[u/mrichter/AliRoot.git] / EMCAL / AliCaloRawAnalyzerFakeALTRO.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.                  *
 **************************************************************************/

/*
 
 
Author: R. GUERNANE LPSC Grenoble CNRS/IN2P3
*/

#include "AliCaloRawAnalyzerFakeALTRO.h"
#include "AliCaloBunchInfo.h"
#include "AliCaloFitResults.h"
#include "AliLog.h"
#include "TMath.h"
#include <stdexcept>
#include <iostream>
#include "TF1.h"
#include "TGraph.h"

using namespace std;


#define BAD 4  //CRAP PTH
 
ClassImp( AliCaloRawAnalyzerFakeALTRO )


AliCaloRawAnalyzerFakeALTRO::AliCaloRawAnalyzerFakeALTRO() : AliCaloRawAnalyzer("Chi Square Fit", "LMS"),
						 fkEulerSquared(7.389056098930650227),
						 fTf1(0),
						 fTau(2.35),
						 fFixTau(kTRUE)
{
  //comment
  for(int i=0; i < MAXSAMPLES; i++)
    {
      fXaxis[i] = i;
    }
  
  fTf1 = new TF1( "myformula", "[0]*((x - [1])/[2])^2*exp(-2*(x -[1])/[2])",  0, 30 ); 
  if (fFixTau) {
    fTf1->FixParameter(2, fTau);
  }
  else {
    fTf1->ReleaseParameter(2); // allow par. to vary
    fTf1->SetParameter(2, fTau);
  }
 
}


AliCaloRawAnalyzerFakeALTRO::~AliCaloRawAnalyzerFakeALTRO()
{
  delete fTf1;
}


AliCaloFitResults
AliCaloRawAnalyzerFakeALTRO::Evaluate( const vector<AliCaloBunchInfo>  &bunchvector, const UInt_t altrocfg1,  const UInt_t altrocfg2 )
{
  // Extracting signal parameters using fitting
  short maxampindex; //index of maximum amplitude
  short maxamp; //Maximum amplitude
  int index = SelectBunch( bunchvector,  &maxampindex,  &maxamp );
  
  if( index >= 0)
    {
      Float_t  ped  = ReverseAndSubtractPed( &(bunchvector.at(index))  ,  altrocfg1, altrocfg2, fReversed  );
      Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(),  fReversed );
      short maxrev = maxampindex  -  bunchvector.at(index).GetStartBin();
      // timebinOffset is timebin value at maximum (maxrev)
      short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1);
      if(  maxf < fAmpCut  ||  ( maxamp - ped) > fOverflowCut  ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then)
	{
	  return  AliCaloFitResults( maxamp, ped, AliCaloFitResults::kCrude, maxf, timebinOffset);
 	}            
      else if ( maxf >= fAmpCut )
	{
	  int first = 0;
	  int last = 0;
	  SelectSubarray( fReversed,  bunchvector.at(index).GetLength(),  maxrev, &first, &last);
	  int nsamples =  last - first + 1;
	  
	  if( ( nsamples  )  >= fNsampleCut )
	    {
	      Float_t tmax = (maxrev - first); // local tmax estimate
	      TGraph *graph =  new TGraph(  nsamples, fXaxis,  &fReversed[first] );
	      fTf1->SetParameter(0, maxf*fkEulerSquared );
	      fTf1->SetParameter(1, tmax - fTau); 
	      // set rather loose parameter limits
	      fTf1->SetParLimits(0, 0.5*maxf*fkEulerSquared, 2*maxf*fkEulerSquared );
	      fTf1->SetParLimits(1, tmax - fTau - 4, tmax - fTau + 4); 

	      if (fFixTau) {
		fTf1->FixParameter(2, fTau);
	      }
	      else {
		fTf1->ReleaseParameter(2); // allow par. to vary
		fTf1->SetParameter(2, fTau);
	      }

