<commit_before>// @(#)root/tmva $Id$
// Author: <NAME>, <NAME>, <NAME>, <NAME>

/**********************************************************************************
 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis       *
 * Package: TMVA                                                                  *
 * Class  : VariableGaussTransform                                                *
 * Web    : http://tmva.sourceforge.net                                           *
 *                                                                                *
 * Description:                                                                   *
 *      Decorrelation of input variables                                          *
 *                                                                                *
 * Authors (alphabetical):                                                        *
 *      <NAME> <<EMAIL>> - CERN, Switzerland              *
 *      <NAME>   <<EMAIL>>  - CERN, Switzerland              *
 *      <NAME>     <<EMAIL>>  - Uni Bonn, Germany              *
 *      <NAME>      <<EMAIL>>     - MPI-K Heidelberg, Germany      *
 *                                                                                *
 * Copyright (c) 2005:                                                            *
 *      CERN, Switzerland                                                         *
 *      U. of Victoria, Canada                                                    *
 *      MPI-K Heidelberg, Germany                                                 *
 *                                                                                *
 * Redistribution and use in source and binary forms, with or without             *
 * modification, are permitted according to the terms listed in LICENSE           *
 * (http://tmva.sourceforge.net/LICENSE)                                          *
 **********************************************************************************/

#ifndef ROOT_TMVA_VariableGaussTransform
#define ROOT_TMVA_VariableGaussTransform

#ifndef ROOT_TMVA_PDF
#include "TMVA/PDF.h"
#endif

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VariableGaussTransform                                               //
//                                                                      //
// Gaussian transformation of input variables.                          //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#include <vector>

#ifndef ROOT_TH1
#include "TH1.h"
#endif
#ifndef ROOT_TGraph
#include "TGraph.h"
#endif
#ifndef ROOT_TSpline
#include "TSpline.h"
#endif
#ifndef ROOT_TDirectory
#include "TDirectory.h"
#endif
#ifndef ROOT_Event
#include "Event.h"
#endif

#ifndef ROOT_TMVA_VariableTransformBase
#include "TMVA/VariableTransformBase.h"
#endif

namespace TMVA {

   class TMVAGaussPair {

   public:

      TMVAGaussPair( Float_t f, Float_t w ): fF(f), fW(w) {}
      Bool_t  operator >  ( const TMVAGaussPair &p ) { return fF >  p.fF; }
      Bool_t  operator <  ( const TMVAGaussPair &p ) { return fF <  p.fF; }
      Bool_t  operator == ( const TMVAGaussPair &p ) { return fF == p.fF; }
      Float_t GetValue() const { return fF; }
      Float_t GetWeight() const { return fW; }

   private:

      Float_t fF; // the float
      Float_t fW; // the event weight
   };


   class VariableGaussTransform : public VariableTransformBase {

   public:
  
      VariableGaussTransform( DataSetInfo& dsi );
      virtual ~VariableGaussTransform( void );

      void   Initialize();
      Bool_t PrepareTransformation( const std::vector<Event*>& );<commit_msg>From Fons: Fix required to compile on OpenSolaris. This fix was already in, but removed by mistake by the TMVA team in the recent update.<commit_after>// @(#)root/tmva $Id$
// Author: <NAME>, <NAME>, <NAME>, <NAME>

/**********************************************************************************
 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis       *
 * Package: TMVA                                                                  *
 * Class  : VariableGaussTransform                                                *
 * Web    : http://tmva.sourceforge.net                                           *
 *                                                                                *
 * Description:                                                                   *
 *      Decorrelation of input variables                                          *
 *                                                                                *
 * Authors (alphabetical):                                                        *
 *      <NAME> <<EMAIL>> - CERN, Switzerland              *
 *      <NAME>   <<EMAIL>>  - CERN, Switzerland              *
 *      <NAME>     <<EMAIL>>  - Uni Bonn, Germany              *
 *      <NAME>      <<EMAIL>>     - MPI-K Heidelberg, Germany      *
 *                                                                                *
 * Copyright (c) 2005:                                                            *
 *      CERN, Switzerland                                                         *
 *      U. of Victoria, Canada                                                    *
 *      MPI-K Heidelberg, Germany                                                 *
 *                                                                                *
 * Redistribution and use in source and binary forms, with or without             *
 * modification, are permitted according to the terms listed in LICENSE           *
 * (http://tmva.sourceforge.net/LICENSE)                                          *
 **********************************************************************************/

#ifndef ROOT_TMVA_VariableGaussTransform
#define ROOT_TMVA_VariableGaussTransform

#ifndef ROOT_TMVA_PDF
#include "TMVA/PDF.h"
#endif

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VariableGaussTransform                                               //
//                                                                      //
// Gaussian transformation of input variables.                          //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#include <vector>

#ifndef ROOT_TH1
#include "TH1.h"
#endif
#ifndef ROOT_TGraph
#include "TGraph.h"
#endif
#ifndef ROOT_TSpline
#include "TSpline.h"
#endif
#ifndef ROOT_TDirectory
#include "TDirectory.h"
#endif
#ifndef ROOT_Event
#include "Event.h"
#endif

#ifndef ROOT_TMVA_VariableTransformBase
#include "TMVA/VariableTransformBase.h"
#endif

namespace TMVA {

   class TMVAGaussPair {

   public:

      TMVAGaussPair( Float_t f, Float_t w ): fF(f), fW(w) {}
      Bool_t  operator >  ( const TMVAGaussPair &p ) const { return fF >  p.fF; }
      Bool_t  operator <  ( const TMVAGaussPair &p ) const { return fF <  p.fF; }
      Bool_t  operator == ( const TMVAGaussPair &p ) const { return fF == p.fF; }
      Float_t GetValue() const { return fF; }
      Float_t GetWeight() const { return fW; }

   private:

      Float_t fF; // the float
      Float_t fW; // the event weight
   };


   class VariableGaussTransform : public VariableTransformBase {

   public:
  
      VariableGaussTransform( DataSetInfo& dsi );
      virtual ~VariableGaussTransform( void );

      void   Initialize();
      Bool_t PrepareTransformation( const std::vector<Event*>& );
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