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boost::random::laplace_distribution
// In header: <boost/random/laplace_distribution.hpp> template<typename RealType = double> class laplace_distribution { public: // types typedef RealType ; typedef RealType ; // member classes/structs/unions class param_type { public: // types typedef laplace_distribution ; // construct/copy/destruct (RealType = , RealType = ); // public member functions RealType () ; RealType () ; // friend functions template<typename CharT, typename Traits> CharT, Traits > & (CharT, Traits > &, const param_type &); template<typename CharT, typename Traits> CharT, Traits > & (CharT, Traits > &, const param_type &); bool (const param_type &, const param_type &); bool (const param_type &, const param_type &); }; // construct/copy/destruct (RealType = , RealType = ); (const param_type &); // public member functions template<typename URNG> RealType (URNG &) ; template<typename URNG> RealType (URNG &, const param_type &) ; RealType () ; RealType () ; RealType () ; RealType () ; param_type () ; void (const param_type &); void (); // friend functions template<typename CharT, typename Traits> CharT, Traits > & (CharT, Traits > &, const laplace_distribution &); template<typename CharT, typename Traits> CharT, Traits > & (CharT, Traits > &, const laplace_distribution &); bool (const laplace_distribution &, const laplace_distribution &); bool (const laplace_distribution &, const laplace_distribution &); };
The laplace distribution is a real-valued distribution with two parameters, mean and beta.
It has .
laplace_distribution
public
construct/copy/destruct(RealType mean = , RealType beta = );
Constructs an
from its "mean" and "beta" parameters. laplace_distribution
(const param_type & param);
Constructs an
from its parameters. laplace_distribution
laplace_distribution
public member functionstemplate<typename URNG> RealType (URNG & urng) ;
Returns a random variate distributed according to the laplace distribution.
template<typename URNG> RealType (URNG & urng, const param_type & param) ;
Returns a random variate distributed accordint to the laplace distribution with parameters specified by param
.
RealType () ;
Returns the "mean" parameter of the distribution.
RealType () ;
Returns the "beta" parameter of the distribution.
RealType () ;
Returns the smallest value that the distribution can produce.
RealType () ;
Returns the largest value that the distribution can produce.
param_type () ;
Returns the parameters of the distribution.
void (const param_type & param);
Sets the parameters of the distribution.
void ();
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> CharT, Traits > & (CharT, Traits > & os, const laplace_distribution & wd);
Writes an
to a laplace_distribution
std::ostream
.
template<typename CharT, typename Traits> CharT, Traits > & (CharT, Traits > & is, const laplace_distribution & wd);
Reads an
from a laplace_distribution
std::istream
.
bool (const laplace_distribution & lhs, const laplace_distribution & rhs);
Returns true if the two instances of
will return identical sequences of values given equal generators. laplace_distribution
bool (const laplace_distribution & lhs, const laplace_distribution & rhs);
Returns true if the two instances of
will return different sequences of values given equal generators. laplace_distribution