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## Struct template skewness_impl

boost::accumulators::impl::skewness_impl — Skewness estimation.

## Synopsis

    // In header: <boost/accumulators/statistics_fwd.hpp>

    template<typename Sample>
    struct skewness_impl : public accumulator_base {
      // construct/copy/destruct
      skewness_impl(dont_care);

      // public member functions
      template<typename Args> result_type result(Args const &) const;
      template<typename Archive> void serialize(Archive &, const unsigned int);
    };

## Description

The skewness of a sample distribution is defined as the ratio of the 3rd central moment and the -th power of the 2nd central moment (the variance) of the samples 3. The skewness can also be expressed by the simple moments:

Equation 1.30.

where are the -th moment and the mean (first moment) of the samples.

### `skewness_impl` public construct/copy/destruct

1.     skewness_impl(dont_care);

### `skewness_impl` public member functions

1.     template<typename Args> result_type result(Args const & args) const;

2.     template<typename Archive>
         void serialize(Archive & ar, const unsigned int file_version);