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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" | |
168c7b3c | 31 | #include "AliCaloConstants.h" |
de39a0ff | 32 | |
33 | using namespace std; | |
34 | ||
35 | ||
36 | #define BAD 4 //CRAP PTH | |
37 | ||
38 | ClassImp( AliCaloRawAnalyzerFakeALTRO ) | |
39 | ||
40 | ||
41 | AliCaloRawAnalyzerFakeALTRO::AliCaloRawAnalyzerFakeALTRO() : AliCaloRawAnalyzer("Chi Square Fit", "LMS"), | |
42 | fkEulerSquared(7.389056098930650227), | |
43 | fTf1(0), | |
44 | fTau(2.35), | |
45 | fFixTau(kTRUE) | |
46 | { | |
47 | //comment | |
92d9f317 | 48 | for(int i=0; i < ALTROMAXSAMPLES; i++) |
de39a0ff | 49 | { |
50 | fXaxis[i] = i; | |
51 | } | |
52 | ||
53 | fTf1 = new TF1( "myformula", "[0]*((x - [1])/[2])^2*exp(-2*(x -[1])/[2])", 0, 30 ); | |
54 | if (fFixTau) { | |
55 | fTf1->FixParameter(2, fTau); | |
56 | } | |
57 | else { | |
58 | fTf1->ReleaseParameter(2); // allow par. to vary | |
59 | fTf1->SetParameter(2, fTau); | |
60 | } | |
61 | ||
62 | } | |
63 | ||
64 | ||
65 | AliCaloRawAnalyzerFakeALTRO::~AliCaloRawAnalyzerFakeALTRO() | |
66 | { | |
67 | delete fTf1; | |
68 | } | |
69 | ||
70 | ||
71 | ||
72 | AliCaloFitResults | |
73 | AliCaloRawAnalyzerFakeALTRO::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
74 | { | |
75 | // Extracting signal parameters using fitting | |
76 | short maxampindex; //index of maximum amplitude | |
77 | short maxamp; //Maximum amplitude | |
78 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); | |
79 | ||
80 | if( index >= 0) | |
81 | { | |
82 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
83 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
84 | short maxrev = maxampindex - bunchvector.at(index).GetStartBin(); | |
85 | // timebinOffset is timebin value at maximum (maxrev) | |
86 | short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1); | |
87 | if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then) | |
88 | { | |
168c7b3c | 89 | return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset); |
de39a0ff | 90 | } |
91 | else if ( maxf >= fAmpCut ) | |
92 | { | |
93 | int first = 0; | |
94 | int last = 0; | |
92d9f317 | 95 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last, fFitArrayCut ); |
de39a0ff | 96 | int nsamples = last - first + 1; |
97 | ||
98 | if( ( nsamples ) >= fNsampleCut ) | |
99 | { | |
100 | Float_t tmax = (maxrev - first); // local tmax estimate | |
101 | TGraph *graph = new TGraph( nsamples, fXaxis, &fReversed[first] ); | |
102 | fTf1->SetParameter(0, maxf*fkEulerSquared ); | |
103 | fTf1->SetParameter(1, tmax - fTau); | |
104 | // set rather loose parameter limits | |
105 | fTf1->SetParLimits(0, 0.5*maxf*fkEulerSquared, 2*maxf*fkEulerSquared ); | |
106 | fTf1->SetParLimits(1, tmax - fTau - 4, tmax - fTau + 4); | |
107 | ||
108 | if (fFixTau) { | |
109 | fTf1->FixParameter(2, fTau); | |
110 | } | |
111 | else { | |
112 | fTf1->ReleaseParameter(2); // allow par. to vary | |
113 | fTf1->SetParameter(2, fTau); | |
114 | } | |
115 | ||
116 | Short_t tmpStatus = 0; | |
117 | try { | |
118 | tmpStatus = graph->Fit(fTf1, "Q0RW"); | |
119 | } | |
120 | catch (const std::exception & e) { | |
121 | AliError( Form("TGraph Fit exception %s", e.what()) ); | |
168c7b3c | 122 | return AliCaloFitResults( maxamp, ped, Ret::kNoFit, maxf, timebinOffset, |
123 | timebinOffset, Ret::kDummy, Ret::kDummy, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
de39a0ff | 124 | } |
125 | ||
126 | if( fVerbose == true ) | |
127 | { | |
128 | AliCaloRawAnalyzer::PrintBunch( bunchvector.at(index) ); | |
129 | PrintFitResult( fTf1 ) ; | |
130 | } | |
131 | // global tmax | |
132 | tmax = fTf1->GetParameter(1) + timebinOffset - (maxrev - first) // abs. t0 | |
133 | + fTf1->GetParameter(2); // +tau, makes sum tmax | |
134 | ||
135 | delete graph; | |
168c7b3c | 136 | return AliCaloFitResults( maxamp, ped , Ret::kFitPar, |
de39a0ff | 137 | fTf1->GetParameter(0)/fkEulerSquared, |
138 | tmax, | |
139 | timebinOffset, | |
140 | fTf1->GetChisquare(), | |
141 | fTf1->GetNDF(), | |
168c7b3c | 142 | Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); |
de39a0ff | 143 | |
144 | // delete graph; | |
145 | ||
146 | } | |
147 | else | |
148 | { | |
149 | Float_t chi2 = CalculateChi2(maxf, maxrev, first, last); | |
150 | Int_t ndf = last - first - 1; // nsamples - 2 | |
168c7b3c | 151 | return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset, |
152 | timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
de39a0ff | 153 | } |
154 | } // ampcut | |
155 | } | |
168c7b3c | 156 | return AliCaloFitResults( Ret::kInvalid, Ret::kInvalid ); |
de39a0ff | 157 | |
158 | } | |
159 | ||
160 | ||
161 | void | |
162 | AliCaloRawAnalyzerFakeALTRO::PrintFitResult(const TF1 *f) const | |
163 | { | |
164 | //comment | |
165 | cout << endl; | |
166 | cout << __FILE__ << __LINE__ << "Using this samplerange we get" << endl; | |
167 | cout << __FILE__ << __LINE__ << "AMPLITUDE = " << f->GetParameter(0)/fkEulerSquared << ",.. !!!!" << endl; | |
168 | cout << __FILE__ << __LINE__ << "TOF = " << f->GetParameter(1) << ",.. !!!!" << endl; | |
169 | cout << __FILE__ << __LINE__ << "NDF = " << f->GetNDF() << ",.. !!!!" << endl; | |
170 | // cout << __FILE__ << __LINE__ << "STATUS = " << f->GetStatus() << ",.. !!!!" << endl << endl; | |
171 | cout << endl << endl; | |
172 | } | |
173 |