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boost::random::laplace_distribution
// In header: <boost/random/laplace_distribution.hpp> template<typename RealType> class laplace_distribution { public: // types typedef ; typedef ; // member classes/structs/unions class param_type { public: // types typedef laplace_distribution ; // construct/copy/destruct ( = , = ); // public member functions () ; () ; // friend functions template<typename CharT, typename Traits> (, param_type &); template<typename CharT, typename Traits> (, param_type &); (param_type &, param_type &); (param_type &, param_type &); }; // construct/copy/destruct ( = , = ); (param_type &); // public member functions template<typename URNG> () ; template<typename URNG> (, param_type &) ; () ; () ; () ; () ; param_type () ; (param_type &); (); // friend functions template<typename CharT, typename Traits> (, laplace_distribution &); template<typename CharT, typename Traits> (, laplace_distribution &); (laplace_distribution &, laplace_distribution &); (laplace_distribution &, laplace_distribution &); };
The laplace distribution is a real-valued distribution with two parameters, mean and beta.
It has .
laplace_distribution
public
construct/copy/destruct( mean = , beta = );
Constructs an
from its "mean" and "beta" parameters. laplace_distribution
(param_type & param);
Constructs an
from its parameters. laplace_distribution
laplace_distribution
public member functionstemplate<typename URNG> ( urng) ;
Returns a random variate distributed according to the laplace distribution.
template<typename URNG> ( urng, param_type & param) ;
Returns a random variate distributed accordint to the laplace distribution with parameters specified by param
.
() ;
Returns the "mean" parameter of the distribution.
() ;
Returns the "beta" parameter of the distribution.
() ;
Returns the smallest value that the distribution can produce.
() ;
Returns the largest value that the distribution can produce.
param_type () ;
Returns the parameters of the distribution.
(param_type & param);
Sets the parameters of the distribution.
();
Effects: Subsequent uses of the distribution do not depend on values produced by any engine prior to invoking reset.
laplace_distribution
friend functionstemplate<typename CharT, typename Traits> ( os, laplace_distribution & wd);
Writes an
to a laplace_distribution
std::ostream
.
template<typename CharT, typename Traits> ( is, laplace_distribution & wd);
Reads an
from a laplace_distribution
std::istream
.
(laplace_distribution & lhs, laplace_distribution & rhs);
Returns true if the two instances of
will return identical sequences of values given equal generators. laplace_distribution
(laplace_distribution & lhs, laplace_distribution & rhs);
Returns true if the two instances of
will return different sequences of values given equal generators. laplace_distribution