oneapi::mkl::rng::poisson
¶
Generates Poisson distributed random values.
Syntax
template<typename IntType = std::int32_t, typename Method = poisson_method::by_default> class poisson { public: using method_type = Method; using result_type = IntType; poisson(): poisson(0.5){} explicit poisson(double lambda); explicit poisson(const param_type& pt); double lambda() const; param_type param() const; void param(const param_type& pt); };
Devices supported: Host, CPU, and GPU
Include Files
oneapi/mkl/rng.hpp
Description
The
oneapi::mkl::rng::poisson
class object is used in theoneapi::mkl::rng::generate
function to provide Poisson distributed random numbers with distribution parameter λ, whereλ∈R; λ > 0
.The probability distribution is given by:
P(X = k) = \frac{\lambda^k e^{-\lambda}}{k!}
k \in \{0, 1, 2, \ldots\}. The cumulative distribution function is as follows:
F_{\lambda}(x) = \begin{cases} \sum_{k=0}^{\lfloor x \rfloor} \frac{\lambda^k e^{-\lambda}}{k!}, & x \geq 0 \\ 0, & x < 0 \end{cases}, x \in R
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at https://www.intel.com/PerformanceIndex. Notice revision #20201201
Template Parameters
|
Type of the produced values. The specific values are as follows:
|
|
Generation method. The specific values are as follows:
|
Input Parameters
Name |
Type |
Description |
---|---|---|
lambda |
|
Distribution parameter λ. |