Manpages - std_exponential_distribution.3

struct param_type

typedef _RealType result_type

exponential_distribution ()
Constructs an exponential distribution with inverse scale parameter 1.0.

exponential_distribution (_RealType __lambda)
Constructs an exponential distribution with inverse scale parameter \(ambda\).

exponential_distribution (const param_type &__p)

template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng)

template<typename _ForwardIterator , typename _UniformRandomNumberGenerator > void __generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator &__urng, const param_type &__p)

template<typename _UniformRandomNumberGenerator > void __generate (result_type __f, *result_type __t, _UniformRandomNumberGenerator &__urng, const *param_type &__p)

_RealType lambda () const
Returns the inverse scale parameter of the distribution.

result_type max () const
Returns the least upper bound value of the distribution.

result_type min () const
Returns the greatest lower bound value of the distribution.

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng)
Generating functions.

template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p)

param_type param () const
Returns the parameter set of the distribution.

void param (const param_type &__param)
Sets the parameter set of the distribution.

void reset ()
Resets the distribution state.

bool operator== (const exponential_distribution &__d1, const exponential_distribution &__d2)
Return true if two exponential distributions have the same parameters.

class std::exponential_distribution< _RealType >“An exponential continuous distribution for random numbers.

The formula for the exponential probability density function is \(p(x|ambda) = ambda e^{-ambda x}\).

Distribution StatisticsMean\(ac{1}{ambda}\) Median\(ac{n 2}{ambda}\) Mode\(zero\) Range\([0, infty]\) Standard Deviation\(ac{1}{ambda}\)

Definition at line 4647 of file random.h.

std::exponential_distribution*< _RealType >::*result_type The type of the range of the distribution.

Definition at line 4654 of file random.h.

std::exponential_distribution*< _RealType >::*exponential_distribution ()= [inline]= Constructs an exponential distribution with inverse scale parameter 1.0.

Definition at line 4691 of file random.h.

std::exponential_distribution*< _RealType >::*exponential_distribution (_RealType __lambda)= [inline]=, = [explicit]= Constructs an exponential distribution with inverse scale parameter \(ambda\).

Definition at line 4698 of file random.h.

std::exponential_distribution*< _RealType >::*exponential_distribution (const param_type & __p)= [inline]=, = [explicit]= Definition at line 4703 of file random.h.

_ForwardIterator , typename _UniformRandomNumberGenerator > void std::exponential_distribution*< _RealType >::__generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator & __urng)= [inline]= Definition at line *4772 of file random.h.

_ForwardIterator , typename _UniformRandomNumberGenerator > void std::exponential_distribution*< _RealType >::__generate (_ForwardIterator __f, _ForwardIterator __t, _UniformRandomNumberGenerator & __urng, const *param_type & __p)= [inline]= Definition at line 4779 of file random.h.

_UniformRandomNumberGenerator > void std::exponential_distribution*< _RealType >::__generate (*result_type * __f, result_type * __t, _UniformRandomNumberGenerator & __urng, const param_type & __p)= [inline]= Definition at line 4786 of file random.h.

*std::exponential_distribution*< _RealType >::lambda () const= [inline]= Returns the inverse scale parameter of the distribution.

Definition at line 4719 of file random.h.

*std::exponential_distribution*< _RealType >::max () const= [inline]= Returns the least upper bound value of the distribution.

Definition at line 4748 of file random.h.

References std::numeric_limits< _Tp >::max().

*std::exponential_distribution*< _RealType >::min () const= [inline]= Returns the greatest lower bound value of the distribution.

Definition at line 4741 of file random.h.

_UniformRandomNumberGenerator > result_type *std::exponential_distribution*< _RealType >::operator() (_UniformRandomNumberGenerator & __urng)= [inline]= Generating functions.

Definition at line 4756 of file random.h.

References std::exponential_distribution< _RealType >::operator()().

Referenced by std::exponential_distribution< _RealType >::operator()().

_UniformRandomNumberGenerator > result_type std::exponential_distribution*< _RealType >::operator() (_UniformRandomNumberGenerator & __urng, const *param_type & __p)= [inline]= Definition at line 4761 of file random.h.

*std::exponential_distribution*< _RealType >::param () const= [inline]= Returns the parameter set of the distribution.

Definition at line 4726 of file random.h.

Referenced by std::operator>>().

std::exponential_distribution*< _RealType >::param (const *param_type & __param)= [inline]= Sets the parameter set of the distribution.

Parameters

__param The new parameter set of the distribution.

Definition at line 4734 of file random.h.

*std::exponential_distribution*< _RealType >::reset ()= [inline]= Resets the distribution state. Has no effect on exponential distributions.

Definition at line 4713 of file random.h.

*exponential_distribution*< _RealType > & __d1, const *exponential_distribution*< _RealType > & __d2)= [friend]= Return true if two exponential distributions have the same parameters.

Definition at line 4796 of file random.h.