MathPHP\Statistics\CorrelationTest::dataProviderForKendallsTau PHP Метод

    public function dataProviderForKendallsTau()
    {
        return [[[1, 2, 5, 3, 4], [1, 4, 2, 3, 5], 0.2], [[2, 4, 7, 9], [4, 8, 7, 9], 0.666667], [[5, 4, 3, 2], [4, 5, 6, 7], -1], [[85, 98, 90, 83, 57, 63, 77, 99, 80, 96, 69], [85, 95, 80, 75, 70, 65, 73, 93, 79, 88, 74], 0.8179999999999999], [[4, 5, 5, 6, 5, 8], [4, 6, 7, 8, 7, 8], 0.880705], [[12, 14, 14, 17, 19, 19, 19, 19, 19, 20, 21, 21, 21, 21, 21, 22, 23, 24, 24, 24, 26, 26, 27], [11, 4, 4, 2, 0, 0, 0, 0, 0, 0, 4, 0, 4, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0], -0.376201540231705], [[0.7, 0.8, 0.8, 0.8, 1.2, 1.3, 1.6, 1.8, 1.9, 2.4, 2.5, 2.7, 2.9, 2.9, 3.9, 5.8, 6.5, 7.9, 9.1], [300, 211, 227, 297, 199, 285, 207, 167, 266, 191, 211, 172, 131, 220, 167, 115, 86, 107, 71], -0.696]];
    }