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 *
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 *
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 **************************************************************************/
21 // Extraction of Amplitude and peak
22 // position using special algorithm
23 // from Alexei Pavlinov
27 #include "AliCaloRawAnalyzerFastFit.h"
28 #include "AliCaloFastAltroFitv0.h"
29 #include "AliCaloFitResults.h"
30 #include "AliCaloBunchInfo.h"
35 #include "AliCaloConstants.h"
37 ClassImp( AliCaloRawAnalyzerFastFit )
40 AliCaloRawAnalyzerFastFit::AliCaloRawAnalyzerFastFit() : AliCaloRawAnalyzerFitter("Fast Fit (Alexei)", "FF")
43 fAlgo= Algo::kFastFit;
47 AliCaloRawAnalyzerFastFit::Evaluate( const vector<AliCaloBunchInfo> &bunchvector,
48 UInt_t altrocfg1, UInt_t altrocfg2 )
52 short maxampindex; //index of maximum amplitude
53 short maxamp; //Maximum amplitude
54 int index = SelectBunch( bunchvector, &maxampindex, &maxamp );
58 Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed );
59 Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed );
60 short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1);
62 if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then)
64 return AliCaloFitResults( maxamp, ped, Algo::kCrude, maxf, timebinOffset*TIMEBINWITH); //Time scale 19/08/2014 (Antônio)
66 else if ( maxf >= fAmpCut ) // no if statement needed really; keep for readability
70 int maxrev = maxampindex - bunchvector.at(index).GetStartBin();
72 SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev , &first, &last, fFitArrayCut);
74 int nsamples = last - first + 1;
76 if( ( nsamples ) >= fNsampleCut )
78 Double_t ordered[1008];
80 for(int i=0; i < nsamples ; i++ )
82 ordered[i] = fReversed[first + i];
85 Double_t eSignal = 1; // nominal 1 ADC error
91 Double_t dTau = 2.35; // time-bin units
93 AliCaloFastAltroFitv0::FastFit(fXaxis, ordered , nsamples,
94 eSignal, dTau, dAmp, eAmp, dTime0, eTime, chi2);
95 Double_t dTimeMax = dTime0 + timebinOffset - (maxrev - first) // abs. t0
96 + dTau; // +tau, makes sum tmax
98 return AliCaloFitResults(maxamp,ped,Ret::kFitPar,dAmp,dTimeMax*TIMEBINWITH,timebinOffset,chi2,Ret::kDummy,Ret::kDummy,AliCaloFitSubarray(index,maxrev,first,last)); //Time scale 19/08/2014 (Antônio)
103 Float_t chi2 = CalculateChi2(maxf, maxrev, first, last);
104 Int_t ndf = last - first - 1; // nsamples - 2
105 return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset*TIMEBINWITH, timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); //Time scale 19/08/2014 (Antônio)
110 return AliCaloFitResults( Ret::kInvalid , Ret::kInvalid );