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10c19df918
* Added fraction accumulator * Added binomial proportion interval computers: Wald, Wilson Score, Clopper Pearson, Jeffreys * Width of intervals for all classes can be set via deviation or confidence_level * Support valarray in histogram::fill * Add fraction and count to user guide Co-authored-by: Hans Dembinski <hans.dembinski@gmail.com> Co-authored-by: Hans Dembinski <HDembinski@users.noreply.github.com>
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
// Copyright 2015-2018 Hans Dembinski
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <array>
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#include <boost/core/lightweight_test.hpp>
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#include <boost/histogram/accumulators/fraction.hpp>
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#include <boost/histogram/accumulators/ostream.hpp>
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#include <boost/histogram/axis/integer.hpp>
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#include <boost/histogram/histogram.hpp>
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#include <boost/histogram/make_histogram.hpp>
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#include <boost/histogram/ostream.hpp>
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#include <valarray>
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#include <vector>
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#include "throw_exception.hpp"
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using namespace boost::histogram;
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int main() {
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using fraction_t = accumulators::fraction<>;
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auto h = make_histogram_with(dense_storage<fraction_t>(), axis::integer<>(0, 2));
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h(0, sample(true));
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h(0, sample(false));
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h(1, sample(true));
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BOOST_TEST_EQ(h.at(0), (fraction_t{1, 1}));
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BOOST_TEST_EQ(h.at(1), (fraction_t{1, 0}));
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// cannot use std::vector<bool> because of vector specialization
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std::vector<char> s = {true, false};
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std::vector<int> x = {0, 1};
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h.fill(x, sample(s));
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BOOST_TEST_EQ(h.at(0), (fraction_t{2, 1}));
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BOOST_TEST_EQ(h.at(1), (fraction_t{1, 1}));
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// any contiguous container of bool works which is not specialized
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std::array<bool, 2> s2 = {false, true};
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h.fill(x, sample(s2));
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BOOST_TEST_EQ(h.at(0), (fraction_t{2, 2}));
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BOOST_TEST_EQ(h.at(1), (fraction_t{2, 1}));
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std::valarray<bool> s3 = {false, true};
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h.fill(x, sample(s3));
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BOOST_TEST_EQ(h.at(0), (fraction_t{2, 3}));
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BOOST_TEST_EQ(h.at(1), (fraction_t{3, 1}));
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return boost::report_errors();
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}
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