00001 // @(#)root/tmva $Id: Interval.h 37986 2011-02-04 21:42:15Z pcanal $ 00002 // Author: Peter Speckmayer 00003 00004 /********************************************************************************** 00005 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis * 00006 * Package: TMVA * 00007 * Class : Interval * 00008 * Web : http://tmva.sourceforge.net * 00009 * * 00010 * Description: * 00011 * Generic range definition (used, eg, in genetic algorithm) * 00012 * * 00013 * Authors (alphabetical): * 00014 * Peter Speckmayer <speckmay@mail.cern.ch> - CERN, Switzerland * 00015 * * 00016 * Copyright (c) 2005: * 00017 * CERN, Switzerland * 00018 * MPI-K Heidelberg, Germany * 00019 * * 00020 * Redistribution and use in source and binary forms, with or without * 00021 * modification, are permitted according to the terms listed in LICENSE * 00022 * (http://tmva.sourceforge.net/LICENSE) * 00023 **********************************************************************************/ 00024 00025 #ifndef ROOT_TMVA_Interval 00026 #define ROOT_TMVA_Interval 00027 00028 ////////////////////////////////////////////////////////////////////////////// 00029 // // 00030 // Interval // 00031 // // 00032 // Interval definition, continuous and discrete // 00033 // // 00034 // Interval(min,max) : a continous interval [min,max] // 00035 // Interval(min,max,n): a "discrete interval" [min,max], i.e the n numbers: // 00036 // min, min+step, min+2*step,...., min+(n-1)*step, min+n*step=max // 00037 // e.g.: Interval(1,5,5)=1,2,3,4,5 // 00038 // Interval(.5,1.,6)= .5, .6., .7, .8, .9, 1.0 // 00039 // // 00040 // Note: **bin** counting starts from ZERO unlike in ROOT histograms // 00041 // // 00042 // Example: Interval(.5,1.,6) // 00043 // // 00044 // [ min max ] // 00045 // ------------------------------------------------------------ // 00046 // | | | | | | // 00047 // .5 .6 .7 .8 .9 1.0 // 00048 // // 00049 // bin 0 1 2 3 4 5 // 00050 // // 00051 // // 00052 ////////////////////////////////////////////////////////////////////////////// 00053 #ifndef ROOT_Rtypes 00054 #include "Rtypes.h" 00055 #endif 00056 00057 class TRandom3; 00058 00059 namespace TMVA { 00060 00061 class MsgLogger; 00062 00063 class Interval { 00064 00065 public: 00066 00067 Interval( Double_t min, Double_t max, Int_t nbins = 0 ); 00068 Interval( const Interval& other ); 00069 virtual ~Interval(); 00070 00071 // accessors 00072 Double_t GetMin() const { return fMin; } 00073 Double_t GetMax() const { return fMax; } 00074 Double_t GetWidth() const { return fMax - fMin; } 00075 Int_t GetNbins() const { return fNbins; } 00076 Double_t GetMean() const { return (fMax + fMin)/2; } 00077 Double_t GetRndm( TRandom3& ) const; 00078 Double_t GetElement( Int_t position ) const; 00079 Double_t GetStepSize() const; 00080 00081 void SetMax( Double_t m ) { fMax = m; } 00082 void SetMin( Double_t m ) { fMin = m; } 00083 00084 private: 00085 00086 Double_t fMin, fMax; // the constraints of the Interval 00087 Int_t fNbins; // when >0 : number of bins (discrete interval); when =0 continuous interval 00088 00089 static MsgLogger* fgLogger; // message logger 00090 MsgLogger& Log() const { return *fgLogger; } 00091 00092 ClassDef(Interval,0) // Interval definition, continous and discrete 00093 }; 00094 00095 } // namespace TMVA 00096 00097 #endif
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