[u/mrichter/AliRoot.git] / PWGDQ / dielectron / AliDielectronHFhelper.cxx

/*************************************************************************
* Copyright(c) 1998-2009, 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.                  *
**************************************************************************/

///////////////////////////////////////////////////////////////////////////
//       Dielectron Histogram framework helper                     //
//                                                                       //
/*


*/
//                                                                       //
///////////////////////////////////////////////////////////////////////////

#include <TObjArray.h>
#include <TKey.h>
#include <TList.h>
#include <TClass.h>
#include <TObject.h>
#include <TFile.h>
#include <TString.h>
#include <TObjString.h>
#include <TVectorD.h>
#include <TMath.h>
#include <TH1.h>

#include <AliLog.h>

#include "AliDielectron.h"
#include "AliDielectronHFhelper.h"
#include "AliDielectronHF.h"

//ClassImp(AliDielectronHFhelper)

//const char* AliDielectronHFhelper::fCutVars[AliDielectronHFhelper::kMaxCuts] = {"","","","","","","","","",""};

//________________________________________________________________
AliDielectronHFhelper::AliDielectronHFhelper(const char* filename) :
  TNamed(),
  fArrPairType(0x0),
  fCutVars(0x0),
  fCutLowLimits(0),
  fCutUpLimits(0)
{
  //
  // get HF container(s) from file 'filename'
  //
  SetHFArray(filename);
  
}

//________________________________________________________________
AliDielectronHFhelper::~AliDielectronHFhelper()
{
  //
  // dtor
  //
  if(fArrPairType) delete fArrPairType;
  if(fCutVars)     delete fCutVars;
  
}

//________________________________________________________________
void AliDielectronHFhelper::SetHFArray(const char* filename)
{
  //
  // get HF containers from file
  //

  TFile *f = TFile::Open(filename);

  TList *l=f->GetListOfKeys();
  TIter nextKey(l);
  TKey *k=0x0;
  while ( (k=static_cast<TKey*>(nextKey())) ){
  
    TObject *o=k->ReadObj();
    if (o->IsA()==TList::Class()){
      
      TList *tlist=(TList*)o;
 
      TIter next(tlist);
      TObject *obj=0x0;
      while ((obj = next())) {
	TString objname(obj->GetName());

	if( objname.Contains("_HF") && obj->IsA()==TObjArray::Class()) {
	  fArrPairType = new TObjArray( *(dynamic_cast<TObjArray*>(obj)) );
	  //fArrPairType->Print();
	  return;
	}
      }
    }
  }

}
//________________________________________________________________
void AliDielectronHFhelper::SetRangeUser(const char *varname, Double_t min, Double_t max, Bool_t leg)
{
  //
  // Set range from variable name
  //
  //  Int_t size=sizeof(fCutVars)/sizeof(const char*);
  Int_t size=fCutLowLimits.GetNrows();

  if(size>=kMaxCuts) return;

  // arrays
  if(!fCutVars) {
    fCutVars = new TObjArray();
    fCutVars->SetOwner();
  }
  fCutLowLimits.ResizeTo(size+1);
  fCutUpLimits.ResizeTo(size+1);

  // fill
  //  fCutVars[size]=Form("%s%s",(leg?"Leg":""),varname);
  TObjString *str = new TObjString(Form("%s%s",(leg?"Leg":""),varname));
  fCutVars->Add(str);
  fCutLowLimits(size) = min;
  fCutUpLimits(size)  = max;
  AliWarning(Form(" %s [%.2f,%.2f]",fCutVars->At(size)->GetName(),fCutLowLimits(size),fCutUpLimits(size)));
}

//________________________________________________________________
void AliDielectronHFhelper::SetRangeUser(AliDielectronVarManager::ValueTypes type, Double_t min, Double_t max, Bool_t leg)
{
  //
  // Set range from AliDielectronVarManager 
  //
  SetRangeUser(AliDielectronVarManager::GetValueName(type), min, max, leg);
}

//________________________________________________________________
TObjArray* AliDielectronHFhelper::CollectHistos() 
{
  //
  // collect histograms for all kind of pair types or sources
  //
  
