Fixes for bug #52499: Field polarities inconsistiency
[u/mrichter/AliRoot.git] / STEER / AliMathBase.h
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284050f7 1#ifndef ALIMATHBASE_H
2#define ALIMATHBASE_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6
7
8#include "TObject.h"
f6659a9d 9#include "TVectorD.h"
10#include "TMatrixD.h"
3392b4c9 11#include "TGraph2D.h"
12#include "TGraph.h"
284050f7 13
f6659a9d 14class TH1F;
3392b4c9 15class TH3;
16
284050f7 17
18class AliMathBase : public TObject
19{
20 public:
21 AliMathBase();
22 virtual ~AliMathBase();
23 static void EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh);
24 static void EvaluateUniExternal(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh, Float_t externalfactor=1);
25 static Int_t Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down);
09a29b67 26 static void TruncatedMean(TH1F * his, TVectorD *param, Float_t down=0, Float_t up=1.0, Bool_t verbose=kFALSE);
f6659a9d 27 static void LTM(TH1F * his, TVectorD *param=0 , Float_t fraction=1, Bool_t verbose=kFALSE);
28 static Double_t FitGaus(TH1F* his, TVectorD *param=0, TMatrixD *matrix=0, Float_t xmin=0, Float_t xmax=0, Bool_t verbose=kFALSE);
5f645a6e 29 static Double_t FitGaus(Float_t *arr, Int_t nBins, Float_t xMin, Float_t xMax, TVectorD *param=0, TMatrixD *matrix=0, Bool_t verbose=kFALSE);
30 static Float_t GetCOG(Short_t *arr, Int_t nBins, Float_t xMin, Float_t xMax, Float_t *rms=0, Float_t *sum=0);
5608e15a 31
09a29b67 32 static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t cutat);
4c5881a0 33 static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t leftCut, Double_t rightCut);
3392b4c9 34
35 static TGraph2D * MakeStat2D(TH3 * his, Int_t delta0, Int_t delta1, Int_t type);
36 static TGraph * MakeStat1D(TH3 * his, Int_t delta1, Int_t type);
37
5608e15a 38 //
39 // TestFunctions:
40 //
41 static void TestGausFit(Int_t nhistos=5000);
f6d87824 42
43 //
44 // Bethe-Bloch formula parameterizations
45 //
46 static Double_t BetheBlochAleph(Double_t bg,
47 Double_t kp1=0.76176e-1,
48 Double_t kp2=10.632,
49 Double_t kp3=0.13279e-4,
50 Double_t kp4=1.8631,
51 Double_t kp5=1.9479
52 );
f6659a9d 53
284050f7 54 ClassDef(AliMathBase,0) // Various mathematical tools for physics analysis - which are not included in ROOT TMath
55
56};
57#endif