xAOD::MatrixHelpers Namespace Reference

Functions
template<int N>
void	compress (const Eigen::Matrix< float, N, N, 0, N, N > &covMatrix, std::vector< float > &vec)
template<int N>
void	expand (std::vector< float >::const_iterator it, std::vector< float >::const_iterator, Eigen::Matrix< float, N, N, 0, N, N > &covMatrix)

Function Documentation

compress()

template<int N>

void xAOD::MatrixHelpers::compress	(	const Eigen::Matrix< float, N, N, 0, N, N > &	covMatrix,
		std::vector< float > &	vec
	)

Definition at line 27 of file Egamma_v1.cxx.

                                                                                     {
  vec.reserve(Amg::CalculateCompressedSize(N));
  for (unsigned int i = 0; i < N ; ++i){
    for (unsigned int j = 0; j <= i; ++j){
      vec.push_back(covMatrix(i,j));
    }
  }
}

expand()

template<int N>

void xAOD::MatrixHelpers::expand	(	std::vector< float >::const_iterator	it,
		std::vector< float >::const_iterator	,
		Eigen::Matrix< float, N, N, 0, N, N > &	covMatrix
	)

Definition at line 36 of file Egamma_v1.cxx.

                                                                                     {
  for (unsigned int i = 0; i < N; ++i) {
    for (unsigned int j = 0; j <= i; ++j) {
      covMatrix.fillSymmetric(i,j, *it);
      ++it;
    }
  }
}