  TObjArray *collection = new TObjArray(AliDielectron::kEv1PMRot+1);

  // loop over max. available pair types
  for(Int_t i=0; i<AliDielectron::kEv1PMRot+1; i++) {

    collection->AddAt(GetHistogram(AliDielectron::PairClassName(i)),i);
    
  }

  return collection;
}

//________________________________________________________________
TH1F* AliDielectronHFhelper::GetHistogram(const char *step)
{
  //
  // main function to recive a single histogram
  //
  
  TObjArray *histos = (TObjArray*) fArrPairType->FindObject(step);
  AliInfo(Form(" Step %s selected",step));
  if(!histos) return 0x0;

  TH1F *hist = FindHistograms(histos);
  return hist;
}

//________________________________________________________________
TH1F* AliDielectronHFhelper::FindHistograms(TObjArray *histos)
{
  //
  // exclude histograms
  //
  
  // debug
  // TString title    = histos->At(0)->GetTitle();
  // TObjArray* vars  = title.Tokenize(":");
  // AliDebug(1,Form(" number of cuts/vars: %d/%d",fCutLowLimits.GetNrows(),vars->GetEntriesFast()));  
  
  // check for missing cuts
  CheckCuts(histos);
  
  // loop over all cuts
  for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++) {

    Bool_t bFndBin = kFALSE; // exact bin found
    const char *cutvar   = fCutVars->At(icut)->GetName();
    Double_t min   = fCutLowLimits(icut);
    Double_t max   = fCutUpLimits(icut);
    AliDebug(1,Form(" Cut %d: %s [%.2f,%.2f]",icut,cutvar,min,max));

    // loop over all histograms
    for(Int_t i=0; i<histos->GetEntriesFast(); i++) {

      // continue if already empty
      if(!histos->At(i)) continue;

      // collect binning from histo title
      TString title    = histos->At(i)->GetTitle();
      if(title.IsNull()) continue;
      AliDebug(1,Form(" histo title: %s",title.Data()));

      TObjArray *vars  = title.Tokenize(":");
      for(Int_t ivar=0; ivar<vars->GetEntriesFast(); ivar++) {
	TString binvar = vars->At(ivar)->GetName();
	AliDebug(1,Form(" Check ivar %d binvar %s",ivar,binvar.Data()));
	
	// check for cuts and ranges by the user
	if(binvar.Contains(cutvar)) {
	  TObjArray *limits = binvar.Tokenize("#");
	  
	  Double_t binmin = atof(limits->At(1)->GetName());
	  Double_t binmax = atof(limits->At(2)->GetName());
	  AliDebug(1,Form(" bin %s var %s [%.2f,%.2f]",binvar.Data(),limits->At(0)->GetName(),binmin,binmax));
	  
	  // remove histogram from array
	  if(binmin < min || binmax < min || binmin > max || binmax > max ) {
	    AliDebug(1,Form(" removed, out of range min %.2f,%.2f  max %.2f,%.2f",binmin,min,binmax,max));
	    histos->AddAt(0x0,i);
	  }
	  if(bFndBin && !(binmin == min && binmax == max)) {
	      histos->AddAt(0x0,i);
	      AliDebug(1,Form(" removed, within range min %.2f,%.2f  max %.2f,%.2f",binmin,min,binmax,max));
	    }
	  // clean up
	  if(limits) delete limits;

	  // do we have found an exact bin
	  if(binmin==min && binmax==max) bFndBin=kTRUE;

	}

      }
      // clean up
      if(vars)   delete vars;
      
    }
    
  }
  
  // compress the array by removing all empty histos
  histos->Compress();  
  AliDebug(1,Form(" Compression: %d histograms left",histos->GetEntriesFast()));

  // merge histograms
  TH1F* hist = MergeHistos(histos);
  return hist;
}

//________________________________________________________________
TH1F* AliDielectronHFhelper::MergeHistos(TObjArray *arr)
{
  //
  // merge histos to one single histogram
  //
  
  if(arr->GetEntriesFast()<1) { AliError("[E] No more histosgrams left!"); return 0x0; }

