[u/mrichter/AliRoot.git] / T0 / AliT0CalibTimeEq.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.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
// class for T0 calibration                       TM-AC-AM_6-02-2006  
// equalize time shift for each time CFD channel
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include "AliT0CalibTimeEq.h"
#include "AliLog.h"
#include <TFile.h>
#include <TMath.h>
#include <TF1.h>
#include <TSpectrum.h>
#include <TProfile.h>
#include <iostream>

ClassImp(AliT0CalibTimeEq)

//________________________________________________________________
  AliT0CalibTimeEq::AliT0CalibTimeEq():TNamed(),
				       fMeanVertex(0),        
				       fRmsVertex(0)      
{
  //

}

//________________________________________________________________
AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed(),
				       fMeanVertex(0),        
				       fRmsVertex(0)      
{
  //constructor

  TString namst = "Calib_";
  namst += name;
  SetName(namst.Data());
  SetTitle(namst.Data());
}

//________________________________________________________________
AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda),		
				       fMeanVertex(0),        
				       fRmsVertex(0)      
{
// copy constructor
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());


}

//________________________________________________________________
AliT0CalibTimeEq &AliT0CalibTimeEq::operator =(const AliT0CalibTimeEq& calibda)
{
// assignment operator
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());
 
  return *this;
}

//________________________________________________________________
AliT0CalibTimeEq::~AliT0CalibTimeEq()
{
  //
  // destrictor
}
//________________________________________________________________
void AliT0CalibTimeEq::Reset()
{
  //reset values

  memset(fCFDvalue,0,120*sizeof(Float_t));
  memset(fTimeEq,1,24*sizeof(Float_t));
}


//________________________________________________________________
void  AliT0CalibTimeEq::Print(Option_t*) const
{
  // print time values

  printf("\n	----	PM Arrays	----\n\n");
  printf(" Time delay CFD \n");
  for (Int_t i=0; i<24; i++) printf(" CFD  %f ",fTimeEq[i]);
  printf("\n Mean Vertex %f \n", fMeanVertex);
} 


//________________________________________________________________
Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
{
  // compute online equalized time
  Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
  meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
  Double_t rmsver=0;
  Int_t nent=0;
  Bool_t ok=false;
  gFile = TFile::Open(filePhys);
  if(!gFile) {
    AliError("No input PHYS data found ");
  }
  else
    {
      ok=true;
      for (Int_t i=0; i<24; i++)
	{

	  meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
	  TH1F *cfd = (TH1F*) gFile->Get(Form("CFD1minCFD%d",i+1));
	  TH1F *cfdtime = (TH1F*) gFile->Get(Form("CFD%d",i+1));
	  if(!cfd) {
	    AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
	  }
	  if(!cfdtime) {
	    AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
	  }
	  if(cfd) {
	    nent = Int_t(cfd->GetEntries());
	    if(nent>50)  { 
	      if(cfd->GetRMS()>1.5 )
		GetMeanAndSigma(cfd, meandiff, sigmadiff);
	      if(cfd->GetRMS()<=1.5) 
		{
		  meandiff = cfd->GetMean();
		  sigmadiff=cfd->GetRMS();
		}
	      Int_t   maxBin = cfd->GetMaximumBin(); 
	      Double_t  meanEstimate = cfd->GetBinCenter( maxBin); 
	      if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate; 
	    }
	    else 
	      {
		//	ok=false;
		AliWarning(Form(" Not  enouph data in PMT %i- PMT1:  %i ", i, nent));
	      }
	  }
	  if(cfdtime) {
	    nent = Int_t(cfdtime->GetEntries());
	    if(nent > 50 )  { //!!!!!!!!!!
	      if(cfdtime->GetRMS()>1.5 )
		GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	      if(cfdtime->GetRMS()<=1.5) 
		{
		  meancfdtime = cfdtime->GetMean();
		  sigmacfdtime = cfdtime->GetRMS();
		}
	      Int_t   maxBin = cfdtime->GetMaximumBin(); 
	      Double_t  meanEstimate = cfdtime->GetBinCenter( maxBin); 
	      if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate; 
	    }
	    else 
	      {
		//	ok=false;
		AliWarning(Form(" Not  enouph data in PMT in CFD peak %i - %i ", i, nent));
	      }
	  }
	  SetTimeEq(i,meandiff);
	  SetTimeEqRms(i,sigmadiff);
	  SetCFDvalue(i,0,meancfdtime);
	  if (cfd) delete cfd;
	  if (cfdtime) delete cfdtime;
	  
