include/random.h

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00001 /********************************************************************************
00002  *  Neural Network Framework.                                                   *
00003  *  Copyright (C) 2005-2008 Gianluca Massera <emmegian@yahoo.it>                *
00004  *                                                                              *
00005  *  This program is free software; you can redistribute it and/or modify        *
00006  *  it under the terms of the GNU General Public License as published by        *
00007  *  the Free Software Foundation; either version 2 of the License, or           *
00008  *  (at your option) any later version.                                         *
00009  *                                                                              *
00010  *  This program is distributed in the hope that it will be useful,             *
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of              *
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               *
00013  *  GNU General Public License for more details.                                *
00014  *                                                                              *
00015  *  You should have received a copy of the GNU General Public License           *
00016  *  along with this program; if not, write to the Free Software                 *
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA  *
00018  ********************************************************************************/
00019 
00020 #ifndef NNFWRANDOM_H
00021 #define NNFWRANDOM_H
00022 
00029 #include "types.h"
00030 
00031 
00032 namespace nnfw {
00033 
00038 class NNFW_API Random {
00039 public:
00042 
00045     static void setSeed( long int seed );
00046 
00049     static Real flatReal( );
00050 
00053     static Real flatReal( Real min, Real max );
00054     
00057     static RealVec& flatRealVec( RealVec& vec, Real min, Real max );
00058     
00061     static RealMat& flatRealMat( RealMat& mat, Real min, Real max );
00062 
00065     static bool boolean( Real trueProb );
00066 
00069     static bool boolean( );
00070 
00073     static u_int flatInt( u_int x );
00074 
00077     static int flatInt( int x, int y );
00078 
00081     static Real gauss( Real mean, Real stdev );
00082 };
00083 
00084 }
00085 
00086 #endif
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