Accord.Tests.Statistics.BinomialDistributionTest.DistributionFunctionTest2 C# (CSharp) Method

        public void DistributionFunctionTest2()
        {
            // http://www.stat.yale.edu/Courses/1997-98/101/binom.htm
            // Verified in http://stattrek.com/online-calculator/binomial.aspx

            double[] expected = { 0.0260838, 0.130419, 0.3287, 0.5665, 0.7687, 0.8982, 0.9629, 0.9887, 0.9972, 0.9994 };

            int trials = 20;
            double probability = 0.166667;
            BinomialDistribution target = new BinomialDistribution(trials, probability);

            for (int i = 0; i < expected.Length; i++)
            {
                double actual = target.DistributionFunction(i);
                Assert.AreEqual(expected[i], actual, 1e-4);
                Assert.IsFalse(Double.IsNaN(actual));
            }
        }