[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)      
{
  //
  for(Int_t i=0; i<24; i++) {
   fTimeEq[i] = 0;	      // Time Equalized for OCDB	 
   fTimeEqRms[i] = -1;	      // RMS of Time Equalized for OCDB	 
   for (Int_t ih=0; ih<5; ih++)   fCFDvalue[i][ih] = 0;
  }
}

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

  TString namst = "Calib_";
  namst += name;
  SetName(namst.Data());
  SetTitle(namst.Data());
  for(Int_t i=0; i<24; i++) {
   fTimeEq[i] = 0;	      // Time Equalized for OCDB	 
   fTimeEqRms[i] = -1;	      // RMS of Time Equalized for OCDB	 
   for (Int_t ih=0; ih<5; ih++)   fCFDvalue[i][ih] = 0;
  }
}

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

}

//________________________________________________________________
AliT0CalibTimeEq &AliT0CalibTimeEq::operator =(const AliT0CalibTimeEq& calibda)
{
// assignment operator
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());
 
  if (this != &calibda) (( AliT0CalibTimeEq &) calibda).Copy(*this);
  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 diff %f  \n",fCFDvalue[i][0],fTimeEq[i]);
} 


//________________________________________________________________
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;
  Int_t okdiff=0;
  Int_t oktime=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));
	    okdiff++;
	    if(okdiff<4) {
	      meandiff = 0;
	      sigmadiff = 0;
	    }
	    else
	      ok = false; 
	  }
	  if(!cfdtime) {
	    AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
	    oktime++;
	    if(oktime<4) {
	      meancfdtime = 0;
	    }
	    else
	      ok = false; 
	  }
	  if(cfd) {
	    nent = Int_t(cfd->GetEntries());
	    if( nent<=50) {
	      okdiff++;
	      //	      printf(" pmt %i nent %i cfd->GetRMS() %f cfd->GetMean() %f \n",
	      //     i, nent, cfd->GetRMS(), cfd->GetMean() );
	      if(okdiff<4) {
		meandiff = 0;
		sigmadiff = 0;
	      }
	      else
		{
		  // printf(" OK fsle:: pmt %i nent %i cfd->GetRMS() %f cfd->GetMean() %f \n",
		  // i, nent, cfd->GetRMS(), cfd->GetMean() );
		  AliWarning(Form(" Not  enouph data in PMT %i- PMT1:  %i ", i, nent));
		  ok = false; 
		}
	    }
	    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; 
	    }
	  }
	  
	  if(cfdtime) {
	    nent = Int_t(cfdtime->GetEntries());
	    if( nent<=50  ) {
	      oktime++;
	      if(oktime<4) {
		meancfdtime = 0;
	      }
	      else
		{
		  AliWarning(Form(" Not  enouph data in PMT %i:  %i ", i, nent));
		  ok = false; 
		}
	    }
	    if(nent > 50  )  { //!!!!!!!!!!
	      if(cfdtime->GetRMS()>1.5 )
		GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	      if(cfdtime->GetRMS()<=1.5) 
		{
		  if(cfdtime->GetRMS()==0 ||cfdtime->GetMean()==0 ) {
		    ok = false;
		  }
		  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; 
	    }
	  }
	  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; 
}

//________________________________________________________________
Int_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t *timecdb, Float_t *cfdvalue, Int_t badpmt)
{
  // fStatus implementation:
  //ok means
  // 1000  - can not open file 
  // for timediff
  // 20 >3 histos are empty
  // -11  low statistics oe empty histos in few channels; for these channels OCDB value will be written back WARNING
  // for cfd
  // 20 >2 histos are empty or with low statistic 
  // -11 if less 3 channels are empty or low statistics in few channels ;for these channels OCDB value will be written back WARNING
   //
  // compute offline equalized time
  Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
  meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
  Int_t nent=0;
  Int_t ok = 0;
  Int_t okcfd=0;
  TH1F *cfddiff = NULL; 
  TH1F *cfdtime = NULL;
  TObjArray * tzeroObj = NULL;

