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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 | ||
e37e3c84 | 44 | AliCaloRawAnalyzerLMS::AliCaloRawAnalyzerLMS() : AliCaloRawAnalyzer("Chi Square Fit"), |
57839add | 45 | fkEulerSquared(7.389056098930650227), |
46 | fSig(0), | |
47 | fTf1(0) | |
d655d7dd | 48 | { |
49 | //comment | |
50 | for(int i=0; i < MAXSAMPLES; i++) | |
51 | { | |
52 | fXaxis[i] = i; | |
53 | } | |
54 | ||
55 | fTf1 = new TF1( "myformula", "[0]*((x - [1])/2.35)^2*exp(-2*(x -[1])/2.35)", 0, 30 ); | |
56 | // fTf1 = new TF1( "myformula", "[0]*((x - [1])/[2])^[3]*exp(-[3]*(x -[1])/[2])", 0, 30 ); | |
57 | ||
58 | } | |
59 | ||
60 | ||
57839add | 61 | AliCaloRawAnalyzerLMS::~AliCaloRawAnalyzerLMS() |
d655d7dd | 62 | { |
63 | delete fTf1; | |
64 | } | |
65 | ||
66 | ||
67 | ||
57839add | 68 | AliCaloFitResults |
69 | AliCaloRawAnalyzerLMS::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
d655d7dd | 70 | { |
71 | // Extracting signal parameters using fitting | |
72 | short maxampindex; //index of maximum amplitude | |
73 | short maxamp; //Maximum amplitude | |
74 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); | |
75 | ||
76 | if( index >= 0) | |
77 | { | |
78 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
79 | int first; | |
80 | int last; | |
81 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
82 | ||
83 | if ( maxf > fAmpCut ) | |
84 | { | |
3b8fd9fe | 85 | short maxrev = maxampindex - bunchvector.at(index).GetStartBin(); |
86 | short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1); | |
87 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last); | |
88 | int nsamples = last - first + 1; | |
d655d7dd | 89 | |
90 | if( ( nsamples ) > fNsampleCut ) | |
91 | { | |
92 | ||
3b8fd9fe | 93 | TGraph *graph = new TGraph( nsamples, fXaxis, &fReversed[first] ); |
d655d7dd | 94 | fTf1->SetParameter(0, maxf*fkEulerSquared ); |
57839add | 95 | fTf1->SetParameter(1, 0.2); |
d655d7dd | 96 | // fTf1->SetParameter(2, 2); |
97 | // fTf1->SetParameter(2, 3); | |
98 | ||
57839add | 99 | // return AliCaloFitResults( -1 , -1 , -1, -1, -1, -1 , -1); |
d655d7dd | 100 | |
101 | Short_t tmpStatus = graph->Fit(fTf1, "Q0RW"); | |
102 | ||
57839add | 103 | // return AliCaloFitResults( -1 , -1 , -1, -1, -1, -1 , -1); |
d655d7dd | 104 | |
105 | if( fVerbose == true ) | |
106 | { | |
57839add | 107 | AliCaloRawAnalyzer::PrintBunch( bunchvector.at(index) ); |
d655d7dd | 108 | PrintFitResult( fTf1 ) ; |
109 | } | |
110 | ||
111 | delete graph; | |
57839add | 112 | return AliCaloFitResults( maxamp, ped , tmpStatus, |
d655d7dd | 113 | fTf1->GetParameter(0)/fkEulerSquared, |
3b8fd9fe | 114 | fTf1->GetParameter(1) + timebinOffset, |
d655d7dd | 115 | fTf1->GetChisquare(), |
116 | fTf1->GetNDF()); | |
117 | ||
118 | ||
119 | // delete graph; | |
120 | ||
121 | } | |
122 | else | |
123 | { | |
57839add | 124 | return AliCaloFitResults( maxamp, ped, -1, maxf, -1, -1, -1 ); |
d655d7dd | 125 | } |
126 | } | |
127 | else | |
128 | { | |
57839add | 129 | return AliCaloFitResults( maxamp , ped, -1, maxf, -1, -1, -1 ); |
d655d7dd | 130 | } |
131 | } | |
132 | else | |
133 | { | |
57839add | 134 | return AliCaloFitResults( -99, -99 ); |
d655d7dd | 135 | } |
136 | ||
57839add | 137 | return AliCaloFitResults( -99, -99 ); |
d655d7dd | 138 | |
139 | } | |
140 | ||
141 | ||
142 | void | |
57839add | 143 | AliCaloRawAnalyzerLMS::PrintFitResult(const TF1 *f) const |
d655d7dd | 144 | { |
145 | //comment | |
146 | cout << endl; | |
147 | cout << __FILE__ << __LINE__ << "Using this samplerange we get" << endl; | |
148 | cout << __FILE__ << __LINE__ << "AMPLITUDE = " << f->GetParameter(0)/fkEulerSquared << ",.. !!!!" << endl; | |
149 | cout << __FILE__ << __LINE__ << "TOF = " << f->GetParameter(1) << ",.. !!!!" << endl; | |
150 | cout << __FILE__ << __LINE__ << "NDF = " << f->GetNDF() << ",.. !!!!" << endl; | |
151 | // cout << __FILE__ << __LINE__ << "STATUS = " << f->GetStatus() << ",.. !!!!" << endl << endl; | |
152 | cout << endl << endl; | |
153 | } |