File: test_extended_xhistogram.cpp

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/***************************************************************************
 * Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht          *
 * Copyright (c) QuantStack                                                 *
 *                                                                          *
 * Distributed under the terms of the BSD 3-Clause License.                 *
 *                                                                          *
 * The full license is in the file LICENSE, distributed with this software. *
 ****************************************************************************/
// This file is generated from test/files/cppy_source/test_extended_xhistogram.cppy by preprocess.py!
// Warning: This file should not be modified directly! Instead, modify the `*.cppy` file.


#include <algorithm>

#include "xtensor/xarray.hpp"
#include "xtensor/xhistogram.hpp"
#include "xtensor/xtensor.hpp"

#include "test_common_macros.hpp"

namespace xt
{
    using namespace xt::placeholders;

    /*py

    a = (np.random.random(1000) * 51).astype(np.int)

    count, bin_edges  = np.histogram(a, 50)

    prob, _  = np.histogram(a, 50, density=True)

    */
    TEST(xtest_extended_histogram, histogram_auto)
    {
        // py_a
        xarray<long> py_a = {
            19, 48, 37, 30, 7,  7,  2,  44, 30, 36, 1,  49, 42, 10, 9,  9,  15, 26, 22, 14, 31, 7,  14, 18,
            23, 40, 10, 26, 30, 2,  30, 8,  3,  48, 49, 41, 15, 4,  34, 22, 6,  25, 1,  46, 13, 33, 15, 26,
            27, 9,  49, 39, 47, 45, 30, 47, 4,  9,  2,  16, 19, 13, 42, 18, 14, 27, 7,  40, 3,  50, 39, 10,
            0,  41, 36, 37, 39, 3,  18, 5,  44, 31, 16, 3,  15, 16, 37, 32, 45, 24, 6,  36, 38, 28, 39, 25,
            26, 21, 1,  5,  1,  32, 16, 25, 46, 12, 20, 38, 11, 3,  14, 8,  47, 41, 32, 44, 40, 9,  45, 27,
            41, 45, 16, 5,  11, 21, 41, 43, 0,  26, 21, 11, 6,  17, 48, 16, 26, 35, 18, 49, 49, 12, 25, 15,
            14, 1,  31, 25, 2,  14, 46, 12, 7,  24, 50, 12, 34, 38, 12, 37, 18, 32, 32, 27, 4,  42, 16, 9,
            2,  30, 34, 0,  26, 11, 32, 8,  35, 19, 47, 7,  17, 5,  47, 44, 13, 33, 41, 28, 27, 12, 4,  45,
            45, 32, 17, 17, 37, 45, 45, 39, 32, 4,  8,  45, 30, 0,  5,  33, 0,  8,  27, 35, 33, 11, 36, 12,