  gFile = TFile::Open(filePhys);
  if(!gFile) {
    AliError("No input PHYS data found ");
    ok = 1000;
    return ok;
  }
  else
    {
      meandiff = sigmadiff =  meanver = meancfdtime = sigmacfdtime =0;
      //      TDirectory *dr = (TDirectory*) gFile->Get("T0Calib");
      tzeroObj = dynamic_cast<TObjArray*>(gFile->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\n", i));    
		meandiff = timecdb[i];
		sigmadiff = 0;
	      }
	    if(cfddiff) {
	      nent = Int_t(cfddiff->GetEntries());
	      if ( nent == 0  ) {
		AliWarning(Form("no  entries in histogram for diff channel %i\n", i));
		meandiff = timecdb[i];
		sigmadiff = 0;
	      }
	      if(nent<=100 && nent>0) { //!!!!!
		AliWarning(Form(" Not  enouph data in PMT %i- PMT1:  %i \n", i, nent));
		meandiff = timecdb[i];
		sigmadiff = 0; 
	      }
	      if(nent>=100 )  { //!!!!!
		{
		  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; 
		}
	      }	    
	    }
	    if(!cfdtime ) {
	      AliWarning(Form("no  histograms collected by pass0 for time channel %i", i));
	      meancfdtime = cfdvalue[i];
	      okcfd++;
	      if(okcfd<2) {
		meancfdtime = cfdvalue[i];
		//	ok = -11;
	      }
	      else {
		AliError(Form("no  histograms collected by pass0 for time %i channels ", okcfd));
		return 20; 
	      }
	    }
	    if(cfdtime) {
	      nent = Int_t(cfdtime->GetEntries());
	      if (nent == 0 || 
		  (cfdtime->GetRMS() == 0 || cfdtime->GetMean() ==0 ) ) 
		{
		  okcfd++;
		  if(okcfd<2) {
		    meancfdtime = cfdvalue[i];
		    //   ok = -11;
		    printf("!!!!bad data:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
			   i, nent, cfdtime->GetRMS(), cfdtime->GetMean(), cfdvalue[i] );
		  }
		  else
		    {
		    printf("!!!!fatal data:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
			   i, nent, cfdtime->GetRMS(), cfdtime->GetMean(), cfdvalue[i]);
		      AliError(Form(" histograms collected by pass0 for time %i channels are empty", okcfd));
		      return 20; 
		    }
		}
	      
		  
	      if(nent<=100 && nent>0 ) 
		{
		  okcfd++;
		AliWarning(Form(" Not  enouph data in PMT in CFD peak %i - %i ", i, nent));
		  meancfdtime = cfdvalue[i];
		  ok = -11;
		  printf("!!!!low statstics:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
			 i, nent, cfdtime->GetRMS(), cfdtime->GetMean(),  cfdvalue[i]);
		  if (okcfd>3) return ok;
		}
	      	      
	      if( nent>100 )    { //!!!!!
		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; 
	    }
	  }
	  
	  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 = 5.;  //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","QR","");

