00001 // @(#)root/tmva $Id: SdivSqrtSplusB.h 37986 2011-02-04 21:42:15Z pcanal $ 00002 // Author: Andreas Hoecker, Joerg Stelzer, Helge Voss, Kai Voss 00003 00004 /********************************************************************************** 00005 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis * 00006 * Package: TMVA * 00007 * Class : SdivSqrtSplusB * 00008 * Web : http://tmva.sourceforge.net * 00009 * * 00010 * Description: Implementation of the SdivSqrtSplusB as separation criterion * 00011 * S/sqrt(S + B) * 00012 * * 00013 * Authors (alphabetical): * 00014 * Andreas Hoecker <Andreas.Hocker@cern.ch> - CERN, Switzerland * 00015 * Helge Voss <Helge.Voss@cern.ch> - MPI-K Heidelberg, Germany * 00016 * Kai Voss <Kai.Voss@cern.ch> - U. of Victoria, Canada * 00017 * * 00018 * Copyright (c) 2005: * 00019 * CERN, Switzerland * 00020 * U. of Victoria, Canada * 00021 * Heidelberg U., Germany * 00022 * * 00023 * Redistribution and use in source and binary forms, with or without * 00024 * modification, are permitted according to the terms listed in LICENSE * 00025 * (http://tmva.sourceforge.net/LICENSE) * 00026 **********************************************************************************/ 00027 00028 #ifndef ROOT_TMVA_SdivSqrtSplusB 00029 #define ROOT_TMVA_SdivSqrtSplusB 00030 00031 ////////////////////////////////////////////////////////////////////////// 00032 // // 00033 // SdivSqrtSplusB // 00034 // // 00035 // Implementation of the SdivSqrtSplusB as separation criterion // 00036 // Index = S/sqrt(S+B) (statistical significance) // 00037 // // 00038 ////////////////////////////////////////////////////////////////////////// 00039 00040 #ifndef ROOT_TMVA_SeparationBase 00041 #include "TMVA/SeparationBase.h" 00042 #endif 00043 00044 namespace TMVA { 00045 00046 class SdivSqrtSplusB : public SeparationBase { 00047 00048 public: 00049 00050 //constructor for the "statistical significance" index 00051 SdivSqrtSplusB(): SeparationBase() { fName = "StatSig"; } 00052 00053 // copy constructor 00054 SdivSqrtSplusB( const SdivSqrtSplusB& g): SeparationBase(g) {} 00055 00056 //destructor 00057 virtual ~SdivSqrtSplusB() {} 00058 00059 // return the Index (S/sqrt(S+B)) 00060 virtual Double_t GetSeparationIndex( const Double_t &s, const Double_t &b ); 00061 00062 protected: 00063 00064 ClassDef(SdivSqrtSplusB,0) // Implementation of the SdivSqrtSplusB as separation criterion 00065 }; 00066 00067 } // namespace TMVA 00068 00069 #endif 00070
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