            16, 38, 33, 43, 33, 28, 4,  18, 13, 12, 49, 20, 45, 32, 40, 25, 29, 25, 9,  36, 14, 1,  32, 9,
            47, 48, 46, 18, 0,  47, 21, 49, 49, 43, 15, 19, 43, 16, 8,  28, 47, 35, 29, 4,  31, 50, 7,  26,
            44, 37, 35, 35, 18, 14, 41, 41, 44, 46, 26, 25, 40, 33, 35, 40, 45, 17, 19, 4,  29, 1,  23, 27,
            14, 30, 1,  1,  41, 18, 6,  26, 39, 11, 31, 4,  2,  27, 27, 32, 37, 49, 26, 16, 40, 13, 22, 4,
            1,  49, 42, 35, 20, 8,  7,  12, 28, 36, 33, 14, 48, 37, 28, 31, 21, 12, 18, 38, 0,  5,  2,  2,
            43, 35, 24, 4,  25, 24, 8,  22, 20, 31, 32, 2,  19, 31, 25, 43, 33, 8,  3,  32, 1,  29, 47, 29,
            19, 32, 23, 27, 48, 19, 49, 46, 9,  3,  5,  0,  4,  34, 3,  16, 43, 1,  41, 14, 6,  35, 32, 44,
            37, 40, 14, 9,  38, 41, 50, 21, 18, 39, 17, 47, 43, 21, 38, 38, 5,  46, 25, 42, 16, 45, 19, 0,
            46, 4,  16, 48, 48, 29, 32, 22, 14, 16, 34, 38, 40, 40, 4,  25, 2,  28, 22, 45, 17, 5,  7,  38,
            31, 5,  4,  35, 3,  41, 36, 4,  4,  50, 19, 18, 41, 48, 50, 38, 19, 4,  39, 28, 21, 46, 5,  25,
            0,  23, 2,  6,  5,  33, 38, 29, 49, 19, 14, 44, 11, 49, 0,  49, 2,  45, 26, 50, 3,  28, 49, 26,
            32, 35, 23, 32, 29, 45, 2,  14, 48, 45, 23, 31, 14, 9,  23, 18, 29, 3,  49, 50, 35, 27, 15, 41,
            34, 8,  46, 41, 48, 37, 31, 21, 47, 44, 2,  1,  19, 41, 50, 7,  30, 19, 49, 42, 42, 23, 21, 13,
            2,  44, 41, 50, 50, 28, 39, 48, 43, 12, 22, 6,  48, 30, 11, 34, 31, 18, 5,  34, 26, 39, 26, 43,
            28, 28, 44, 20, 6,  1,  38, 31, 35, 10, 6,  0,  17, 30, 20, 22, 46, 17, 26, 39, 20, 31, 43, 48,
            7,  47, 25, 13, 23, 49, 25, 16, 32, 12, 3,  6,  6,  7,  7,  32, 9,  17, 45, 24, 34, 8,  9,  2,
            8,  14, 9,  4,  6,  23, 10, 18, 25, 35, 2,  40, 32, 4,  44, 46, 3,  14, 41, 38, 9,  10, 18, 24,
            31, 18, 23, 38, 1,  12, 36, 45, 26, 27, 5,  22, 27, 12, 13, 19, 1,  16, 10, 16, 6,  45, 30, 34,
            40, 25, 4,  27, 29, 38, 22, 6,  14, 18, 32, 29, 18, 50, 30, 12, 5,  7,  12, 8,  9,  14, 8,  45,
            4,  26, 20, 50, 5,  20, 49, 44, 41, 13, 8,  34, 47, 28, 29, 14, 39, 9,  16, 21, 25, 12, 5,  31,
            14, 29, 7,  24, 27, 2,  17, 6,  3,  50, 16, 41, 12, 34, 38, 30, 24, 21, 17, 47, 42, 49, 6,  37,
            47, 9,  3,  37, 29, 42, 7,  40, 10, 8,  8,  41, 33, 26, 18, 44, 20, 41, 22, 19, 23, 15, 38, 25,
            11, 45, 19, 27, 46, 31, 5,  47, 32, 17, 7,  40, 31, 27, 45, 40, 7,  15, 12, 37, 1,  29, 38, 44,