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

  delete fit;
}
Commit	Line	Data
	1
	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	// //
	21	// class for T0 calibration TM-AC-AM_6-02-2006
	22	// equalize time shift for each time CFD channel
	23	// //
	24	///////////////////////////////////////////////////////////////////////////////
	25
	26	#include "AliT0CalibTimeEq.h"
	27	#include "AliLog.h"
	28	#include <TFile.h>
	29	#include <TMath.h>
	30	#include <TF1.h>
	31	#include <TSpectrum.h>
	32	#include <TProfile.h>
	33	#include <iostream>
	34
	35	ClassImp(AliT0CalibTimeEq)
	36
	37	//________________________________________________________________
	38	AliT0CalibTimeEq::AliT0CalibTimeEq():TNamed(),
	39	fMeanVertex(0),
	40	fRmsVertex(0)
	41	{
	42	//
	43	for(Int_t i=0; i<24; i++) {
	44	fTimeEq[i] = 0; // Time Equalized for OCDB
	45	fTimeEqRms[i] = -1; // RMS of Time Equalized for OCDB
	46	for (Int_t ih=0; ih<5; ih++) fCFDvalue[i][ih] = 0;
	47	}
	48	}
	49
	50	//________________________________________________________________
	51	AliT0CalibTimeEq::AliT0CalibTimeEq(const char* name):TNamed(),
	52	fMeanVertex(0),
	53	fRmsVertex(0)
	54	{
	55	//constructor
	56
	57	TString namst = "Calib_";
	58	namst += name;
	59	SetName(namst.Data());
	60	SetTitle(namst.Data());
	61	for(Int_t i=0; i<24; i++) {
	62	fTimeEq[i] = 0; // Time Equalized for OCDB
	63	fTimeEqRms[i] = -1; // RMS of Time Equalized for OCDB
	64	for (Int_t ih=0; ih<5; ih++) fCFDvalue[i][ih] = 0;
	65	}
	66	}
	67
	68	//________________________________________________________________
	69	AliT0CalibTimeEq::AliT0CalibTimeEq(const AliT0CalibTimeEq& calibda):TNamed(calibda),
	70	fMeanVertex(0),
	71	fRmsVertex(0)
	72	{
	73	// copy constructor
	74	SetName(calibda.GetName());
	75	SetTitle(calibda.GetName());
	76	((AliT0CalibTimeEq &) calibda).Copy(*this);
	77
	78	}
	79
	80	//________________________________________________________________
	81	AliT0CalibTimeEq &AliT0CalibTimeEq::operator =(const AliT0CalibTimeEq& calibda)
	82	{
	83	// assignment operator
	84	SetName(calibda.GetName());
	85	SetTitle(calibda.GetName());
	86
	87	if (this != &calibda) (( AliT0CalibTimeEq &) calibda).Copy(*this);
	88	return *this;
	89	}
	90
	91	//________________________________________________________________
	92	AliT0CalibTimeEq::~AliT0CalibTimeEq()
	93	{
	94	//
	95	// destrictor
	96	}
	97	//________________________________________________________________
	98	void AliT0CalibTimeEq::Reset()
	99	{
	100	//reset values
	101
	102	memset(fCFDvalue,0,120*sizeof(Float_t));
	103	memset(fTimeEq,1,24*sizeof(Float_t));
	104	}
	105
	106
	107	//________________________________________________________________
	108	void AliT0CalibTimeEq::Print(Option_t*) const
	109	{
	110	// print time values
	111
	112	printf("\n ---- PM Arrays ----\n\n");
	113	printf(" Time delay CFD \n");
	114	for (Int_t i=0; i<24; i++)
	115	printf(" CFD %f diff %f \n",fCFDvalue[i][0],fTimeEq[i]);
	116	}
	117
	118
	119	//________________________________________________________________
	120	Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
	121	{
	122	// compute online equalized time
	123	Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
	124	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
	125	Double_t rmsver=0;
	126	Int_t nent=0;
	127	Int_t okdiff=0;
	128	Int_t oktime=0;
	129	Bool_t ok=false;
	130	//
	131	gFile = TFile::Open(filePhys);
	132	if(!gFile) {
	133	AliError("No input PHYS data found ");
	134	}
	135	else
	136	{
	137	ok=true;
	138	for (Int_t i=0; i<24; i++)
	139	{
	140	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
	141	TH1F cfd = (TH1F) gFile->Get(Form("CFD1minCFD%d",i+1));
	142	TH1F cfdtime = (TH1F) gFile->Get(Form("CFD%d",i+1));
	143	if(!cfd) {
	144	AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
	145	okdiff++;
	146	if(okdiff<4) {
	147	meandiff = 0;
	148	sigmadiff = 0;
	149	}
	150	else
	151	ok = false;
