...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::histogram::algorithm::slice_and_rebin — Slice and rebin option to be used in reduce() (convenience for 1D histograms).
// In header: <boost/histogram/algorithm/reduce.hpp> reduce_option slice_and_rebin(axis::index_type begin, axis::index_type end, unsigned merge);