Provided by: libstdc++6-4.7-doc_4.7.3-12ubuntu1_all
NAME
std::exponential_distribution< _RealType > -
SYNOPSIS
Classes struct param_type Public Types typedef _RealType result_type Public Member Functions exponential_distribution (const result_type &__lambda=result_type(1)) exponential_distribution (const param_type &__p) _RealType lambda () const result_type max () const result_type min () const template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng) template<typename _UniformRandomNumberGenerator > result_type operator() (_UniformRandomNumberGenerator &__urng, const param_type &__p) param_type param () const void param (const param_type &__param) void reset () Friends bool operator== (const exponential_distribution &__d1, const exponential_distribution &__d2)
Detailed Description
template<typename _RealType = double>class std::exponential_distribution< _RealType > An exponential continuous distribution for random numbers. The formula for the exponential probability density function is $p(x|bda) = bda e^{-bda x}$. Mean$ac{1}{bda}$ Median$ac{}}bda}$ Mode$zero$ Range$[0, infty]$ Standard Deviation$ac{1}{bda}$ Distribution Statistics Definition at line 4141 of file random.h.
Member Typedef Documentation
template<typename _RealType = double> typedef _RealType std::exponential_distribution< _RealType >::result_type The type of the range of the distribution. Definition at line 4144 of file random.h.
Constructor & Destructor Documentation
template<typename _RealType = double> std::exponential_distribution< _RealType >::exponential_distribution (const result_type &__lambda = result_type(1)) [inline], [explicit] Constructs an exponential distribution with inverse scale parameter $bda$. Definition at line 4179 of file random.h.
Member Function Documentation
template<typename _RealType = double> _RealType std::exponential_distribution< _RealType >::lambda () const [inline] Returns the inverse scale parameter of the distribution. Definition at line 4200 of file random.h. template<typename _RealType = double> result_type std::exponential_distribution< _RealType >::max () const [inline] Returns the least upper bound value of the distribution. Definition at line 4229 of file random.h. References std::numeric_limits< _Tp >::max(). template<typename _RealType = double> result_type std::exponential_distribution< _RealType >::min () const [inline] Returns the greatest lower bound value of the distribution. Definition at line 4222 of file random.h. template<typename _RealType = double> template<typename _UniformRandomNumberGenerator > result_type std::exponential_distribution< _RealType >::operator() (_UniformRandomNumberGenerator &__urng) [inline] Generating functions. Definition at line 4237 of file random.h. template<typename _RealType = double> param_type std::exponential_distribution< _RealType >::param () const [inline] Returns the parameter set of the distribution. Definition at line 4207 of file random.h. Referenced by std::operator>>(). template<typename _RealType = double> void 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 4215 of file random.h. template<typename _RealType = double> void std::exponential_distribution< _RealType >::reset () [inline] Resets the distribution state. Has no effect on exponential distributions. Definition at line 4194 of file random.h.
Friends And Related Function Documentation
template<typename _RealType = double> bool operator== (const exponential_distribution< _RealType > &__d1, const exponential_distribution< _RealType > &__d2) [friend] Return true if two exponential distributions have the same parameters. Definition at line 4255 of file random.h.
Author
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