	}
      TH1F *ver = (TH1F*) gFile->Get("hVertex");
      if(ver) {
	meanver = ver->GetMean();
	rmsver = ver->GetRMS();
      }
      SetMeanVertex(meanver);
      SetRmsVertex(rmsver);
      
      gFile->Close();
      delete gFile;
      
    }
    return ok; 
}

//________________________________________________________________
  Bool_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t *timecdb, Float_t *cfdvalue, Int_t badpmt)
{
  // compute offline equalized time
  Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
  meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
  Int_t nent=0;
  Bool_t ok=false;
  TH1F *cfddiff = NULL; 
  TH1F *cfdtime = NULL;
  TObjArray * TzeroObj = NULL;

  gFile = TFile::Open(filePhys);
  if(!gFile) {
    AliError("No input PHYS data found ");
    return ok;
  }
  else
    {
      meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
      ok=true;
      TDirectory *dr = (TDirectory*) gFile->Get("T0Calib");
      if (dr)   TzeroObj = (TObjArray*) dr->Get("T0Calib");
      
      for (Int_t i=0; i<24; i++)
	{
	  if (i != badpmt) {
	    if(TzeroObj) {
	      cfddiff = (TH1F*)TzeroObj->FindObject(Form("CFD1minCFD%d",i+1));
	      cfdtime = (TH1F*)TzeroObj->FindObject(Form("CFD%d",i+1));
	    }
	    else
	      {
		cfddiff = (TH1F*)gFile->Get(Form("CFD1minCFD%d",i+1));
		cfdtime = (TH1F*)gFile->Get(Form("CFD%d",i+1));
		
	      }
	    if(!cfddiff ) {
	      AliWarning(Form("no  histograms collected by pass0 for diff channel %i", i));
	      SetTimeEq(i,timecdb[i]);
	      SetTimeEqRms(i,0);
	    }
	    if(cfddiff) {
	      nent = Int_t(cfddiff->GetEntries());
	      if(nent>500 )  { //!!!!!
		if(cfddiff->GetRMS()>1.5 )
		  GetMeanAndSigma(cfddiff, meandiff, sigmadiff);
		if(cfddiff->GetRMS()<=1.5) 
		  {
		    meandiff = cfddiff->GetMean();
		    sigmadiff = cfddiff->GetRMS();
		  }
		Int_t   maxBin = cfddiff->GetMaximumBin(); 
		Double_t  meanEstimate = cfddiff->GetBinCenter( maxBin); 
		if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate; 	      
	      }
	      else 
		{
		  AliWarning(Form(" Not  enouph data in PMT %i- PMT1:  %i ", i, nent));
		  SetTimeEq(i,timecdb[i]);
		  SetTimeEqRms(i,0);
		  
		}
	    }	    
	    
	    if(!cfdtime ) {
	      AliWarning(Form("no  histograms collected by pass0 for time channel %i", i));
	      SetTimeEq(i, cfdvalue[i]);
	      SetTimeEqRms(i, 0);
	    }
	    if(cfdtime) {
	      nent = Int_t(cfdtime->GetEntries());
	      if(nent>500 )  { //!!!!!
		if(cfdtime->GetRMS()>1.5 )
		  GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
		if(cfdtime->GetRMS()<=1.5) 
		  {
		    meancfdtime = cfdtime->GetMean();
		    sigmacfdtime=cfdtime->GetRMS();
		}
		Int_t   maxBin = cfdtime->GetMaximumBin(); 
		Double_t  meanEstimate = cfdtime->GetBinCenter( maxBin); 
		if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate; 
	    }
	    else 
	      {
		AliWarning(Form(" Not  enouph data in PMT in CFD peak %i - %i ", i, nent));
		SetTimeEq(i, cfdvalue[i]);
		SetTimeEqRms(i, 0);
	      }
	  }
	  
	  SetTimeEq(i,meandiff);
	  SetTimeEqRms(i,sigmadiff);
	  SetCFDvalue(i,0, meancfdtime );
	  if (cfddiff) cfddiff->Reset();
	  if (cfdtime) cfdtime->Reset();
	  } //bad pmt
	}
      
      gFile->Close();
      delete gFile;

