Accord.Tests.Statistics.TDistributionTest.ProbabilityDensityFunctionTest C# (CSharp) Method

        public void ProbabilityDensityFunctionTest()
        {
            TDistribution target = new TDistribution(1);
            double expected = 0.31830988618379075;
            double actual = target.ProbabilityDensityFunction(0);
            Assert.AreEqual(expected, actual);

            expected = 0.017076710632177614;
            actual = target.ProbabilityDensityFunction(4.2);
            Assert.AreEqual(expected, actual);

            target = new TDistribution(2);
            expected = 0.35355339059327379;
            actual = target.ProbabilityDensityFunction(0);
            Assert.AreEqual(expected, actual);

            expected = 0.011489146700777093;
            actual = target.ProbabilityDensityFunction(4.2);
            Assert.AreEqual(expected, actual);

            target = new TDistribution(3);
            expected = 0.36755259694786141;
            actual = target.ProbabilityDensityFunction(0);
            Assert.AreEqual(expected, actual);

            expected = 0.0077650207237835792;
            actual = target.ProbabilityDensityFunction(4.2);
            Assert.AreEqual(expected, actual);
        }