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Diffstat (limited to 'src/third_party/boost-1.56.0/boost/random/extreme_value_distribution.hpp')
| -rw-r--r-- | src/third_party/boost-1.56.0/boost/random/extreme_value_distribution.hpp | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/src/third_party/boost-1.56.0/boost/random/extreme_value_distribution.hpp b/src/third_party/boost-1.56.0/boost/random/extreme_value_distribution.hpp deleted file mode 100644 index 419c3da651d..00000000000 --- a/src/third_party/boost-1.56.0/boost/random/extreme_value_distribution.hpp +++ /dev/null @@ -1,177 +0,0 @@ -/* boost random/extreme_value_distribution.hpp header file - * - * Copyright Steven Watanabe 2010 - * Distributed under the Boost Software License, Version 1.0. (See - * accompanying file LICENSE_1_0.txt or copy at - * http://www.boost.org/LICENSE_1_0.txt) - * - * See http://www.boost.org for most recent version including documentation. - * - * $Id$ - */ - -#ifndef BOOST_RANDOM_EXTREME_VALUE_DISTRIBUTION_HPP -#define BOOST_RANDOM_EXTREME_VALUE_DISTRIBUTION_HPP - -#include <boost/config/no_tr1/cmath.hpp> -#include <iosfwd> -#include <istream> -#include <boost/config.hpp> -#include <boost/limits.hpp> -#include <boost/random/detail/operators.hpp> -#include <boost/random/uniform_01.hpp> - -namespace boost { -namespace random { - -/** - * The extreme value distribution is a real valued distribution with two - * parameters a and b. - * - * It has \f$\displaystyle p(x) = \frac{1}{b}e^{\frac{a-x}{b} - e^\frac{a-x}{b}}\f$. - */ -template<class RealType = double> -class extreme_value_distribution { -public: - typedef RealType result_type; - typedef RealType input_type; - - class param_type { - public: - typedef extreme_value_distribution distribution_type; - - /** - * Constructs a @c param_type from the "a" and "b" parameters - * of the distribution. - * - * Requires: b > 0 - */ - explicit param_type(RealType a_arg = 1.0, RealType b_arg = 1.0) - : _a(a_arg), _b(b_arg) - {} - - /** Returns the "a" parameter of the distribtuion. */ - RealType a() const { return _a; } - /** Returns the "b" parameter of the distribution. */ - RealType b() const { return _b; } - - /** Writes a @c param_type to a @c std::ostream. */ - BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR(os, param_type, parm) - { os << parm._a << ' ' << parm._b; return os; } - - /** Reads a @c param_type from a @c std::istream. */ - BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR(is, param_type, parm) - { is >> parm._a >> std::ws >> parm._b; return is; } - - /** Returns true if the two sets of parameters are the same. */ - BOOST_RANDOM_DETAIL_EQUALITY_OPERATOR(param_type, lhs, rhs) - { return lhs._a == rhs._a && lhs._b == rhs._b; } - - /** Returns true if the two sets of parameters are the different. */ - BOOST_RANDOM_DETAIL_INEQUALITY_OPERATOR(param_type) - - private: - RealType _a; - RealType _b; - }; - - /** - * Constructs an @c extreme_value_distribution from its "a" and "b" parameters. - * - * Requires: b > 0 - */ - explicit extreme_value_distribution(RealType a_arg = 1.0, RealType b_arg = 1.0) - : _a(a_arg), _b(b_arg) - {} - /** Constructs an @c extreme_value_distribution from its parameters. */ - explicit extreme_value_distribution(const param_type& parm) - : _a(parm.a()), _b(parm.b()) - {} - - /** - * Returns a random variate distributed according to the - * @c extreme_value_distribution. - */ - template<class URNG> - RealType operator()(URNG& urng) const - { - using std::log; - return _a - log(-log(uniform_01<RealType>()(urng))) * _b; - } - - /** - * Returns a random variate distributed accordint to the extreme - * value distribution with parameters specified by @c param. - */ - template<class URNG> - RealType operator()(URNG& urng, const param_type& parm) const - { - return extreme_value_distribution(parm)(urng); - } - - /** Returns the "a" parameter of the distribution. */ - RealType a() const { return _a; } - /** Returns the "b" parameter of the distribution. */ - RealType b() const { return _b; } - - /** Returns the smallest value that the distribution can produce. */ - RealType min BOOST_PREVENT_MACRO_SUBSTITUTION () const - { return -std::numeric_limits<RealType>::infinity(); } - /** Returns the largest value that the distribution can produce. */ - RealType max BOOST_PREVENT_MACRO_SUBSTITUTION () const - { return std::numeric_limits<RealType>::infinity(); } - - /** Returns the parameters of the distribution. */ - param_type param() const { return param_type(_a, _b); } - /** Sets the parameters of the distribution. */ - void param(const param_type& parm) - { - _a = parm.a(); - _b = parm.b(); - } - - /** - * Effects: Subsequent uses of the distribution do not depend - * on values produced by any engine prior to invoking reset. - */ - void reset() { } - - /** Writes an @c extreme_value_distribution to a @c std::ostream. */ - BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR(os, extreme_value_distribution, wd) - { - os << wd.param(); - return os; - } - - /** Reads an @c extreme_value_distribution from a @c std::istream. */ - BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR(is, extreme_value_distribution, wd) - { - param_type parm; - if(is >> parm) { - wd.param(parm); - } - return is; - } - - /** - * Returns true if the two instances of @c extreme_value_distribution will - * return identical sequences of values given equal generators. - */ - BOOST_RANDOM_DETAIL_EQUALITY_OPERATOR(extreme_value_distribution, lhs, rhs) - { return lhs._a == rhs._a && lhs._b == rhs._b; } - - /** - * Returns true if the two instances of @c extreme_value_distribution will - * return different sequences of values given equal generators. - */ - BOOST_RANDOM_DETAIL_INEQUALITY_OPERATOR(extreme_value_distribution) - -private: - RealType _a; - RealType _b; -}; - -} // namespace random -} // namespace boost - -#endif // BOOST_RANDOM_EXTREME_VALUE_DISTRIBUTION_HPP |