beta

oneMKL - Data Parallel C++ Developer Reference

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ID 772045

Date 3/31/2025

Version

Public

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beta

Generates beta distributed random values.

Description
API

Description

The beta class object is used in the generate function to provide random numbers with beta distribution that has shape parameters p and q, displacement a, and scale parameter (b, β), where p, q, a, and .

The probability density function is given by:

where B(p, q) is the complete beta function.

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 RealType = float,
           typename Method = beta_method::by_default>
  class beta {
  public:
    using method_type = Method; using result_type = RealType;

    beta(): beta((RealType)1.0, (RealType)1.0, (RealType)(0.0),
                 (RealType)(1.0)){} explicit beta(RealType p,
                 RealType q, RealType a, RealType b);
    explicit beta(const param_type& pt);

    RealType p() const;
    RealType q() const;
    RealType a() const;
    RealType b() const;
    param_type param() const;
    void param(const param_type& pt);
  };
}

Devices supported: CPU and GPU.

Include Files

oneapi/mkl/rng.hpp

Template Parameters

typename RealType = float

Type of the produced values. The specific values are as follows:

float

double

typename Method = oneapi::mkl::rng::beta_method::by_default

Generation method. The specific values are as follows:

oneapi::mkl::rng::beta_method::cja

oneapi::mkl::rng::beta_method::cja_accurate

See brief descriptions of the methods in Distributions Template Parameter Method.

Input Parameters

Name	Type	Description
p	`RealType (float, double)`	Shape `p`
q	`RealType (float, double)`	Shape `q`
a	`RealType (float, double)`	Displacement `a`.
b	`RealType (float, double)`	Scalefactor `b`.

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oneMKL - Data Parallel C++ Developer Reference

beta

Description

API