            17, 41, 5,  43, 6,  20, 40, 7,  11, 36, 36, 32, 35, 27, 12, 17, 9,  46, 29, 20, 23, 48, 7,  29,
            25, 31, 0,  44, 47, 28, 35, 47, 36, 7,  29, 30, 21, 37, 47, 47, 22, 5,  50, 42, 6,  46, 44, 26,
            30, 20, 2,  17, 40, 0,  17, 20, 27, 46, 17, 17, 37, 23, 11, 23, 7,  8,  25, 21, 46, 18, 29, 32,
            0,  33, 9,  49, 7,  21, 4,  50, 25, 30, 3,  38, 10, 45, 10, 9,  1,  24, 28, 3,  39, 23, 26, 22,
            20, 28, 7,  9,  43, 48, 19, 13, 32, 20, 1,  7,  36, 33, 1,  11, 11, 34, 1,  5,  40, 9,  33, 12,
            5,  12, 36, 43, 42, 20, 34, 10, 14, 45, 0,  4,  10, 1,  9,  29, 21, 45, 41, 17, 13, 19, 30, 13,
            31, 20, 28, 22, 15, 48, 38, 7,  44, 24, 45, 40, 21, 1,  13, 27, 32, 13, 7,  42, 50, 26, 8,  13,
            0,  46, 6,  29, 13, 28, 33, 42, 10, 0,  6,  45, 44, 30, 30, 33, 8,  46, 21, 19, 26, 2,  8,  37,
            4,  30, 12, 19, 14, 18, 36, 15, 28, 24, 33, 47, 37, 10, 1,  13, 30, 2,  25, 30, 17, 39, 5,  3,
            37, 25, 35, 22, 12, 41, 40, 35, 13, 30, 18, 4,  46, 6,  48, 22
        };
        // py_bin_edges
        xarray<double> py_bin_edges = {0.,  1.,  2.,  3.,  4.,  5.,  6.,  7.,  8.,  9.,  10., 11., 12.,
                                       13., 14., 15., 16., 17., 18., 19., 20., 21., 22., 23., 24., 25.,
                                       26., 27., 28., 29., 30., 31., 32., 33., 34., 35., 36., 37., 38.,
                                       39., 40., 41., 42., 43., 44., 45., 46., 47., 48., 49., 50.};
        // py_count
        xarray<long> py_count = {18, 24, 21, 18, 26, 23, 21, 27, 21, 24, 14, 13, 24, 18, 24, 11, 19,
                                 21, 23, 21, 18, 18, 16, 16, 11, 24, 23, 20, 19, 21, 24, 20, 27, 17,
                                 14, 19, 14, 18, 21, 14, 20, 25, 13, 14, 19, 27, 20, 21, 18, 38};
        // py_prob
        xarray<double> py_prob = {0.018, 0.024, 0.021, 0.018, 0.026, 0.023, 0.021, 0.027, 0.021, 0.024,
                                  0.014, 0.013, 0.024, 0.018, 0.024, 0.011, 0.019, 0.021, 0.023, 0.021,
                                  0.018, 0.018, 0.016, 0.016, 0.011, 0.024, 0.023, 0.02,  0.019, 0.021,
                                  0.024, 0.02,  0.027, 0.017, 0.014, 0.019, 0.014, 0.018, 0.021, 0.014,
                                  0.02,  0.025, 0.013, 0.014, 0.019, 0.027, 0.02,  0.021, 0.018, 0.038};