    }
    return ok; 
   }

//________________________________________________________________________
void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist,  Float_t &mean, Float_t &sigma) {
  
  const double window = 2.;  //fit window 
  
  double meanEstimate, sigmaEstimate; 
  int maxBin;
  maxBin        =  hist->GetMaximumBin(); //position of maximum
  meanEstimate  =  hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
  // sigmaEstimate = hist->GetRMS();
  sigmaEstimate = 10;
  TF1* fit= new TF1("fit","gaus", meanEstimate - window*sigmaEstimate, meanEstimate + window*sigmaEstimate);
  fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
  hist->Fit("fit","RQ","Q");

  mean  = (Float_t) fit->GetParameter(1);
  sigma = (Float_t) fit->GetParameter(2);

  delete fit;
}
Commit	Line	Data
18086258	1
a2ad8166	2	/**************************************************************************
	3	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* *
	5	* Author: The ALICE Off-line Project. *
	6	* Contributors are mentioned in the code where appropriate. *
	7	* *
	8	* Permission to use, copy, modify and distribute this software and its *
	9	* documentation strictly for non-commercial purposes is hereby granted *
	10	* without fee, provided that the above copyright notice appears in all *
	11	* copies and that both the copyright notice and this permission notice *
	12	* appear in the supporting documentation. The authors make no claims *
	13	* about the suitability of this software for any purpose. It is *
	14	* provided "as is" without express or implied warranty. *
	15	**************************************************************************/
	16
	17	/* $Id$ */
	18
	19	///////////////////////////////////////////////////////////////////////////////
	20	// //
59b8a5fc	21	// class for T0 calibration TM-AC-AM_6-02-2006
59b8a5fc	22	// equalize time shift for each time CFD channel
a2ad8166	23	// //
	24	///////////////////////////////////////////////////////////////////////////////
	25
	26	#include "AliT0CalibTimeEq.h"
e47b556f	27	#include "AliLog.h"
a2ad8166	28	#include <TFile.h>
	29	#include <TMath.h>
	30	#include <TF1.h>
a2ad8166	31	#include <TSpectrum.h>
a2ad8166	32	#include <TProfile.h>
c61a7285	33	#include <iostream>
a2ad8166	34
	35	ClassImp(AliT0CalibTimeEq)
	36
	37	//________________________________________________________________
eef60a6a	38	AliT0CalibTimeEq::AliT0CalibTimeEq():TNamed(),
	39	fMeanVertex(0),
	40	fRmsVertex(0)
a2ad8166	41	{
a2ad8166	42	//
b95e8d87	43
a2ad8166	44	}
	45
	46	//________________________________________________________________
eef60a6a	47	AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed(),
	48	fMeanVertex(0),
	49	fRmsVertex(0)
a2ad8166	50	{
59b8a5fc	51	//constructor
59b8a5fc	52
a2ad8166	53	TString namst = "Calib_";
	54	namst += name;
	55	SetName(namst.Data());
	56	SetTitle(namst.Data());
	57	}
	58
	59	//________________________________________________________________
eef60a6a	60	AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda),
	61	fMeanVertex(0),
	62	fRmsVertex(0)
a2ad8166	63	{
	64	// copy constructor
	65	SetName(calibda.GetName());
	66	SetTitle(calibda.GetName());
	67
	68
	69	}
	70
	71	//________________________________________________________________
	72	AliT0CalibTimeEq &AliT0CalibTimeEq::operator =(const AliT0CalibTimeEq& calibda)
	73	{
	74	// assignment operator
	75	SetName(calibda.GetName());
	76	SetTitle(calibda.GetName());
	77
	78	return *this;
	79	}
	80
	81	//________________________________________________________________
	82	AliT0CalibTimeEq::~AliT0CalibTimeEq()
	83	{
	84	//
59b8a5fc	85	// destrictor
a2ad8166	86	}
	87	//________________________________________________________________
	88	void AliT0CalibTimeEq::Reset()
	89	{
59b8a5fc	90	//reset values
59b8a5fc	91
a2ad8166	92	memset(fCFDvalue,0,120*sizeof(Float_t));
	93	memset(fTimeEq,1,24*sizeof(Float_t));
