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File indexing completed on 2025-01-18 10:11:11
0001 // @(#)root/tmva $Id$ 0002 // Author: Andreas Hoecker, Joerg Stelzer, Helge Voss, Kai Voss 0003 0004 /********************************************************************************** 0005 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis * 0006 * Package: TMVA * 0007 * Class : TSpline2 * 0008 * * 0009 * * 0010 * Description: * 0011 * Quadratic spline class; uses quadrax function for interpolation * 0012 * * 0013 * Authors (alphabetical): * 0014 * Andreas Hoecker <Andreas.Hocker@cern.ch> - CERN, Switzerland * 0015 * Helge Voss <Helge.Voss@cern.ch> - MPI-K Heidelberg, Germany * 0016 * Kai Voss <Kai.Voss@cern.ch> - U. of Victoria, Canada * 0017 * * 0018 * Copyright (c) 2005: * 0019 * CERN, Switzerland * 0020 * U. of Victoria, Canada * 0021 * MPI-K Heidelberg, Germany * 0022 * * 0023 * Redistribution and use in source and binary forms, with or without * 0024 * modification, are permitted according to the terms listed in LICENSE * 0025 * (see tmva/doc/LICENSE) * 0026 **********************************************************************************/ 0027 0028 #ifndef ROOT_TMVA_TSpline2 0029 #define ROOT_TMVA_TSpline2 0030 0031 ////////////////////////////////////////////////////////////////////////// 0032 // // 0033 // TSpline2 // 0034 // // 0035 // Quadratic interpolation class (using quadrax) // 0036 // // 0037 ////////////////////////////////////////////////////////////////////////// 0038 0039 #include "TSpline.h" 0040 0041 namespace TMVA { 0042 0043 class TSpline2 : public TSpline { 0044 0045 public: 0046 0047 TSpline2( const TString& title, const TGraph *theGraph ); 0048 virtual ~TSpline2( void ); 0049 0050 virtual Double_t Eval( Double_t x ) const; 0051 0052 // dummy implementations 0053 virtual void BuildCoeff( void ); 0054 virtual void GetKnot( Int_t i, Double_t& x, Double_t& y ) const; 0055 0056 private: 0057 std::vector<Double_t> fX; 0058 std::vector<Double_t> fY; 0059 0060 Double_t Quadrax( Float_t dm, Float_t dm1, 0061 Float_t dm2, Float_t dm3, 0062 Float_t cos1, Float_t cos2, 0063 Float_t cos3 ) const; 0064 0065 ClassDef(TSpline2,0); //Quadratic interpolation class (using quadrax) 0066 }; 0067 0068 } // namespace TMVA 0069 0070 #endif 0071 0072
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