poisson_v#
Generates Poisson distributed random values with varying mean.
Description#
The poisson_v
class object is used in the generate
function
to provide n
Poisson distributed random numbers \(x_i (i = 1, ..., n)\)
with distribution parameter \(\lambda_i\), where \(\lambda_i \in R, \lambda_i > 0\).
The probability distribution is given by:
The cumulative distribution function is as follows:
Product and Performance Information |
---|
Performance varies by use, configuration, and other factors. Learn more at https://www.intel.com/PerformanceIndex. Notice revision #20201201 |
API#
Syntax#
namespace oneapi::mkl::rng {
template<typename IntType = std::int32_t,
typename Method = poisson_v_method::by_default>
class poisson_v {
public:
using method_type = Method;
using result_type = IntType;
explicit poisson_v(std::vector<double> lambda); // deprecated since oneMKL 2023.0
explicit poisson_v(sycl::span<double> lambda);
explicit poisson_v(const param_type& pt);
std::vector<double> lambda() const;
param_type param() const;
void param(const param_type& pt);
};
}
Devices supported: CPU and GPU
Include Files#
oneapi/mkl/rng.hpp
Template Parameters#
|
Type of the produced values. The specific values are as follows:
|
|
Generation method. The specific values are as follows:
See brief descriptions of the methods in Distributions Template Parameter Method. |
Input Parameters#
Name |
Type |
Description |
---|---|---|
lambda |
|
Array of |
Note
explicit poisson_v(std::vector<double> lambda);
is deprecated and will be removed in one of the next releases. Useexplicit poisson_v(sycl::span<double> lambda);
instead.When passing a
sycl::span
that is constructed over a user’s memory to the constructor, users must manage the memory under sycl::span by themselves. They must not destroy the memory while data are processed.