  TH1F *final=(TH1F*) arr->At(0)->Clone();  
  if(!final) return 0x0;
  
  final->Reset("CE");
  final->SetTitle(""); //TODO: change in future
  for(Int_t i=0; i<arr->GetEntriesFast(); i++) {
    final->Add((TH1F*)arr->At(i));
  }
  arr->Clear();

  return final;
}

//________________________________________________________________
void AliDielectronHFhelper::CheckCuts(TObjArray *arr)
{
  //
  // Compare histo binning and cut variables. Add necessary cuts (largest limit)
  //


  // build array with bin variable, minimum and maximum bin values
  TString titleFIRST       = arr->First()->GetTitle();
  TString titleLAST        = arr->Last()->GetTitle();
  TObjArray* binvarsF  = titleFIRST.Tokenize(":#");
  TObjArray* binvarsL  = titleLAST.Tokenize(":#");
  Double_t binmin[kMaxCuts]= {0.0};
  Double_t binmax[kMaxCuts]= {0.0};
  for(Int_t ivar=0; ivar<binvarsF->GetEntriesFast(); ivar++) {

    TString elementF=binvarsF->At(ivar)->GetName();
    TString elementL=binvarsL->At(ivar)->GetName();
    AliDebug(1,Form(" binvar %d: %s,%s",ivar,elementF.Data(),elementL.Data()));
    
    switch(ivar%3) {
    case 0: continue; break;
    case 1: binmin[(int)ivar/3]=atof(elementF.Data()); break;
    case 2: binmax[(int)ivar/3]=atof(elementL.Data()); break;
    }
    
    binvarsF->AddAt(0x0,ivar);
  }
  binvarsF->Compress();
  
  // loop over all vars and cuts, check for missing stuff
  for(Int_t ivar=0; ivar<binvarsF->GetEntriesFast(); ivar++) {
    
    TString binvar=binvarsF->At(ivar)->GetName();
    Bool_t selected=kFALSE;

    AliDebug(1,Form(" check cuts %d %s [%.2f,%.2f]",ivar,binvar.Data(),binmin[ivar],binmax[ivar]));
    // loop over all cuts and check for missing stuff
    for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++) {
      if(binvar.Contains(fCutVars->At(icut)->GetName())) { selected=kTRUE; break; }
      //      else break;
    }
    
    // add missing cut with max limits
    if(!selected) {
      AliWarning("Not all bin variables covered. Add additional cut!");
      SetRangeUser(binvar.Data(),binmin[ivar],binmax[ivar]);
    }
    
  }
  
  // clean up 
  if(binvarsF) delete binvarsF;
  if(binvarsL) delete binvarsL;
}

//________________________________________________________________
void AliDielectronHFhelper::Print(const Option_t* /*option*/) const
{

  //
  // Print out object contents
  //

  // pairtypes, steps and sources
  AliInfo(Form(" Number of steps: \t %d",fArrPairType->GetEntriesFast()));
  for(Int_t i=0; i<fArrPairType->GetEntriesFast(); i++) {
    AliInfo(Form(" Step %d:",0));
  }

}

//________________________________________________________________
void AliDielectronHFhelper::PrintCuts()
{

  //
  // Print out object contents
  //

  // loop over all cuts
  AliInfo(" Selected cuts:");
  for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++)
    AliInfo(Form(" %d: %s [%.2f,%.2f]",icut,fCutVars->At(icut)->GetName(),fCutLowLimits(icut),fCutUpLimits(icut)));
  
