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## Struct template weighted_moment_impl

boost::accumulators::impl::weighted_moment_impl

## Synopsis

    template<typename N, typename Sample, typename Weight>
    struct weighted_moment_impl {
      // types
      typedef numeric::functional::multiplies< Sample, Weight >::result_type       weighted_sample;
      typedef numeric::functional::average< weighted_sample, Weight >::result_type result_type;

      // construct/copy/destruct
      template<typename Args> weighted_moment_impl(Args const &);

      // public member functions
       BOOST_MPL_ASSERT_RELATION(N::value, 0) ;
      template<typename Args> void operator()(Args const &) ;
      template<typename Args> result_type result(Args const &) const;
    };

## Description

### `weighted_moment_impl` public construct/copy/destruct

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

### `weighted_moment_impl` public member functions

1.      BOOST_MPL_ASSERT_RELATION(N::value, 0) ;

2.     template<typename Args> void operator()(Args const & args) ;

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