Bug fix: The fitting algorithm variable was not initialized for this class
[u/mrichter/AliRoot.git] / EMCAL / AliCaloRawAnalyzerFastFit.cxx
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168c7b3c 1// -*- mode: c++ -*-
e37e3c84 2/**************************************************************************
3 * This file is property of and copyright by the Experimental Nuclear *
4 * Physics Group, Dep. of Physics *
5 * University of Oslo, Norway, 2007 *
6 * *
7 * Author: Per Thomas Hille <perthi@fys.uio.no> for the ALICE HLT Project.*
8 * Contributors are mentioned in the code where appropriate. *
9 * Please report bugs to perthi@fys.uio.no *
10 * *
11 * Permission to use, copy, modify and distribute this software and its *
12 * documentation strictly for non-commercial purposes is hereby granted *
13 * without fee, provided that the above copyright notice appears in all *
14 * copies and that both the copyright notice and this permission notice *
15 * appear in the supporting documentation. The authors make no claims *
16 * about the suitability of this software for any purpose. It is *
17 * provided "as is" without express or implied warranty. *
18 **************************************************************************/
19
20
21// Extraction of Amplitude and peak
22// position using specila algorithm
23// from Alexei Pavlinov
24// ----------------
25// ----------------
26
27#include "AliCaloRawAnalyzerFastFit.h"
28#include "AliCaloFastAltroFitv0.h"
29#include "AliCaloFitResults.h"
30#include "AliCaloBunchInfo.h"
f57baa2d 31#include "TMath.h"
e37e3c84 32#include <iostream>
33
168c7b3c 34
e37e3c84 35using namespace std;
36
168c7b3c 37#include "AliCaloConstants.h"
38//using namespace CaloConstants::FitAlgorithm;
39//using namespace CaloConstants::ReturnCodes;
40
e37e3c84 41ClassImp( AliCaloRawAnalyzerFastFit )
42
48a2e3eb 43AliCaloRawAnalyzerFastFit::AliCaloRawAnalyzerFastFit() : AliCaloRawAnalyzer("Fast Fit (Alexei)", "FF")
e37e3c84 44{
45 // Comment
168c7b3c 46 fAlgo= Algo::kFastFit;
e37e3c84 47
48 for(int i=0; i < 1008; i++)
49 {
50 fXAxis[i] = i;
51 }
52
53}
54
55AliCaloRawAnalyzerFastFit::~AliCaloRawAnalyzerFastFit()
56{
57
58}
59
60
61AliCaloFitResults
62AliCaloRawAnalyzerFastFit::Evaluate( const vector<AliCaloBunchInfo> &bunchvector,
63 const UInt_t altrocfg1, const UInt_t altrocfg2 )
64{
65 // Comment
66
67 short maxampindex; //index of maximum amplitude
68 short maxamp; //Maximum amplitude
69 int index = SelectBunch( bunchvector, &maxampindex, &maxamp );
70
71 if( index >= 0)
72 {
73 Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed );
f57baa2d 74 Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed );
3b8fd9fe 75 short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1);
2cd0ffda 76
77 if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then)
78 {
168c7b3c 79 return AliCaloFitResults( maxamp, ped, Algo::kCrude, maxf, timebinOffset);
2cd0ffda 80 }
81 else if ( maxf >= fAmpCut ) // no if statement needed really; keep for readability
e37e3c84 82 {
2cd0ffda 83 int first = 0;
84 int last = 0;
85 int maxrev = maxampindex - bunchvector.at(index).GetStartBin();
86
92d9f317 87 SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev , &first, &last, fFitArrayCut);
88
3b8fd9fe 89 int nsamples = last - first + 1;
e37e3c84 90
e37e3c84 91 if( ( nsamples ) >= fNsampleCut )
92 {
93 Double_t ordered[1008];
94
e211d601 95 for(int i=0; i < nsamples ; i++ )
96 {
97 ordered[i] = fReversed[first + i];
98 }
e37e3c84 99
100 Double_t eSignal = 1; // nominal 1 ADC error
101 Double_t dAmp = maxf;
102 Double_t eAmp = 0;
507751ce 103 Double_t dTime0 = 0;
e37e3c84 104 Double_t eTime = 0;
105 Double_t chi2 = 0;
e211d601 106 Double_t dTau = 2.35; // time-bin units
e37e3c84 107
e37e3c84 108 AliCaloFastAltroFitv0::FastFit(fXAxis, ordered , nsamples,
507751ce 109 eSignal, dTau, dAmp, eAmp, dTime0, eTime, chi2);
e37e3c84 110
507751ce 111 Double_t dTimeMax = dTime0 + timebinOffset - (maxrev - first) // abs. t0
112 + dTau; // +tau, makes sum tmax
168c7b3c 113 return AliCaloFitResults(maxamp, ped, Ret::kFitPar, dAmp, dTimeMax, timebinOffset, chi2, Ret::kDummy,
114 Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
f57baa2d 115 } // samplecut
116 else
117 {
2cd0ffda 118 Float_t chi2 = CalculateChi2(maxf, maxrev, first, last);
119 Int_t ndf = last - first - 1; // nsamples - 2
168c7b3c 120 return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset,
121 timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) );
e37e3c84 122 }
f57baa2d 123 } // ampcut
f57baa2d 124 } // bunch index
125
168c7b3c 126 return AliCaloFitResults( Ret::kInvalid , Ret::kInvalid );
127
128 // return AliCaloFitResults( kInvalid , kInvalid,
129 // kInvalid, kInvalid, kInvalid );
130
e37e3c84 131}