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.. highlight:: c
.. role:: red
.. role:: green
.. role:: param


.. _triqs__stat__accumulator__log_bin_errors_all_reduce:

triqs::stat::accumulator::log_bin_errors_all_reduce
===================================================

*#include <triqs/stat/accumulator.hpp>*



**Synopsis**

 .. rst-class:: cppsynopsis

       | auto :red:`log_bin_errors_all_reduce` (:ref:`communicator <mpi__communicator>` :param:`c`) const





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).





Parameters
^^^^^^^^^^

 * :param:`c` TRIQS MPI communicator


Returns
^^^^^^^

std::vector, where element v[n] contains the standard error of data binned with a bin capacity of :math:`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.