Addition of gaussian truncated at different left and right distances (useful for...
[u/mrichter/AliRoot.git] / STEER / AliMathBase.h
... / ...
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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"
9#include "TVectorD.h"
10#include "TMatrixD.h"
11#include "TGraph2D.h"
12#include "TGraph.h"
13
14class TH1F;
15class TH3;
16
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);
26 static void TruncatedMean(TH1F * his, TVectorD *param, Float_t down=0, Float_t up=1.0, Bool_t verbose=kFALSE);
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);
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);
31
32 static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t cutat);
33 static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t leftCut, Double_t rightCut);
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
38 //
39 // TestFunctions:
40 //
41 static void TestGausFit(Int_t nhistos=5000);
42
43 ClassDef(AliMathBase,0) // Various mathematical tools for physics analysis - which are not included in ROOT TMath
44
45};
46#endif