}
Commit	Line	Data
5e2cf960	1	/*************************************************************************
	2	* Copyright(c) 1998-2009, 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
	16	///////////////////////////////////////////////////////////////////////////
	17	// Dielectron Histogram framework helper //
	18	// //
	19	/*
	20
	21
	22
	23
	24
	25
	26
	27
	28
	29	*/
	30	// //
	31	///////////////////////////////////////////////////////////////////////////
	32
	33	#include <TObjArray.h>
	34	#include <TKey.h>
	35	#include <TList.h>
	36	#include <TClass.h>
	37	#include <TObject.h>
	38	#include <TFile.h>
	39	#include <TString.h>
	40	#include <TObjString.h>
	41	#include <TVectorD.h>
	42	#include <TMath.h>
	43	#include <TH1.h>
	44
	45	#include <AliLog.h>
	46
443a091c	47	#include "AliDielectron.h"
5e2cf960	48	#include "AliDielectronHFhelper.h"
	49	#include "AliDielectronHF.h"
	50
	51	//ClassImp(AliDielectronHFhelper)
	52
	53	//const char* AliDielectronHFhelper::fCutVars[AliDielectronHFhelper::kMaxCuts] = {"","","","","","","","","",""};
	54
	55	//________________________________________________________________
	56	AliDielectronHFhelper::AliDielectronHFhelper(const char* filename) :
	57	TNamed(),
	58	fArrPairType(0x0),
	59	fCutVars(0x0),
	60	fCutLowLimits(0),
	61	fCutUpLimits(0)
	62	{
	63	//
	64	// get HF container(s) from file 'filename'
	65	//
	66	SetHFArray(filename);
	67
	68	}
	69
	70	//________________________________________________________________
	71	AliDielectronHFhelper::~AliDielectronHFhelper()
	72	{
	73	//
	74	// dtor
	75	//
	76	if(fArrPairType) delete fArrPairType;
	77	if(fCutVars) delete fCutVars;
	78
	79	}
	80
	81	//________________________________________________________________
	82	void AliDielectronHFhelper::SetHFArray(const char* filename)
	83	{
	84	//
	85	// get HF containers from file
	86	//
	87
	88	TFile *f = TFile::Open(filename);
	89
	90	TList *l=f->GetListOfKeys();
	91	TIter nextKey(l);
	92	TKey *k=0x0;
	93	while ( (k=static_cast<TKey*>(nextKey())) ){
	94
	95	TObject *o=k->ReadObj();
	96	if (o->IsA()==TList::Class()){
	97
	98	TList tlist=(TList)o;
	99
	100	TIter next(tlist);
	101	TObject *obj=0x0;
	102	while ((obj = next())) {
	103	TString objname(obj->GetName());
	104
	105	if( objname.Contains("_HF") && obj->IsA()==TObjArray::Class()) {
	106	fArrPairType = new TObjArray( (dynamic_cast<TObjArray>(obj)) );
	107	//fArrPairType->Print();
	108	return;
	109	}
	110	}
	111	}
112	}
113
114	}
115	//________________________________________________________________
116	void AliDielectronHFhelper::SetRangeUser(const char *varname, Double_t min, Double_t max, Bool_t leg)
117	{
118	//
119	// Set range from variable name
120	//
121	// Int_t size=sizeof(fCutVars)/sizeof(const char*);
122	Int_t size=fCutLowLimits.GetNrows();
123
124	if(size>=kMaxCuts) return;
125
126	// arrays
127	if(!fCutVars) {
128	fCutVars = new TObjArray();
129	fCutVars->SetOwner();
130	}
131	fCutLowLimits.ResizeTo(size+1);
132	fCutUpLimits.ResizeTo(size+1);
133
134	// fill
135	// fCutVars[size]=Form("%s%s",(leg?"Leg":""),varname);
136	TObjString *str = new TObjString(Form("%s%s",(leg?"Leg":""),varname));
137	fCutVars->Add(str);
138	fCutLowLimits(size) = min;
139	fCutUpLimits(size) = max;
140	AliWarning(Form(" %s [%.2f,%.2f]",fCutVars->At(size)->GetName(),fCutLowLimits(size),fCutUpLimits(size)));
141	}
142
143	//________________________________________________________________
144	void AliDielectronHFhelper::SetRangeUser(AliDielectronVarManager::ValueTypes type, Double_t min, Double_t max, Bool_t leg)
145	{
146	//
147	// Set range from AliDielectronVarManager
