probability.h

00001 // probability.h (probability and statistics functions)
00002 //
00003 //  The WorldForge Project
00004 //  Copyright (C) 2002  The WorldForge Project
00005 //
00006 //  This program is free software; you can redistribute it and/or modify
00007 //  it under the terms of the GNU General Public License as published by
00008 //  the Free Software Foundation; either version 2 of the License, or
00009 //  (at your option) any later version.
00010 //
00011 //  This program is distributed in the hope that it will be useful,
00012 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 //  GNU General Public License for more details.
00015 //
00016 //  You should have received a copy of the GNU General Public License
00017 //  along with this program; if not, write to the Free Software
00018 //  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00019 //
00020 //  For information about WorldForge and its authors, please contact
00021 //  the Worldforge Web Site at http://www.worldforge.org.
00022 
00023 // Author: Ron Steinke
00024 // Created: 2002-1-23
00025 
00026 // These functions will use double instead of CoordType, for accuracy
00027 
00028 #ifndef WFMATH_PROBABILTIY_H
00029 #define WFMATH_PROBABILTIY_H
00030 
00031 #include <wfmath/const.h>
00032 
00033 namespace WFMath {
00034 
00036 
00042 double GaussianConditional(double mean, double stddev, double val);
00044 double Gaussian(double mean, double stddev, double val);
00045 
00047 
00051 double PoissonConditional(double mean, unsigned int step);
00053 double Poisson(double mean, unsigned int step);
00054 
00056 double LogFactorial(unsigned int n);
00058 double Factorial(unsigned int n);
00059 
00061 double LogGamma(double z);
00063 double Gamma(double z);
00064 
00065 } // namespace WFMath
00066 
00067 #endif  // WFMATH_PROBABILITY_H

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