ROOT_528-00b_version: tmva/src/TActivationIdentity.cxx Source File

00001 // @(#)root/tmva $Id: TActivationIdentity.cxx 29122 2009-06-22 06:51:30Z brun $
00002 // Author: Matt Jachowski 
00003 
00004 /**********************************************************************************
00005  * Project: TMVA - a Root-integrated toolkit for multivariate data analysis       *
00006  * Package: TMVA                                                                  *
00007  * Class  : TActivationIdentity                                                   *
00008  * Web    : http://tmva.sourceforge.net                                           *
00009  *                                                                                *
00010  * Description:                                                                   *
00011  *      Identity activation function for TNeuron                                  *
00012  *                                                                                *
00013  * Authors (alphabetical):                                                        *
00014  *      Matt Jachowski  <jachowski@stanford.edu> - Stanford University, USA       *
00015  *                                                                                *
00016  * Copyright (c) 2005:                                                            *
00017  *      CERN, Switzerland                                                         *
00018  *                                                                                *
00019  * Redistribution and use in source and binary forms, with or without             *
00020  * modification, are permitted according to the terms listed in LICENSE           *
00021  * (http://tmva.sourceforge.net/LICENSE)                                          *
00022  **********************************************************************************/
00023 
00024 #include <iostream>
00025 
00026 #include "TMVA/TActivationIdentity.h"
00027 
00028 ClassImp(TMVA::TActivationIdentity)
00029 
00030 //______________________________________________________________________________
00031 void TMVA::TActivationIdentity::MakeFunction( std::ostream& fout, const TString& fncName ) 
00032 {
00033    // writes the identity function source code
00034    fout << "double " << fncName << "(double x) const {" << std::endl;
00035    fout << "   // identity" << std::endl;
00036    fout << "   return x;" << std::endl;
00037    fout << "}" << std::endl;
00038 }