148	//
149	SetRangeUser(AliDielectronVarManager::GetValueName(type), min, max, leg);
150	}
151
443a091c	152	//________________________________________________________________
	153	TObjArray* AliDielectronHFhelper::CollectHistos()
	154	{
	155	//
	156	// collect histograms for all kind of pair types or sources
	157	//
	158
	159	TObjArray *collection = new TObjArray(AliDielectron::kEv1PMRot+1);
	160
	161	// loop over max. available pair types
	162	for(Int_t i=0; i<AliDielectron::kEv1PMRot+1; i++) {
	163
	164	collection->AddAt(GetHistogram(AliDielectron::PairClassName(i)),i);
	165
	166	}
	167
	168	return collection;
	169	}
	170
5e2cf960	171	//________________________________________________________________
	172	TH1F* AliDielectronHFhelper::GetHistogram(const char *step)
	173	{
	174	//
	175	// main function to recive a single histogram
	176	//
	177
	178	TObjArray histos = (TObjArray) fArrPairType->FindObject(step);
	179	AliInfo(Form(" Step %s selected",step));
	180	if(!histos) return 0x0;
	181
	182	TH1F *hist = FindHistograms(histos);
	183	return hist;
	184	}
	185
	186	//________________________________________________________________
	187	TH1F* AliDielectronHFhelper::FindHistograms(TObjArray *histos)
	188	{
	189	//
	190	// exclude histograms
	191	//
	192
	193	// debug
	194	// TString title = histos->At(0)->GetTitle();
	195	// TObjArray* vars = title.Tokenize(":");
	196	// AliDebug(1,Form(" number of cuts/vars: %d/%d",fCutLowLimits.GetNrows(),vars->GetEntriesFast()));
	197
	198	// check for missing cuts
	199	CheckCuts(histos);
	200
	201	// loop over all cuts
	202	for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++) {
	203
	204	Bool_t bFndBin = kFALSE; // exact bin found
	205	const char *cutvar = fCutVars->At(icut)->GetName();
	206	Double_t min = fCutLowLimits(icut);
	207	Double_t max = fCutUpLimits(icut);
	208	AliDebug(1,Form(" Cut %d: %s [%.2f,%.2f]",icut,cutvar,min,max));
	209
	210	// loop over all histograms
	211	for(Int_t i=0; i<histos->GetEntriesFast(); i++) {
	212
	213	// continue if already empty
	214	if(!histos->At(i)) continue;
	215
	216	// collect binning from histo title
	217	TString title = histos->At(i)->GetTitle();
	218	if(title.IsNull()) continue;
	219	AliDebug(1,Form(" histo title: %s",title.Data()));
	220
	221	TObjArray *vars = title.Tokenize(":");
	222	for(Int_t ivar=0; ivar<vars->GetEntriesFast(); ivar++) {
	223	TString binvar = vars->At(ivar)->GetName();
	224	AliDebug(1,Form(" Check ivar %d binvar %s",ivar,binvar.Data()));
	225
	226	// check for cuts and ranges by the user
	227	if(binvar.Contains(cutvar)) {
	228	TObjArray *limits = binvar.Tokenize("#");
	229
	230	Double_t binmin = atof(limits->At(1)->GetName());
	231	Double_t binmax = atof(limits->At(2)->GetName());
	232	AliDebug(1,Form(" bin %s var %s [%.2f,%.2f]",binvar.Data(),limits->At(0)->GetName(),binmin,binmax));
	233
	234	// remove histogram from array
235	if(binmin < min \|\| binmax < min \|\| binmin > max \|\| binmax > max ) {
236	AliDebug(1,Form(" removed, out of range min %.2f,%.2f max %.2f,%.2f",binmin,min,binmax,max));
237	histos->AddAt(0x0,i);
238	}
239	if(bFndBin && !(binmin == min && binmax == max)) {
240	histos->AddAt(0x0,i);
241	AliDebug(1,Form(" removed, within range min %.2f,%.2f max %.2f,%.2f",binmin,min,binmax,max));
242	}
243	// clean up
244	if(limits) delete limits;
245
246	// do we have found an exact bin
247	if(binmin==min && binmax==max) bFndBin=kTRUE;
248
249	}
250
251	}
252	// clean up
253	if(vars) delete vars;
254
255	}
256
257	}
258
259	// compress the array by removing all empty histos
260	histos->Compress();
