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1 | #ifndef ALISAMPLE_H | |
2 | #define ALISAMPLE_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | // $Id$ | |
7 | ||
8 | #include <math.h> | |
9 | ||
10 | #include "Rtypes.h" | |
11 | #include "TArrayF.h" | |
12 | #include "TH1.h" | |
13 | ||
14 | class AliSample | |
15 | { | |
16 | public: | |
17 | AliSample(); // Default constructor | |
18 | virtual ~AliSample(); // Default destructor | |
19 | void Reset(); // Reset complete statistics | |
20 | void Enter(Float_t x); // Enter value for 1-dim. sample | |
21 | void Remove(Float_t x); // Remove value from 1-dim. sample | |
22 | void Enter(Float_t x, Float_t y); // Enter value for 2-dim. sample | |
23 | void Remove(Float_t x, Float_t y); // Remove value from 2-dim. sample | |
24 | void Enter(Float_t x, Float_t y, Float_t z); // Enter value for 3-dim. sample | |
25 | void Remove(Float_t x, Float_t y, Float_t z); // Remove value from 3-dim. sample | |
26 | Int_t GetDimension() const; // Provide dimension of the sample | |
27 | Int_t GetN() const; // Provide the number of entries | |
28 | Float_t GetSum(Int_t i) const; // Provide sum for i-th variable | |
29 | Float_t GetMean(Int_t i) const; // Provide mean for i-th variable | |
30 | Float_t GetVar(Int_t i) const; // Provide variance for i-th variable | |
31 | Float_t GetSigma(Int_t i) const; // Standard deviation for i-th variable | |
32 | Float_t GetCov(Int_t i, Int_t j) const; // Covariance for i-th and j-th variable | |
33 | Float_t GetCor(Int_t i, Int_t j) const; // Correlation for i-th and j-th variable | |
34 | Float_t GetMedian(Int_t i); // Provide median for i-th variable | |
35 | Float_t GetSpread(Int_t i); // Provide spread w.r.t. the median for i-th variable | |
36 | Float_t GetMinimum(Int_t i) const; // Provide the minimum value for i-th variable | |
37 | Float_t GetMaximum(Int_t i) const; // Provide the maximum value for i-th variable | |
38 | void Data(); // Stat. info for the complete sample | |
39 | void Data(Int_t i); // Stat. info for the i-th variable | |
40 | void Data(Int_t i, Int_t j) const; // Stat. info for i-th and j-th variable | |
41 | void SetStoreMode(Int_t mode=1); // Set mode for storage of all entered data | |
42 | Int_t GetStoreMode() const; // Provide storage mode of all entered data | |
43 | Double_t GetMedian(TH1* histo,Int_t mode=1) const; // Provide median from the specified 1D histogram | |
44 | Double_t GetSpread(TH1* histo,Int_t mode=1) const; // Provide spread w.r.t. the median from the 1D histo | |
45 | ||
46 | private: | |
47 | Int_t fDim; // Dimension of the sample | |
48 | Int_t fN; // Number of entries of the sample | |
49 | enum {fMaxdim=3}; // Maximum supported dimension | |
50 | char fNames[fMaxdim]; // Variable names i.e. X,Y,Z | |
51 | Float_t fSum[fMaxdim]; // Total sum for each variable | |
52 | Float_t fSum2[fMaxdim][fMaxdim]; // Total sum**2 for each variable | |
53 | void Compute(); // Compute the various quantities | |
54 | Float_t fMean[fMaxdim]; // Mean for each variable | |
55 | Float_t fVar[fMaxdim]; // Variation for each variable | |
56 | Float_t fSigma[fMaxdim]; // Standard deviation for each variable | |
57 | Float_t fCov[fMaxdim][fMaxdim]; // Covariances of pairs of variables | |
58 | Float_t fCor[fMaxdim][fMaxdim]; // Correlations of pairs of variables | |
59 | Float_t fMin[fMaxdim]; // Minimum value for each variable | |
60 | Float_t fMax[fMaxdim]; // Maximum value for each variable | |
61 | Int_t fRemove; // Flag to indicate that some entry has been removed | |
62 | Int_t fStore; // Flag to denote storage of all entered data | |
63 | TArrayF* fX; // Storage array for the 1st variable (e.g. X) | |
64 | TArrayF* fY; // Storage array for the 2nd variable (e.g. Y) | |
65 | TArrayF* fZ; // Storage array for the 3rd variable (e.g. Z) | |
66 | TArrayF* fArr; // Temp. storage array for ordering | |
67 | ||
68 | ClassDef(AliSample,0) // Statistics tools for various multi-dimensional data samples. | |
69 | }; | |
70 | #endif |