mirror of
https://github.com/boostorg/histogram.git
synced 2025-05-09 14:57:57 +00:00
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
// Copyright 2019 Hans Dembinski
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// (See accompanying file LICENSE_1_0.txt
|
|
// or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
// clang-format off
|
|
|
|
//[ getting_started_listing_05
|
|
|
|
//////////////// Begin: put this in header file ////////////////////
|
|
|
|
#include <algorithm> // std::max_element
|
|
#include <boost/format.hpp> // only needed for printing
|
|
#include <boost/histogram.hpp> // make_histogram, integer, indexed
|
|
#include <iostream> // std::cout, std::endl
|
|
#include <sstream> // std::ostringstream
|
|
#include <tuple>
|
|
#include <vector>
|
|
|
|
// use this when axis configuration is fix to get highest performance
|
|
struct HolderOfStaticHistogram {
|
|
// put axis types here
|
|
using axes_t = std::tuple<
|
|
boost::histogram::axis::regular<>,
|
|
boost::histogram::axis::integer<>
|
|
>;
|
|
using hist_t = boost::histogram::histogram<axes_t>;
|
|
hist_t hist_;
|
|
};
|
|
|
|
// use this when axis configuration should be flexible
|
|
struct HolderOfDynamicHistogram {
|
|
// put all axis types here that you are going to use
|
|
using axis_t = boost::histogram::axis::variant<
|
|
boost::histogram::axis::regular<>,
|
|
boost::histogram::axis::variable<>,
|
|
boost::histogram::axis::integer<>
|
|
>;
|
|
using axes_t = std::vector<axis_t>;
|
|
using hist_t = boost::histogram::histogram<axes_t>;
|
|
hist_t hist_;
|
|
};
|
|
|
|
//////////////// End: put this in header file ////////////////////
|
|
|
|
int main() {
|
|
using namespace boost::histogram;
|
|
|
|
HolderOfStaticHistogram hs;
|
|
hs.hist_ = make_histogram(axis::regular<>(5, 0, 1), axis::integer<>(0, 3));
|
|
// now assign a different histogram
|
|
hs.hist_ = make_histogram(axis::regular<>(3, 1, 2), axis::integer<>(4, 6));
|
|
// hs.hist_ = make_histogram(axis::regular<>(5, 0, 1)); does not work;
|
|
// the static histogram cannot change the number or order of axis types
|
|
|
|
HolderOfDynamicHistogram hd;
|
|
hd.hist_ = make_histogram(axis::regular<>(5, 0, 1), axis::integer<>(0, 3));
|
|
// now assign a different histogram
|
|
hd.hist_ = make_histogram(axis::regular<>(3, -1, 2));
|
|
// and assign another
|
|
hd.hist_ = make_histogram(axis::integer<>(0, 5), axis::integer<>(3, 5));
|
|
}
|
|
|
|
//]
|