        auto bin_edges = xt::histogram_bin_edges(py_a, std::size_t(50));

        auto count = xt::histogram(py_a, bin_edges);

        auto prob = xt::histogram(py_a, bin_edges, true);

        EXPECT_EQ(xt::cast<double>(bin_edges), py_bin_edges);

        EXPECT_EQ(count, xt::cast<double>(py_count));

        EXPECT_EQ(prob, py_prob);
    }

    /*py

    a = (np.random.random(1000) * 51).astype(np.int)

    count, bin_edges  = np.histogram(a, 30, (10, 40))

    */
    TEST(xtest_extended_histogram, histogram_with_range)
    {
        // py_a
        xarray<long> py_a = {
            9,  27, 44, 37, 41, 33, 35, 43, 12, 24, 11, 50, 48, 2,  35, 47, 9,  28, 46, 1,  35, 15, 47, 49,
            48, 24, 43, 43, 16, 42, 1,  30, 11, 6,  3,  35, 17, 36, 3,  16, 27, 40, 16, 31, 45, 31, 11, 1,
            44, 1,  44, 26, 47, 40, 50, 17, 39, 20, 24, 32, 44, 50, 39, 21, 21, 37, 12, 5,  18, 14, 15, 11,
            2,  0,  50, 21, 19, 34, 11, 48, 40, 4,  21, 44, 48, 23, 31, 8,  50, 11, 48, 33, 30, 26, 11, 9,
            11, 9,  39, 17, 2,  49, 45, 47, 50, 8,  20, 38, 35, 7,  41, 11, 11, 27, 30, 29, 4,  44, 13, 6,
            45, 48, 43, 41, 33, 28, 4,  20, 19, 13, 36, 25, 4,  11, 34, 3,  43, 25, 24, 30, 42, 17, 34, 28,
            13, 44, 40, 33, 43, 44, 36, 42, 35, 34, 31, 38, 8,  44, 44, 1,  42, 6,  17, 37, 8,  41, 42, 25,
            0,  14, 31, 50, 32, 13, 32, 27, 39, 5,  38, 27, 49, 17, 32, 47, 5,  47, 35, 3,  15, 36, 3,  29,
            17, 31, 2,  44, 49, 49, 38, 6,  38, 1,  1,  16, 24, 39, 34, 22, 13, 50, 21, 23, 8,  40, 35, 11,
            4,  34, 33, 13, 48, 7,  22, 48, 21, 32, 20, 13, 50, 20, 45, 11, 10, 1,  33, 18, 44, 24, 49, 9,
            44, 39, 39, 43, 38, 31, 6,  1,  46, 31, 40, 24, 5,  6,  34, 21, 10, 25, 3,  29, 13, 40, 15, 23,
            0,  3,  20, 24, 30, 14, 35, 43, 39, 2,  24, 5,  12, 50, 7,  25, 31, 35, 28, 0,  16, 26, 4,  17,
            1,  4,  20, 6,  28, 35, 40, 10, 8,  5,  32, 36, 1,  47, 2,  27, 36, 44, 36, 40, 17, 41, 4,  45,
            27, 41, 23, 32, 26, 37, 4,  3,  12, 8,  44, 11, 49, 17, 9,  40, 33, 25, 28, 36, 11, 50, 49, 33,
            10, 34, 3,  1,  13, 23, 44, 37, 37, 21, 17, 18, 50, 2,  44, 29, 22, 36, 24, 44, 45, 21, 14, 30,
            46, 10, 31, 32, 37, 6,  36, 46, 9,  12, 49, 9,  43, 25, 12, 44, 22, 26, 18, 30, 8,  19, 49, 13,
            33, 16, 39, 6,  49, 23, 12, 3,  8,  26, 17, 42, 21, 12, 31, 36, 8,  8,  1,  37, 33, 24, 43, 41,
            29, 44, 10, 5,  13, 2,  27, 47, 2,  6,  23, 47, 16, 25, 2,  7,  50, 49, 0,  48, 32, 44, 23, 26,
            24, 34, 7,  1,  15, 35, 10, 34, 49, 4,  34, 22, 44, 9,  35, 42, 48, 34, 25, 31, 44, 29, 1,  47,
            35, 34, 10, 33, 20, 33, 5,  33, 50, 2,  49, 20, 44, 39, 28, 37, 44, 20, 16, 34, 41, 38, 40, 22,
            41, 6,  27, 0,  16, 18, 20, 35, 19, 22, 12, 19, 11, 3,  30, 34, 31, 23, 19, 44, 26, 24, 1,  17,
            19, 20, 29, 27, 31, 39, 41, 36, 48, 0,  9,  0,  33, 45, 12, 47, 3,  47, 17, 5,  24, 13, 14, 15,
