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d655d7dd | 1 | /************************************************************************** |
2 | * This file is property of and copyright by * | |
3 | * the Relativistic Heavy Ion Group (RHIG), Yale University, US, 2009 * | |
4 | * * | |
5 | * Primary Author: Per Thomas Hille <p.t.hille@fys.uio.no> * | |
6 | * * | |
7 | * Contributors are mentioned in the code where appropriate. * | |
8 | * Please report bugs to p.t.hille@fys.uio.no * | |
9 | * * | |
10 | * Permission to use, copy, modify and distribute this software and its * | |
11 | * documentation strictly for non-commercial purposes is hereby granted * | |
12 | * without fee, provided that the above copyright notice appears in all * | |
13 | * copies and that both the copyright notice and this permission notice * | |
14 | * appear in the supporting documentation. The authors make no claims * | |
15 | * about the suitability of this software for any purpose. It is * | |
16 | * provided "as is" without express or implied warranty. * | |
17 | **************************************************************************/ | |
18 | ||
19 | ||
20 | // Extraction of amplitude and peak position | |
57839add | 21 | // FRom CALO raw data using |
d655d7dd | 22 | // least square fit for the |
23 | // Moment assuming identical and | |
24 | // independent errors (equivalent with chi square) | |
25 | // | |
26 | ||
57839add | 27 | #include "AliCaloRawAnalyzerLMS.h" |
28 | #include "AliCaloBunchInfo.h" | |
29 | #include "AliCaloFitResults.h" | |
d655d7dd | 30 | #include "AliLog.h" |
31 | #include "TMath.h" | |
32 | #include <iostream> | |
33 | #include "TF1.h" | |
34 | #include "TGraph.h" | |
35 | ||
36 | using namespace std; | |
37 | ||
38 | ||
39 | #define BAD 4 //CRAP PTH | |
e37e3c84 | 40 | |
41 | ClassImp( AliCaloRawAnalyzerLMS ) | |
d655d7dd | 42 | |
43 | ||
48a2e3eb | 44 | AliCaloRawAnalyzerLMS::AliCaloRawAnalyzerLMS() : AliCaloRawAnalyzer("Chi Square Fit", "LMS"), |
57839add | 45 | fkEulerSquared(7.389056098930650227), |
f57baa2d | 46 | fTf1(0), |
47 | fTau(2.35), | |
48 | fFixTau(kTRUE) | |
d655d7dd | 49 | { |
50 | //comment | |
51 | for(int i=0; i < MAXSAMPLES; i++) | |
52 | { | |
53 | fXaxis[i] = i; | |
54 | } | |
55 | ||
f57baa2d | 56 | fTf1 = new TF1( "myformula", "[0]*((x - [1])/[2])^2*exp(-2*(x -[1])/[2])", 0, 30 ); |
57 | if (fFixTau) { | |
58 | fTf1->FixParameter(2, fTau); | |
59 | } | |
60 | else { | |
61 | fTf1->ReleaseParameter(2); // allow par. to vary | |
62 | fTf1->SetParameter(2, fTau); | |
63 | } | |
64 | ||
d655d7dd | 65 | } |
66 | ||
67 | ||
57839add | 68 | AliCaloRawAnalyzerLMS::~AliCaloRawAnalyzerLMS() |
d655d7dd | 69 | { |
70 | delete fTf1; | |
71 | } | |
72 | ||
73 | ||
74 | ||
57839add | 75 | AliCaloFitResults |
76 | AliCaloRawAnalyzerLMS::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
d655d7dd | 77 | { |
78 | // Extracting signal parameters using fitting | |
79 | short maxampindex; //index of maximum amplitude | |
80 | short maxamp; //Maximum amplitude | |
81 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); | |
82 | ||
83 | if( index >= 0) | |