	      Short_t tmpStatus = 0;
	      try {
		tmpStatus =  graph->Fit(fTf1, "Q0RW");
	      }
	      catch (const std::exception & e) {
		AliError( Form("TGraph Fit exception %s", e.what()) ); 
		return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kNoFit, maxf, timebinOffset,
					  timebinOffset, AliCaloFitResults::kDummy, AliCaloFitResults::kDummy, AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
	      }

	      if( fVerbose == true )
		{
		  AliCaloRawAnalyzer::PrintBunch( bunchvector.at(index) ); 
		  PrintFitResult( fTf1 ) ;
		}  
	      // global tmax
	      tmax = fTf1->GetParameter(1) + timebinOffset - (maxrev - first) // abs. t0
		+ fTf1->GetParameter(2); // +tau, makes sum tmax
	      
	        delete graph;
		return AliCaloFitResults( maxamp, ped , AliCaloFitResults::kFitPar,
					  fTf1->GetParameter(0)/fkEulerSquared, 
					  tmax,
					  timebinOffset,  
					  fTf1->GetChisquare(), 
					  fTf1->GetNDF(),
					  AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
				
		//     delete graph;
	
	    }
	  else
	    {
	      Float_t chi2 = CalculateChi2(maxf, maxrev, first, last);
	      Int_t ndf = last - first - 1; // nsamples - 2
	      return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kCrude, maxf, timebinOffset,
					timebinOffset, chi2, ndf, AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); 
	    }
        } // ampcut
    }
  return AliCaloFitResults( AliCaloFitResults::kInvalid, AliCaloFitResults::kInvalid );
  