	152	}
	153	if(!cfdtime) {
	154	AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
	155	oktime++;
	156	if(oktime<4) {
	157	meancfdtime = 0;
	158	}
	159	else
	160	ok = false;
	161	}
	162	if(cfd) {
	163	nent = Int_t(cfd->GetEntries());
	164	if( nent<=50) {
	165	okdiff++;
	166	// printf(" pmt %i nent %i cfd->GetRMS() %f cfd->GetMean() %f \n",
	167	// i, nent, cfd->GetRMS(), cfd->GetMean() );
	168	if(okdiff<4) {
	169	meandiff = 0;
	170	sigmadiff = 0;
	171	}
	172	else
	173	{
	174	// printf(" OK fsle:: pmt %i nent %i cfd->GetRMS() %f cfd->GetMean() %f \n",
	175	// i, nent, cfd->GetRMS(), cfd->GetMean() );
	176	AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
	177	ok = false;
	178	}
	179	}
	180	if(nent>50) {
	181	if(cfd->GetRMS()>1.5 )
	182	GetMeanAndSigma(cfd, meandiff, sigmadiff);
	183	if(cfd->GetRMS()<=1.5)
	184	{
	185	meandiff = cfd->GetMean();
	186	sigmadiff=cfd->GetRMS();
	187	}
	188	Int_t maxBin = cfd->GetMaximumBin();
	189	Double_t meanEstimate = cfd->GetBinCenter( maxBin);
	190	if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
	191	}
	192	}
	193
	194	if(cfdtime) {
	195	nent = Int_t(cfdtime->GetEntries());
	196	if( nent<=50 ) {
	197	oktime++;
	198	if(oktime<4) {
	199	meancfdtime = 0;
	200	}
	201	else
	202	{
	203	AliWarning(Form(" Not enouph data in PMT %i: %i ", i, nent));
	204	ok = false;
	205	}
	206	}
	207	if(nent > 50 ) { //!!!!!!!!!!
	208	if(cfdtime->GetRMS()>1.5 )
	209	GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	210	if(cfdtime->GetRMS()<=1.5)
	211	{
	212	if(cfdtime->GetRMS()==0 \|\|cfdtime->GetMean()==0 ) {
	213	ok = false;
	214	}
	215	meancfdtime = cfdtime->GetMean();
	216	sigmacfdtime = cfdtime->GetRMS();
	217	}
	218	Int_t maxBin = cfdtime->GetMaximumBin();
	219	Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
	220	if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
	221	}
	222	}
	223	SetTimeEq(i,meandiff);
	224	SetTimeEqRms(i,sigmadiff);
	225	SetCFDvalue(i,0,meancfdtime);
	226	if (cfd) delete cfd;
	227	if (cfdtime) delete cfdtime;
	228	}
	229	TH1F ver = (TH1F) gFile->Get("hVertex") ;
	230	if(ver) {
	231	meanver = ver->GetMean();
	232	rmsver = ver->GetRMS();
	233	}
	234	SetMeanVertex(meanver);
	235	SetRmsVertex(rmsver);
	236	gFile->Close();
	237	delete gFile;
	238	}
	239	return ok;
	240	}
	241
	242	//________________________________________________________________
	243	Int_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t timecdb, Float_t cfdvalue, Int_t badpmt)
	244	{
	245	// fStatus implementation:
	246	//ok means
	247	// 1000 - can not open file
	248	// for timediff
	249	// 20 >3 histos are empty
	250	// -11 low statistics oe empty histos in few channels; for these channels OCDB value will be written back WARNING
	251	// for cfd
	252	// 20 >2 histos are empty or with low statistic
	253	// -11 if less 3 channels are empty or low statistics in few channels ;for these channels OCDB value will be written back WARNING
	254	//
	255	// compute offline equalized time
	256	Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
	257	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
	258	Int_t nent=0;
	259	Int_t ok = 0;
	260	Int_t okcfd=0;
	261	TH1F *cfddiff = NULL;
	262	TH1F *cfdtime = NULL;
	263	TObjArray * tzeroObj = NULL;
	264
	265	gFile = TFile::Open(filePhys);
	266	if(!gFile) {
	267	AliError("No input PHYS data found ");
	268	ok = 1000;
	269	return ok;
	270	}
	271	else
	272	{
	273	meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
	274	// TDirectory dr = (TDirectory) gFile->Get("T0Calib");
	275	tzeroObj = dynamic_cast<TObjArray*>(gFile->Get("T0Calib"));
	276	for (Int_t i=0; i<24; i++)
	277	{
	278	if (i != badpmt) {
	279	if(tzeroObj) {
	280	cfddiff = (TH1F*) tzeroObj->FindObject(Form("CFD1minCFD%d",i+1));
	281	cfdtime = (TH1F*)tzeroObj->FindObject(Form("CFD%d",i+1));
	282	}
	283	else
	284	{
	285	cfddiff = (TH1F*)gFile->Get(Form("CFD1minCFD%d",i+1));
