accumulators.h File Reference

Define and declare accumulator_set. More...

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Classes
struct	accumulator_set< T, typename >
	generic accumulator of a scalar type More...

Functions
template<typename ACC >
ACC::value_type	mean (const ACC &ac)
template<typename T >
std::ostream &	operator<< (std::ostream &os, accumulator_set< T > &rhs)

Detailed Description

Define and declare accumulator_set.

A temporary implementation to handle scalar samples and will be replaced by boost.Accumulator

Definition in file accumulators.h.

Function Documentation

mean()

ACC::value_type mean ( const ACC &  ac )

inline

Definition at line 147 of file accumulators.h.

Referenced by CSEnergyEstimator::accumulate(), Walker< qmcplusplus::QMCTraits, qmcplusplus::PtclOnLatticeTraits >::getPropertyHistorySum(), DescentEngine::mpi_unbiased_ratio_of_means(), qmcplusplus::TEST_CASE(), and qmcplusplus::test_real_accumulator().

{
  return ac.mean();
}

operator<<()

std::ostream& operator<<	(	std::ostream &	os,
		accumulator_set< T > &	rhs
	)

Definition at line 153 of file accumulators.h.

{
  os << "accumulator_set: "
     << " value = " << rhs.properties[0] << " value_sq = " << rhs.properties[1] << " weight = " << rhs.properties[2];
  return os;
}