}


void 
AliCaloRawAnalyzerFakeALTRO::PrintFitResult(const TF1 *f) const
{
  //comment
  cout << endl;
  cout << __FILE__ << __LINE__ << "Using this samplerange we get" << endl;
  cout << __FILE__ << __LINE__ << "AMPLITUDE = " << f->GetParameter(0)/fkEulerSquared << ",.. !!!!" << endl;
  cout << __FILE__ << __LINE__ << "TOF = " << f->GetParameter(1) << ",.. !!!!" << endl;
  cout << __FILE__ << __LINE__ << "NDF = " << f->GetNDF() << ",.. !!!!" << endl;
  //  cout << __FILE__ << __LINE__ << "STATUS = " << f->GetStatus()  << ",.. !!!!" << endl << endl;
  cout << endl << endl;
}
Commit	Line	Data
de39a0ff	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
	16	/*
	17
	18
	19	Author: R. GUERNANE LPSC Grenoble CNRS/IN2P3
	20	*/
	21
	22	#include "AliCaloRawAnalyzerFakeALTRO.h"
	23	#include "AliCaloBunchInfo.h"
	24	#include "AliCaloFitResults.h"
	25	#include "AliLog.h"
	26	#include "TMath.h"
	27	#include <stdexcept>
	28	#include <iostream>
	29	#include "TF1.h"
	30	#include "TGraph.h"
	31
	32	using namespace std;
	33
	34
	35	#define BAD 4 //CRAP PTH
	36
	37	ClassImp( AliCaloRawAnalyzerFakeALTRO )
	38
	39
	40	AliCaloRawAnalyzerFakeALTRO::AliCaloRawAnalyzerFakeALTRO() : AliCaloRawAnalyzer("Chi Square Fit", "LMS"),
	41	fkEulerSquared(7.389056098930650227),
	42	fTf1(0),
	43	fTau(2.35),
	44	fFixTau(kTRUE)
	45	{
	46	//comment
	47	for(int i=0; i < MAXSAMPLES; i++)
	48	{
	49	fXaxis[i] = i;
	50	}
	51
	52	fTf1 = new TF1( "myformula", "[0]((x - [1])/[2])^2exp(-2*(x -[1])/[2])", 0, 30 );
	53	if (fFixTau) {
	54	fTf1->FixParameter(2, fTau);
	55	}
	56	else {
	57	fTf1->ReleaseParameter(2); // allow par. to vary
	58	fTf1->SetParameter(2, fTau);
	59	}
	60
	61	}
	62
	63
	64	AliCaloRawAnalyzerFakeALTRO::~AliCaloRawAnalyzerFakeALTRO()
65	{
66	delete fTf1;
67	}
68
69
70
71	AliCaloFitResults
72	AliCaloRawAnalyzerFakeALTRO::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 )
73	{
74	// Extracting signal parameters using fitting
75	short maxampindex; //index of maximum amplitude
76	short maxamp; //Maximum amplitude
77	int index = SelectBunch( bunchvector, &maxampindex, &maxamp );
78
79	if( index >= 0)
80	{
81	Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed );
82	Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed );
83	short maxrev = maxampindex - bunchvector.at(index).GetStartBin();
84	// timebinOffset is timebin value at maximum (maxrev)
85	short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1);
86	if( maxf < fAmpCut \|\| ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then)
87	{
88	return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kCrude, maxf, timebinOffset);
89	}
90	else if ( maxf >= fAmpCut )
91	{
92	int first = 0;
93	int last = 0;
94	SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last);
95	int nsamples = last - first + 1;
96
97	if( ( nsamples ) >= fNsampleCut )
98	{
99	Float_t tmax = (maxrev - first); // local tmax estimate
100	TGraph *graph = new TGraph( nsamples, fXaxis, &fReversed[first] );
101	fTf1->SetParameter(0, maxf*fkEulerSquared );
102	fTf1->SetParameter(1, tmax - fTau);
103	// set rather loose parameter limits
104	fTf1->SetParLimits(0, 0.5maxffkEulerSquared, 2maxffkEulerSquared );
105	fTf1->SetParLimits(1, tmax - fTau - 4, tmax - fTau + 4);
106
107	if (fFixTau) {
108	fTf1->FixParameter(2, fTau);
109	}
110	else {
111	fTf1->ReleaseParameter(2); // allow par. to vary
112	fTf1->SetParameter(2, fTau);
113	}
114
115	Short_t tmpStatus = 0;
116	try {
117	tmpStatus = graph->Fit(fTf1, "Q0RW");
118	}
119	catch (const std::exception & e) {
120	AliError( Form("TGraph Fit exception %s", e.what()) );
121	return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kNoFit, maxf, timebinOffset,
122	timebinOffset, AliCaloFitResults::kDummy, AliCaloFitResults::kDummy, AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
123	}
124
125	if( fVerbose == true )
126	{
127	AliCaloRawAnalyzer::PrintBunch( bunchvector.at(index) );
128	PrintFitResult( fTf1 ) ;
129	}
130	// global tmax
131	tmax = fTf1->GetParameter(1) + timebinOffset - (maxrev - first) // abs. t0
132	+ fTf1->GetParameter(2); // +tau, makes sum tmax
133
134	delete graph;
135	return AliCaloFitResults( maxamp, ped , AliCaloFitResults::kFitPar,
136	fTf1->GetParameter(0)/fkEulerSquared,
137	tmax,
138	timebinOffset,
139	fTf1->GetChisquare(),
140	fTf1->GetNDF(),
141	AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
142
143	// delete graph;
144
145	}
146	else
147	{
148	Float_t chi2 = CalculateChi2(maxf, maxrev, first, last);
149	Int_t ndf = last - first - 1; // nsamples - 2
150	return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kCrude, maxf, timebinOffset,
151	timebinOffset, chi2, ndf, AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
152	}
153	} // ampcut
154	}
155	return AliCaloFitResults( AliCaloFitResults::kInvalid, AliCaloFitResults::kInvalid );
156
157	}
158
159
160	void
161	AliCaloRawAnalyzerFakeALTRO::PrintFitResult(const TF1 *f) const
162	{
163	//comment
164	cout << endl;
165	cout << __FILE__ << __LINE__ << "Using this samplerange we get" << endl;
166	cout << __FILE__ << __LINE__ << "AMPLITUDE = " << f->GetParameter(0)/fkEulerSquared << ",.. !!!!" << endl;
167	cout << __FILE__ << __LINE__ << "TOF = " << f->GetParameter(1) << ",.. !!!!" << endl;
168	cout << __FILE__ << __LINE__ << "NDF = " << f->GetNDF() << ",.. !!!!" << endl;
169	// cout << __FILE__ << __LINE__ << "STATUS = " << f->GetStatus() << ",.. !!!!" << endl << endl;
170	cout << endl << endl;
171	}
172