261	AliDebug(1,Form(" Compression: %d histograms left",histos->GetEntriesFast()));
262
263	// merge histograms
264	TH1F* hist = MergeHistos(histos);
265	return hist;
266	}
267
268	//________________________________________________________________
269	TH1F* AliDielectronHFhelper::MergeHistos(TObjArray *arr)
270	{
271	//
272	// merge histos to one single histogram
273	//
274
275	if(arr->GetEntriesFast()<1) { AliError("[E] No more histosgrams left!"); return 0x0; }
276
277	TH1F final=(TH1F) arr->At(0)->Clone();
278	if(!final) return 0x0;
279
280	final->Reset("CE");
281	final->SetTitle(""); //TODO: change in future
282	for(Int_t i=0; i<arr->GetEntriesFast(); i++) {
283	final->Add((TH1F*)arr->At(i));
284	}
285	arr->Clear();
286
287	return final;
288	}
289
290	//________________________________________________________________
291	void AliDielectronHFhelper::CheckCuts(TObjArray *arr)
292	{
293	//
294	// Compare histo binning and cut variables. Add necessary cuts (largest limit)
295	//
296
297
298	// build array with bin variable, minimum and maximum bin values
299	TString titleFIRST = arr->First()->GetTitle();
300	TString titleLAST = arr->Last()->GetTitle();
301	TObjArray* binvarsF = titleFIRST.Tokenize(":#");
302	TObjArray* binvarsL = titleLAST.Tokenize(":#");
303	Double_t binmin[kMaxCuts]= {0.0};
304	Double_t binmax[kMaxCuts]= {0.0};
305	for(Int_t ivar=0; ivar<binvarsF->GetEntriesFast(); ivar++) {
306
307	TString elementF=binvarsF->At(ivar)->GetName();
308	TString elementL=binvarsL->At(ivar)->GetName();
309	AliDebug(1,Form(" binvar %d: %s,%s",ivar,elementF.Data(),elementL.Data()));
310
311	switch(ivar%3) {
312	case 0: continue; break;
313	case 1: binmin[(int)ivar/3]=atof(elementF.Data()); break;
314	case 2: binmax[(int)ivar/3]=atof(elementL.Data()); break;
315	}
316
317	binvarsF->AddAt(0x0,ivar);
318	}
319	binvarsF->Compress();
320
321	// loop over all vars and cuts, check for missing stuff
322	for(Int_t ivar=0; ivar<binvarsF->GetEntriesFast(); ivar++) {
323
324	TString binvar=binvarsF->At(ivar)->GetName();
325	Bool_t selected=kFALSE;
326
327	AliDebug(1,Form(" check cuts %d %s [%.2f,%.2f]",ivar,binvar.Data(),binmin[ivar],binmax[ivar]));
328	// loop over all cuts and check for missing stuff
329	for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++) {
330	if(binvar.Contains(fCutVars->At(icut)->GetName())) { selected=kTRUE; break; }
331	// else break;
332	}
333
334	// add missing cut with max limits
335	if(!selected) {
336	AliWarning("Not all bin variables covered. Add additional cut!");
337	SetRangeUser(binvar.Data(),binmin[ivar],binmax[ivar]);
338	}
339
340	}
341
342	// clean up
343	if(binvarsF) delete binvarsF;
344	if(binvarsL) delete binvarsL;
345	}
346
347	//________________________________________________________________
443a091c	348	void AliDielectronHFhelper::Print(const Option_t* /option/) const
5e2cf960	349	{
	350
	351	//
	352	// Print out object contents
	353	//
	354
	355	// pairtypes, steps and sources
	356	AliInfo(Form(" Number of steps: \t %d",fArrPairType->GetEntriesFast()));
	357	for(Int_t i=0; i<fArrPairType->GetEntriesFast(); i++) {
	358	AliInfo(Form(" Step %d:",0));
	359	}
	360
	361	}
	362
	363	//________________________________________________________________
	364	void AliDielectronHFhelper::PrintCuts()
	365	{
	366
	367	//
	368	// Print out object contents
	369	//
	370
	371	// loop over all cuts
	372	AliInfo(" Selected cuts:");
	373	for(Int_t icut=0; icut<fCutLowLimits.GetNrows(); icut++)
	374	AliInfo(Form(" %d: %s [%.2f,%.2f]",icut,fCutVars->At(icut)->GetName(),fCutLowLimits(icut),fCutUpLimits(icut)));
	375
	376	}
	377