Accord.Tests.Statistics.CoxProportionalHazardsTest.RunTest_Compat C# (CSharp) Метод

        public void RunTest_Compat()
        {
            // Data from: http://www.sph.emory.edu/~cdckms/CoxPH/prophaz2.html

            double[,] data =
            {
                { 50,  1, 0 },
                { 70,  2, 1 },
                { 45,  3, 0 },
                { 35,  5, 0 },
                { 62,  7, 1 },
                { 50, 11, 0 },
                { 45,  4, 0 },
                { 57,  6, 0 },
                { 32,  8, 0 },
                { 57,  9, 1 },
                { 60, 10, 1 },
            };

            ProportionalHazards regression = new ProportionalHazards(1);

            regression.Coefficients[0] = 0.37704239281494084;
            regression.StandardErrors[0] = 0.25415755113043753;

            double[][] inputs = data.GetColumn(0).ToJagged();
            double[] time = data.GetColumn(1);
            int[] output = data.GetColumn(2).ToInt32();


            {
                double actual = -2 * regression.GetPartialLogLikelihood(inputs, time, output);
                double expected = 4.0505;
                Assert.AreEqual(expected, actual, 1e-4);
                Assert.IsFalse(Double.IsNaN(actual));
            }

            {
                var test = regression.GetWaldTest(0);
                Assert.AreEqual(0.1379, test.PValue, 1e-4);
            }

            {
                var ci = regression.GetConfidenceInterval(0);
                Assert.AreEqual(0.8859, ci.Min, 1e-4);
                Assert.AreEqual(2.3993, ci.Max, 1e-4);
            }


            {
                double actual = regression.GetHazardRatio(0);
                double expected = 1.4580;
                Assert.AreEqual(expected, actual, 1e-4);
            }

            {
                var chi = regression.ChiSquare(inputs, time, output);
                Assert.AreEqual(7.3570, chi.Statistic, 1e-4);
                Assert.AreEqual(1, chi.DegreesOfFreedom);
                Assert.AreEqual(0.0067, chi.PValue, 1e-3);
            }

        }
    }