#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics.hpp>

#include <iostream>

int main()
{
	using namespace boost::accumulators;
    accumulator_set<unsigned, stats<tag::moment<4> > > acc;

	for(unsigned i = 125 ; i < 150; ++i) {

		acc(i);
		std::cerr << moment<4>(acc) << '\n';
	}
}