	94	}
	95
	96
	97	//________________________________________________________________
	98	void AliT0CalibTimeEq::Print(Option_t*) const
	99	{
59b8a5fc	100	// print time values
a2ad8166	101
	102	printf("\n ---- PM Arrays ----\n\n");
	103	printf(" Time delay CFD \n");
	104	for (Int_t i=0; i<24; i++) printf(" CFD %f ",fTimeEq[i]);
b95e8d87	105	printf("\n Mean Vertex %f \n", fMeanVertex);
a2ad8166	106	}
	107
	108
	109	//________________________________________________________________
02888358	110	Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
a2ad8166	111	{
59b8a5fc	112	// compute online equalized time
1e7108ce	113	Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
c4ba15c3	114	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
c4ba15c3	115	Double_t rmsver=0;
b5e0299c	116	Int_t nent=0;
02888358	117	Bool_t ok=false;
c2337900	118	gFile = TFile::Open(filePhys);
370867d2	119	if(!gFile) {
6318dd46	120	AliError("No input PHYS data found ");
	121	}
	122	else
	123	{
02888358	124	ok=true;
6318dd46	125	for (Int_t i=0; i<24; i++)
6318dd46	126	{
18086258	127
e691fec9	128	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
1e7108ce	129	TH1F cfd = (TH1F) gFile->Get(Form("CFD1minCFD%d",i+1));
1e7108ce	130	TH1F cfdtime = (TH1F) gFile->Get(Form("CFD%d",i+1));
dd92f5b8	131	if(!cfd) {
dd92f5b8	132	AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
dd92f5b8	133	}
	134	if(!cfdtime) {
	135	AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
dd92f5b8	136	}
eef60a6a	137	if(cfd) {
e691fec9	138	nent = Int_t(cfd->GetEntries());
18086258	139	if(nent>50) {
612737bb	140	if(cfd->GetRMS()>1.5 )
e691fec9	141	GetMeanAndSigma(cfd, meandiff, sigmadiff);
	142	if(cfd->GetRMS()<=1.5)
	143	{
	144	meandiff = cfd->GetMean();
	145	sigmadiff=cfd->GetRMS();
	146	}
dd92f5b8	147	Int_t maxBin = cfd->GetMaximumBin();
	148	Double_t meanEstimate = cfd->GetBinCenter( maxBin);
	149	if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
1e7108ce	150	}
	151	else
	152	{
18086258	153	// ok=false;
e691fec9	154	AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
1e7108ce	155	}
1e7108ce	156	}
1e7108ce	157	if(cfdtime) {
e691fec9	158	nent = Int_t(cfdtime->GetEntries());
18086258	159	if(nent > 50 ) { //!!!!!!!!!!
b5e0299c	160	if(cfdtime->GetRMS()>1.5 )
e691fec9	161	GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	162	if(cfdtime->GetRMS()<=1.5)
	163	{
	164	meancfdtime = cfdtime->GetMean();
	165	sigmacfdtime = cfdtime->GetRMS();
	166	}
dd92f5b8	167	Int_t maxBin = cfdtime->GetMaximumBin();
	168	Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
	169	if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
1e7108ce	170	}
dd92f5b8	171	else
dd92f5b8	172	{
18086258	173	// ok=false;
dd92f5b8	174	AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
dd92f5b8	175	}
1e7108ce	176	}
1e7108ce	177	SetTimeEq(i,meandiff);
	178	SetTimeEqRms(i,sigmadiff);
	179	SetCFDvalue(i,0,meancfdtime);
1e7108ce	180	if (cfd) delete cfd;
1e7108ce	181	if (cfdtime) delete cfdtime;
dd92f5b8	182
1e7108ce	183	}
1e7108ce	184	TH1F ver = (TH1F) gFile->Get("hVertex");
1e7108ce	185	if(ver) {
	186	meanver = ver->GetMean();
	187	rmsver = ver->GetRMS();
	188	}
	189	SetMeanVertex(meanver);
	190	SetRmsVertex(rmsver);
	191
	192	gFile->Close();
	193	delete gFile;
dd92f5b8	194
1e7108ce	195	}
	196	return ok;
	197	}
	198
	199	//________________________________________________________________
dd92f5b8	200	Bool_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t timecdb, Float_t cfdvalue, Int_t badpmt)
1e7108ce	201	{
dd92f5b8	202	// compute offline equalized time
1e7108ce	203	Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
c4ba15c3	204	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
1e7108ce	205	Int_t nent=0;
1e7108ce	206	Bool_t ok=false;
bb54f817	207	TH1F *cfddiff = NULL;
bb54f817	208	TH1F *cfdtime = NULL;
dd92f5b8	209	TObjArray * TzeroObj = NULL;
bb54f817	210
c4ba15c3	211	gFile = TFile::Open(filePhys);