	286	cfdtime = (TH1F*)gFile->Get(Form("CFD%d",i+1));
	287
	288	}
	289	if(!cfddiff ) {
	290	AliWarning(Form("no histograms collected by pass0 for diff channel %i\n", i));
	291	meandiff = timecdb[i];
	292	sigmadiff = 0;
	293	}
	294	if(cfddiff) {
	295	nent = Int_t(cfddiff->GetEntries());
	296	if ( nent == 0 ) {
	297	AliWarning(Form("no entries in histogram for diff channel %i\n", i));
	298	meandiff = timecdb[i];
	299	sigmadiff = 0;
	300	}
	301	if(nent<=100 && nent>0) { //!!!!!
	302	AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i \n", i, nent));
	303	meandiff = timecdb[i];
	304	sigmadiff = 0;
	305	}
	306	if(nent>=100 ) { //!!!!!
	307	{
	308	if(cfddiff->GetRMS()>1.5 )
	309	GetMeanAndSigma(cfddiff, meandiff, sigmadiff);
	310	if(cfddiff->GetRMS()<=1.5)
	311	{
	312	meandiff = cfddiff->GetMean();
	313	sigmadiff = cfddiff->GetRMS();
	314	}
	315	Int_t maxBin = cfddiff->GetMaximumBin();
	316	Double_t meanEstimate = cfddiff->GetBinCenter( maxBin);
	317	if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
	318	}
	319	}
	320	}
	321	if(!cfdtime ) {
	322	AliWarning(Form("no histograms collected by pass0 for time channel %i", i));
	323	meancfdtime = cfdvalue[i];
	324	okcfd++;
	325	if(okcfd<2) {
	326	meancfdtime = cfdvalue[i];
	327	// ok = -11;
	328	}
	329	else {
	330	AliError(Form("no histograms collected by pass0 for time %i channels ", okcfd));
	331	return 20;
	332	}
	333	}
	334	if(cfdtime) {
	335	nent = Int_t(cfdtime->GetEntries());
	336	if (nent == 0 \|\|
	337	(cfdtime->GetRMS() == 0 \|\| cfdtime->GetMean() ==0 ) )
	338	{
	339	okcfd++;
	340	if(okcfd<2) {
	341	meancfdtime = cfdvalue[i];
	342	// ok = -11;
	343	printf("!!!!bad data:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
	344	i, nent, cfdtime->GetRMS(), cfdtime->GetMean(), cfdvalue[i] );
	345	}
	346	else
	347	{
	348	printf("!!!!fatal data:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
	349	i, nent, cfdtime->GetRMS(), cfdtime->GetMean(), cfdvalue[i]);
	350	AliError(Form(" histograms collected by pass0 for time %i channels are empty", okcfd));
	351	return 20;
	352	}
	353	}
	354
	355
	356	if(nent<=100 && nent>0 )
	357	{
	358	okcfd++;
	359	AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
	360	meancfdtime = cfdvalue[i];
	361	ok = -11;
	362	printf("!!!!low statstics:: pmt %i nent%i RMS %f mean %f cdbtime %f \n",
	363	i, nent, cfdtime->GetRMS(), cfdtime->GetMean(), cfdvalue[i]);
	364	if (okcfd>3) return ok;
	365	}
	366
	367	if( nent>100 ) { //!!!!!
	368	if(cfdtime->GetRMS()>1.5 )
	369	GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
	370	if(cfdtime->GetRMS()<=1.5)
	371	{
	372	meancfdtime = cfdtime->GetMean();
	373	sigmacfdtime=cfdtime->GetRMS();
	374	}
	375	Int_t maxBin = cfdtime->GetMaximumBin();
	376	Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
	377	if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
	378	}
	379	}
	380
	381	SetTimeEq(i,meandiff);
	382	SetTimeEqRms(i,sigmadiff);
	383	SetCFDvalue(i,0, meancfdtime );
	384	if (cfddiff) cfddiff->Reset();
	385	if (cfdtime) cfdtime->Reset();
	386	} //bad pmt
	387	}
	388	gFile->Close();
	389	delete gFile;
	390	}
	391	return ok;
	392	}
	393
	394	//________________________________________________________________________
	395	void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) {
	396
	397	const double window = 5.; //fit window
	398	double meanEstimate, sigmaEstimate;
	399	int maxBin;
	400	maxBin = hist->GetMaximumBin(); //position of maximum
	401	meanEstimate = hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
	402	sigmaEstimate = hist->GetRMS();
	403	// sigmaEstimate = 10;
	404	TF1* fit= new TF1("fit","gaus", meanEstimate - windowsigmaEstimate, meanEstimate + windowsigmaEstimate);
	405	fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
	406	hist->Fit("fit","QR","");
	407
	408	mean = (Float_t) fit->GetParameter(1);
	409	sigma = (Float_t) fit->GetParameter(2);
	410
	411	delete fit;
	412	}
	413
	414