Adding a TStatToolkit
[u/mrichter/AliRoot.git] / STAT / TStatToolkit.h
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21f3a443 1#ifndef ALIMATHBASE_H
2#define TSTATTOOLKIT_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;
16class TString;
17class TTree;
18
19class TStatToolkit : public TObject
20{
21 public:
22 TStatToolkit();
23 virtual ~TStatToolkit();
24 //
25 //
26 //
27 static void EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh);
28 static void EvaluateUniExternal(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh, Float_t externalfactor=1);
29 static Int_t Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down);
30 //
31 // HISTOGRAMS TOOLS
32 //
33 static void TruncatedMean(TH1F * his, TVectorD *param, Float_t down=0, Float_t up=1.0, Bool_t verbose=kFALSE);
34 static void LTM(TH1F * his, TVectorD *param=0 , Float_t fraction=1, Bool_t verbose=kFALSE);
35 static Double_t FitGaus(TH1F* his, TVectorD *param=0, TMatrixD *matrix=0, Float_t xmin=0, Float_t xmax=0, Bool_t verbose=kFALSE);
36 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);
37 static Float_t GetCOG(Short_t *arr, Int_t nBins, Float_t xMin, Float_t xMax, Float_t *rms=0, Float_t *sum=0);
38
39 static TGraph2D * MakeStat2D(TH3 * his, Int_t delta0, Int_t delta1, Int_t type);
40 static TGraph * MakeStat1D(TH3 * his, Int_t delta1, Int_t type);
41
42 //
43 // Fitting function
44 //
45 static TString* FitPlane(TTree * tree, const char* drawCommand, const char* formula, const char* cuts, Double_t & chi2, Int_t &npoints, TVectorD &fitParam, TMatrixD &covMatrix, Int_t start=0, Int_t stop=10000000);
46
47
48
49
50 //
51 // TestFunctions:
52 //
53 static void TestGausFit(Int_t nhistos=5000);
54
55 ClassDef(TStatToolkit,0) // Various mathematical tools for physics analysis - which are not included in ROOT TMath
56
57};
58#endif