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## Struct template coherent_tail_mean_impl

boost::accumulators::impl::coherent_tail_mean_impl — Estimation of the coherent tail mean based on order statistics (for both left and right tails)

## Synopsis

    // In header: <boost/accumulators/statistics/tail_mean.hpp>

    template<typename Sample, typename LeftRight>
    struct coherent_tail_mean_impl {
      // types
      typedef numeric::functional::fdiv< Sample, std::size_t >::result_type float_type;
      typedef float_type                                                    result_type;

      // construct/copy/destruct
      coherent_tail_mean_impl(dont_care);

      // public member functions
      template<typename Args> result_type result(Args const &) const;
    };

## Description

The coherent tail mean is equal to the non-coherent tail mean plus a correction term that ensures coherence in case of non-continuous distributions.

Equation 1.20.

Equation 1.21.

### `coherent_tail_mean_impl` public construct/copy/destruct

1.     coherent_tail_mean_impl(dont_care);

### `coherent_tail_mean_impl` public member functions

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