectionMBToNSD->GetEventCorrection()->FillGene(vtx, n);

  if (processType!=92 && processType!=93 && processType!=94)
    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, 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 TH3F* 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;
  }

  Int_t vertexBegin = generated->GetXaxis()->FindBin(-9.99);
  Int_t 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());
  Float_t all = ptProj->Integral();

  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;
}

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