Generates lognormally distributed random numbers.
template<typename RealType = float, typename Method = mkl::rng::device::lognormal_method::by_default>
class lognormal { public:
using method_type = Method; using result_type = RealType;
lognormal(): lognormal((RealType)0.0, (RealType)1.0, (RealType) 0.0, (RealType)1.0){} explicit lognormal(RealType m, RealType s, RealType displ = (RealType)0.0, RealType scale = (RealType)1.0);
RealType m() const;
RealType s() const;
RealType displ() const;
RealType scale() const;
};
mkl_rng_sycl_device.hpp
The mkl::rng::device::lognormal class object is used in the mkl::rng::device::generate function to provide random numbers with average of distribution (m, a) and standard deviation (s, σ) of subject normal distribution, displacement (displ, b), and scalefactor (scale, β), where a, σ, b, β ∈ R ; σ > 0 , β > 0.
The probability density function is given by:
The cumulative distribution function is as follows:
typename RealType = float |
Type of the produced values. The specific values are as follows: float double |
typename Method = mkl::rng::device::lognormal_method::by_default |
Generation method. The specific values are as follows: mkl::rng::device::lognormal_method::box_muller2 |
Name |
Type |
Description |
---|---|---|
m |
RealType (float, double) |
Average a of the subject normal distribution. |
s |
RealType (float, double) |
Standard deviation σ of the subject normal distribution. |
displ |
RealType (float, double) |
Displacement displ. |
scale |
RealType (float, double) |
Scalefactor scale. |