84 | { | |
85 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
86 | int first; | |
87 | int last; | |
88 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
f57baa2d | 89 | short maxrev = maxampindex - bunchvector.at(index).GetStartBin(); |
90 | short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1); | |
d655d7dd | 91 | |
92 | if ( maxf > fAmpCut ) | |
93 | { | |
3b8fd9fe | 94 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last); |
95 | int nsamples = last - first + 1; | |
d655d7dd | 96 | |
f57baa2d | 97 | if( ( nsamples ) >= fNsampleCut ) |
d655d7dd | 98 | { |
99 | ||
3b8fd9fe | 100 | TGraph *graph = new TGraph( nsamples, fXaxis, &fReversed[first] ); |
d655d7dd | 101 | fTf1->SetParameter(0, maxf*fkEulerSquared ); |
57839add | 102 | fTf1->SetParameter(1, 0.2); |
f57baa2d | 103 | |
104 | if (fFixTau) { | |
105 | fTf1->FixParameter(2, fTau); | |
106 | } | |
107 | else { | |
108 | fTf1->ReleaseParameter(2); // allow par. to vary | |
109 | fTf1->SetParameter(2, fTau); | |
110 | } | |
d655d7dd | 111 | |
112 | Short_t tmpStatus = graph->Fit(fTf1, "Q0RW"); | |
113 | ||
d655d7dd | 114 | if( fVerbose == true ) |
115 | { | |
57839add | 116 | AliCaloRawAnalyzer::PrintBunch( bunchvector.at(index) ); |
d655d7dd | 117 | PrintFitResult( fTf1 ) ; |
118 | } | |
119 | ||
120 | delete graph; | |
57839add | 121 | return AliCaloFitResults( maxamp, ped , tmpStatus, |
f57baa2d | 122 | fTf1->GetParameter(0)/fkEulerSquared, |
123 | fTf1->GetParameter(1) + timebinOffset, | |
124 | fTf1->GetChisquare(), | |
125 | fTf1->GetNDF(), | |
126 | AliCaloFitResults::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
127 | ||
d655d7dd | 128 | // delete graph; |
129 | ||
130 | } | |
131 | else | |
132 | { | |
f57baa2d | 133 | return AliCaloFitResults( maxamp, ped, AliCaloFitResults::kNoFit, maxf, maxrev+timebinOffset, AliCaloFitResults::kNoFit, AliCaloFitResults::kNoFit, |
134 | AliCaloFitResults::kNoFit, AliCaloFitSubarray(index, maxrev, first, last) ); | |
d655d7dd | 135 | } |
136 | } | |
137 | else | |
138 | { | |
f57baa2d | 139 | return AliCaloFitResults( maxamp , ped, AliCaloFitResults::kNoFit, maxf, maxrev+timebinOffset, AliCaloFitResults::kNoFit, AliCaloFitResults::kNoFit); |
d655d7dd | 140 | } |
141 | } | |
d655d7dd | 142 | |
f57baa2d | 143 | return AliCaloFitResults( AliCaloFitResults::kInvalid, AliCaloFitResults::kInvalid ); |
d655d7dd | 144 | |
145 | } | |
146 | ||
147 | ||
148 | void | |
57839add | 149 | AliCaloRawAnalyzerLMS::PrintFitResult(const TF1 *f) const |
d655d7dd | 150 | { |
151 | //comment | |
152 | cout << endl; | |
153 | cout << __FILE__ << __LINE__ << "Using this samplerange we get" << endl; | |
154 | cout << __FILE__ << __LINE__ << "AMPLITUDE = " << f->GetParameter(0)/fkEulerSquared << ",.. !!!!" << endl; | |
155 | cout << __FILE__ << __LINE__ << "TOF = " << f->GetParameter(1) << ",.. !!!!" << endl; | |
156 | cout << __FILE__ << __LINE__ << "NDF = " << f->GetNDF() << ",.. !!!!" << endl; | |
157 | // cout << __FILE__ << __LINE__ << "STATUS = " << f->GetStatus() << ",.. !!!!" << endl << endl; | |
158 | cout << endl << endl; | |
159 | } | |
f57baa2d | 160 |