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ROCCalc.h
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1#ifndef ROOT_TMVA_ROCCalc
2#define ROOT_TMVA_ROCCalc
3
4#include "RtypesCore.h"
5
6class TList;
7class TTree;
8class TString;
9class TH1;
10class TH1D;
11class TH2;
12class TH2F;
13class TSpline;
14
15namespace TMVA {
16
17 class MsgLogger;
18
19
20 class ROCCalc {
21
22 public:
23 ROCCalc(TH1* mvaS, TH1* mvaB);
24
25 ~ROCCalc();
26
27
28 TH1D* GetROC();
29 // return the signal eff for a given backgr. efficiency
30 Double_t GetEffSForEffBof(Double_t effBref, Double_t &effSerr);
31 // return the cut value
33 // return the area under the ROC curve
35 // return the statistical significance as function of the mva cut value
36 TH1* GetSignificance( Int_t nStot, Int_t nBtot);
37 TH1* GetPurity(Int_t nStot, Int_t nBtot);
38
39 void ApplySignalAndBackgroundStyle( TH1* sig, TH1* bkg, TH1* any = nullptr );
40
43
44 //false if is found some error in mvaS or mvaB
47
48 private:
51 Int_t fMaxIter; ///< maximum number of iterations
52 Double_t fAbsTol; ///< absolute tolerance deviation
53
54 Bool_t fStatus; ///< false if is found some error in mvaS or mvaB
55
58
59 TH1* fmvaS, *fmvaB; ///< the input mva distributions
60 TH1* fmvaSpdf, *fmvaBpdf; ///< the normalized (and rebinned) input mva distributions
61 Float_t fXmin, fXmax; ///< min and max of the mva distribution
62 Double_t fNevtS; ///< number of signal events (used in error calculation)
63 Int_t fCutOrientation; ///< +1 if larger mva value means more signal like, -1 otherwise
65 TSpline* fSplmvaCumS, *fSplmvaCumB; ///< spline of cumulated mva distributions
74
75 Double_t fSignalCut; ///< MVA cut value for last demanded background rejection or signal efficiency
76
77 mutable MsgLogger* fLogger; //! message logger
78 MsgLogger& Log() const { return *fLogger; }
79
80 };
81}
82#endif
float Float_t
Definition: RtypesCore.h:57
double Double_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:100
1-D histogram with a double per channel (see TH1 documentation)}
Definition: TH1.h:620
TH1 is the base class of all histogram classes in ROOT.
Definition: TH1.h:58
2-D histogram with a float per channel (see TH1 documentation)}
Definition: TH2.h:257
Service class for 2-D histogram classes.
Definition: TH2.h:30
A doubly linked list.
Definition: TList.h:38
ostringstream derivative to redirect and format output
Definition: MsgLogger.h:57
TH1 * GetMvaSpdf()
Definition: ROCCalc.h:41
Double_t fSignalCut
MVA cut value for last demanded background rejection or signal efficiency.
Definition: ROCCalc.h:75
Double_t Root(Double_t)
Root finding using Brents algorithm; taken from CERNLIB function RZERO.
Definition: ROCCalc.cxx:348
TH1 * fmvaScumul
Definition: ROCCalc.h:67
void ResetStatus()
Definition: ROCCalc.h:46
TH1 * fmvaBcumul
Definition: ROCCalc.h:67
TSpline * fSplS
Definition: ROCCalc.h:64
TH1 * fPurity
Definition: ROCCalc.h:70
Bool_t GetStatus()
Definition: ROCCalc.h:45
void ApplySignalAndBackgroundStyle(TH1 *sig, TH1 *bkg, TH1 *any=nullptr)
Definition: ROCCalc.cxx:113
Double_t GetROCIntegral()
code to compute the area under the ROC ( rej-vs-eff ) curve
Definition: ROCCalc.cxx:268
Float_t fXmax
min and max of the mva distribution
Definition: ROCCalc.h:61
Float_t fXmin
Definition: ROCCalc.h:61
TSpline * fSplmvaCumB
spline of cumulated mva distributions
Definition: ROCCalc.h:65
TH1D * rejBvsS
Definition: ROCCalc.h:72
Int_t fnBtot
Definition: ROCCalc.h:68
TSpline * fSplmvaCumS
Definition: ROCCalc.h:65
Int_t fnStot
Definition: ROCCalc.h:68
Int_t fMaxIter
maximum number of iterations
Definition: ROCCalc.h:51
TSpline * fSpleffBvsS
Definition: ROCCalc.h:66
Bool_t fStatus
false if is found some error in mvaS or mvaB
Definition: ROCCalc.h:54
Double_t GetSignalReferenceCut()
Definition: ROCCalc.h:32
Int_t fCutOrientation
+1 if larger mva value means more signal like, -1 otherwise
Definition: ROCCalc.h:63
TH1 * GetPurity(Int_t nStot, Int_t nBtot)
Definition: ROCCalc.cxx:429
Double_t GetEffSForEffBof(Double_t effBref, Double_t &effSerr)
get the signal efficiency for a particular background efficiency that will be the value of the effici...
Definition: ROCCalc.cxx:292
ROCCalc(TH1 *mvaS, TH1 *mvaB)
Definition: ROCCalc.cxx:42
TH1 * GetSignificance(Int_t nStot, Int_t nBtot)
Definition: ROCCalc.cxx:440
TH1D * effBvsS
Definition: ROCCalc.h:71
MsgLogger & Log() const
message logger
Definition: ROCCalc.h:78
TH1 * fmvaSpdf
Definition: ROCCalc.h:60
TH1D * GetROC()
get the ROC curve
Definition: ROCCalc.cxx:178
TH1 * fmvaS
Definition: ROCCalc.h:59
~ROCCalc()
destructor
Definition: ROCCalc.cxx:160
TH1 * fmvaB
the input mva distributions
Definition: ROCCalc.h:59
TH1 * GetMvaBpdf()
Definition: ROCCalc.h:42
TH1D * inveffBvsS
Definition: ROCCalc.h:73
TSpline * fSplB
Definition: ROCCalc.h:64
Bool_t fUseSplines
Definition: ROCCalc.h:57
TH1 * fSignificance
Definition: ROCCalc.h:69
UInt_t fNbins
Definition: ROCCalc.h:56
MsgLogger * fLogger
Definition: ROCCalc.h:77
Double_t fAbsTol
absolute tolerance deviation
Definition: ROCCalc.h:52
TH1 * fmvaBpdf
the normalized (and rebinned) input mva distributions
Definition: ROCCalc.h:60
Double_t GetEffForRoot(Double_t theCut)
returns efficiency as function of cut
Definition: ROCCalc.cxx:323
Double_t fNevtS
number of signal events (used in error calculation)
Definition: ROCCalc.h:62
Base class for spline implementation containing the Draw/Paint methods.
Definition: TSpline.h:31
Basic string class.
Definition: TString.h:136
A TTree represents a columnar dataset.
Definition: TTree.h:79
create variable transformations