1e7108ce	212	if(!gFile) {
1e7108ce	213	AliError("No input PHYS data found ");
612737bb	214	return ok;
1e7108ce	215	}
	216	else
	217	{
e691fec9	218	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
1e7108ce	219	ok=true;
612737bb	220	TDirectory dr = (TDirectory) gFile->Get("T0Calib");
dd92f5b8	221	if (dr) TzeroObj = (TObjArray*) dr->Get("T0Calib");
18086258	222
612737bb	223	for (Int_t i=0; i<24; i++)
1e7108ce	224	{
b5e0299c	225	if (i != badpmt) {
bb54f817	226	if(TzeroObj) {
bb54f817	227	cfddiff = (TH1F*)TzeroObj->FindObject(Form("CFD1minCFD%d",i+1));
18086258	228	cfdtime = (TH1F*)TzeroObj->FindObject(Form("CFD%d",i+1));
bb54f817	229	}
	230	else
	231	{
dd92f5b8	232	cfddiff = (TH1F*)gFile->Get(Form("CFD1minCFD%d",i+1));
18086258	233	cfdtime = (TH1F*)gFile->Get(Form("CFD%d",i+1));
18086258	234
bb54f817	235	}
18086258	236	if(!cfddiff ) {
	237	AliWarning(Form("no histograms collected by pass0 for diff channel %i", i));
	238	SetTimeEq(i,timecdb[i]);
	239	SetTimeEqRms(i,0);
dd92f5b8	240	}
dd92f5b8	241	if(cfddiff) {
18086258	242	nent = Int_t(cfddiff->GetEntries());
b9dd81a7	243	if(nent>500 ) { //!!!!!
18086258	244	if(cfddiff->GetRMS()>1.5 )
	245	GetMeanAndSigma(cfddiff, meandiff, sigmadiff);
	246	if(cfddiff->GetRMS()<=1.5)
	247	{
	248	meandiff = cfddiff->GetMean();
	249	sigmadiff = cfddiff->GetRMS();
	250	}
657abde7	251	Int_t maxBin = cfddiff->GetMaximumBin();
657abde7	252	Double_t meanEstimate = cfddiff->GetBinCenter( maxBin);
18086258	253	if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
f824d160	254	}
18086258	255	else
e691fec9	256	{
18086258	257	AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
	258	SetTimeEq(i,timecdb[i]);
	259	SetTimeEqRms(i,0);
	260
	261	}
	262	}
	263
	264	if(!cfdtime ) {
	265	AliWarning(Form("no histograms collected by pass0 for time channel %i", i));
	266	SetTimeEq(i, cfdvalue[i]);
	267	SetTimeEqRms(i, 0);
	268	}
	269	if(cfdtime) {
	270	nent = Int_t(cfdtime->GetEntries());
b9dd81a7	271	if(nent>500 ) { //!!!!!
18086258	272	if(cfdtime->GetRMS()>1.5 )
	273	GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	274	if(cfdtime->GetRMS()<=1.5)
	275	{
	276	meancfdtime = cfdtime->GetMean();
	277	sigmacfdtime=cfdtime->GetRMS();
e691fec9	278	}
657abde7	279	Int_t maxBin = cfdtime->GetMaximumBin();
	280	Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
	281	if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
1e7108ce	282	}
e691fec9	283	else
e691fec9	284	{
e691fec9	285	AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
18086258	286	SetTimeEq(i, cfdvalue[i]);
18086258	287	SetTimeEqRms(i, 0);
1e7108ce	288	}
eef60a6a	289	}
bb54f817	290
b9dd81a7	291	SetTimeEq(i,meandiff);
1e7108ce	292	SetTimeEqRms(i,sigmadiff);
18086258	293	SetCFDvalue(i,0, meancfdtime );
bb54f817	294	if (cfddiff) cfddiff->Reset();
bb54f817	295	if (cfdtime) cfdtime->Reset();
b5e0299c	296	} //bad pmt
6318dd46	297	}
6318dd46	298
	299	gFile->Close();
	300	delete gFile;
02888358	301
6318dd46	302	}
02888358	303	return ok;
e691fec9	304	}
a2ad8166	305
1e7108ce	306	//________________________________________________________________________
1e7108ce	307	void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) {
612737bb	308
	309	const double window = 2.; //fit window
	310
1e7108ce	311	double meanEstimate, sigmaEstimate;
	312	int maxBin;
	313	maxBin = hist->GetMaximumBin(); //position of maximum
	314	meanEstimate = hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
18086258	315	// sigmaEstimate = hist->GetRMS();
18086258	316	sigmaEstimate = 10;
1e7108ce	317	TF1* fit= new TF1("fit","gaus", meanEstimate - windowsigmaEstimate, meanEstimate + windowsigmaEstimate);
1e7108ce	318	fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
b5e0299c	319	hist->Fit("fit","RQ","Q");
1e7108ce	320
	321	mean = (Float_t) fit->GetParameter(1);
	322	sigma = (Float_t) fit->GetParameter(2);
	323
	324	delete fit;
	325	}
	326
8bfd9a3e	327