Returns the standard errors for data with different power-of-two capacity, reduced from data over all MPI threads. The final answer is reduced only to the zero MPI thread (not all reduce).
- c TRIQS MPI communicator
std::vector, where element v[n] contains the standard error of data binned with a bin capacity of \(2^n\). The return type is deduced from nda::real(T), where T is the type defining the accumulator. Reduced only to zero MPI thread.