diff options
Diffstat (limited to 'gnu/lib/libg++/g++-include/LogNorm.h')
-rw-r--r-- | gnu/lib/libg++/g++-include/LogNorm.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/gnu/lib/libg++/g++-include/LogNorm.h b/gnu/lib/libg++/g++-include/LogNorm.h deleted file mode 100644 index 2e9454cadc2..00000000000 --- a/gnu/lib/libg++/g++-include/LogNorm.h +++ /dev/null @@ -1,81 +0,0 @@ -// This may look like C code, but it is really -*- C++ -*- -/* -Copyright (C) 1988 Free Software Foundation - written by Dirk Grunwald (grunwald@cs.uiuc.edu) - -This file is part of the GNU C++ Library. This library is free -software; you can redistribute it and/or modify it under the terms of -the GNU Library General Public License as published by the Free -Software Foundation; either version 2 of the License, or (at your -option) any later version. This library is distributed in the hope -that it will be useful, but WITHOUT ANY WARRANTY; without even the -implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR -PURPOSE. See the GNU Library General Public License for more details. -You should have received a copy of the GNU Library General Public -License along with this library; if not, write to the Free Software -Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id: LogNorm.h,v 1.1 1995/10/18 08:38:17 deraadt Exp $ -*/ - -#ifndef _LogNormal_h -#ifdef __GNUG__ -#pragma interface -#endif -#define _LogNormal_h - -#include <Normal.h> - -class LogNormal: public Normal { -protected: - double logMean; - double logVariance; - void setState(); -public: - LogNormal(double mean, double variance, RNG *gen); - double mean(); - double mean(double x); - double variance(); - double variance(double x); - virtual double operator()(); -}; - - -inline void LogNormal::setState() -{ - double m2 = logMean * logMean; - pMean = log(m2 / sqrt(logVariance + m2) ); -// from ch@heike.informatik.uni-dortmund.de: -// (was pVariance = log((sqrt(logVariance + m2)/m2 )); ) - pStdDev = sqrt(log((logVariance + m2)/m2 )); -} - -inline LogNormal::LogNormal(double mean, double variance, RNG *gen) - : Normal(mean, variance, gen) -{ - logMean = mean; - logVariance = variance; - setState(); -} - -inline double LogNormal::mean() { - return logMean; -} - -inline double LogNormal::mean(double x) -{ - double t=logMean; logMean = x; setState(); - return t; -} - -inline double LogNormal::variance() { - return logVariance; -} - -inline double LogNormal::variance(double x) -{ - double t=logVariance; logVariance = x; setState(); - return t; -} - -#endif |