            40, 27, 15, 31, 36, 13, 21, 6,  9,  34, 9,  26, 36, 5,  28, 13, 49, 24, 41, 28, 2,  32, 48, 30,
            41, 45, 11, 10, 31, 20, 42, 45, 18, 12, 39, 14, 41, 21, 34, 4,  31, 23, 29, 8,  37, 44, 11, 4,
            1,  32, 30, 27, 11, 19, 30, 25, 50, 6,  35, 20, 21, 36, 35, 50, 6,  5,  36, 29, 13, 4,  4,  45,
            9,  16, 11, 18, 3,  26, 3,  40, 11, 27, 44, 33, 27, 16, 16, 34, 50, 33, 28, 37, 23, 3,  28, 48,
            8,  35, 10, 27, 4,  22, 38, 17, 33, 40, 47, 11, 20, 7,  50, 47, 27, 42, 26, 31, 4,  38, 6,  42,
            39, 36, 1,  15, 13, 18, 4,  47, 28, 15, 20, 22, 30, 26, 46, 25, 50, 43, 10, 47, 5,  41, 19, 44,
            44, 41, 40, 15, 4,  20, 8,  35, 17, 49, 32, 41, 6,  43, 47, 24, 30, 39, 8,  25, 20, 7,  18, 3,
            1,  6,  49, 28, 49, 22, 15, 25, 22, 5,  32, 11, 31, 33, 7,  3,  39, 23, 2,  50, 2,  35, 50, 12,
            7,  6,  15, 5,  35, 3,  25, 50, 41, 31, 15, 31, 26, 21, 6,  45, 22, 9,  18, 21, 42, 37, 39, 0,
            21, 24, 0,  13, 38, 6,  27, 10, 0,  12, 49, 40, 48, 24, 5,  27, 23, 43, 5,  24, 7,  16, 37, 24,
            19, 20, 23, 40, 45, 48, 40, 16, 35, 22, 12, 42, 1,  45, 23, 32, 33, 45, 32, 31, 3,  26, 7,  37,
            26, 34, 2,  4,  36, 3,  3,  0,  48, 37, 18, 15, 17, 39, 33, 9,  8,  5,  33, 38, 13, 1,  4,  49,
            15, 39, 31, 19, 10, 6,  31, 39, 32, 27, 2,  49, 40, 14, 49, 30, 29, 38, 41, 33, 6,  17, 47, 11,
            18, 22, 22, 31, 48, 12, 6,  10, 45, 32, 14, 41, 43, 43, 46, 12, 38, 23, 42, 37, 39, 33, 9,  27,
            50, 47, 2,  8,  6,  37, 41, 10, 25, 42, 37, 27, 30, 25, 15, 28, 35, 44, 32, 38, 8,  23, 0,  12,
            37, 50, 5,  20, 40, 10, 28, 37, 31, 9,  18, 39, 28, 0,  38, 1,  38, 10, 48, 18, 16, 7,  15, 44,
            50, 18, 22, 36, 45, 30, 19, 21, 35, 0,  31, 18, 40, 4,  29, 24, 32, 3,  29, 28, 28, 30, 34, 41,
            13, 42, 25, 3,  2,  17, 40, 36, 40, 26, 22, 7,  16, 22, 4,  11, 30, 37, 50, 47, 32, 21, 32, 40,
            6,  20, 42, 19, 29, 29, 9,  18, 17, 1,  1,  42, 13, 26, 15, 47, 13, 21, 44, 42, 9,  40, 23, 24,
            6,  4,  37, 25, 22, 37, 39, 8,  31, 6,  38, 33, 48, 3,  2,  14
        };
        // py_bin_edges
        xarray<double> py_bin_edges = {10., 11., 12., 13., 14., 15., 16., 17., 18., 19., 20.,
                                       21., 22., 23., 24., 25., 26., 27., 28., 29., 30., 31.,
                                       32., 33., 34., 35., 36., 37., 38., 39., 40.};
        // py_count
        xarray<long> py_count = {17, 25, 17, 21, 9,  18, 16, 20, 17, 13, 21, 19, 19, 18, 22,
                                 18, 17, 21, 18, 14, 18, 28, 21, 24, 20, 24, 20, 23, 17, 47};

        auto bin_edges = xt::histogram_bin_edges(py_a, 10, 40, std::size_t(30));

        auto count = xt::histogram(py_a, bin_edges);

        EXPECT_EQ(xt::cast<double>(bin_edges), py_bin_edges);

        EXPECT_EQ(count, xt::cast<double>(py_count));
    }
}