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onemkl_stats_skewness.rst

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skewness

Entry point to compute skewness.

Description and Assumptions

The oneapi::mkl::stats::skewness function is used to compute a skewness array (skewness for each dataset's dimension).

:ref:`onemkl_stats_skewness` supports the following precisions for data:

T
float
double

skewness (buffer version)

Syntax

namespace oneapi::mkl::stats {
template<method Method = method::fast, typename Type, layout ObservationsLayout>
    void skewness(sycl::queue& queue,
    const dataset<ObservationsLayout, sycl::buffer<Type, 1>>& data,
    sycl::buffer<Type, 1> skewness);
}

Template Parameters

Method

Method which is used for estimate computation. The specific values are as follows:

  • oneapi::mkl::stats::method::fast
  • oneapi::mkl::stats::method::one_pass
Type
Data precision.
ObservationsLayout
Data layout. The specific values are described in :ref:`onemkl_stats_dataset`.

Input Parameters

queue
The queue where the routine should be executed.
data
Dataset which is used for computation.

Output Parameters

skewness
sycl::buffer array of skewness values.

Throws

oneapi::mkl::invalid_argument
Exception is thrown when skewness.get_count() == 0, or dataset object is invalid

skewness (USM version)

Syntax

namespace oneapi::mkl::stats {
template<method Method = method::fast, typename Type, layout ObservationsLayout>
    sycl::event skewness(sycl::queue& queue,
    const dataset<ObservationsLayout, Type*>& data,
    Type* skewness,
    const std::vector<sycl::event> &dependencies = {});
}

Template Parameters

Method

Method which is used for estimate computation. The specific values are as follows:

  • oneapi::mkl::stats::method::fast
  • oneapi::mkl::stats::method::one_pass
Type
Data precision.
ObservationsLayout
Data layout. The specific values are described in :ref:`onemkl_stats_dataset`.

Input Parameters

queue
The queue where the routine should be executed.
data
Dataset which is used for computation.
dependencies
Optional parameter. List of events to wait for before starting computation, if any.

Output Parameters

skewness
Pointer to the array of skewness values.

Throws

oneapi::mkl::invalid_argument
Exception is thrown when skewness == nullptr, or dataset object is invalid

Return Value

Output event to wait on to ensure computation is complete.

Parent topic: :ref:`onemkl_stats_routines`