Accord.Tests.Statistics.ParetoDistributionTest.ParetoDistributionConstructorTest C# (CSharp) Method

        public void ParetoDistributionConstructorTest()
        {
            double expected, actual;

            {
                ParetoDistribution target = new ParetoDistribution(3.1, 4.42);
                actual = target.ProbabilityDensityFunction(-1);
                expected = 0.0;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(0);
                expected = 0.0;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(3.09);
                expected = 0.0;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(3.1);
                expected = 1.4258064;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(3.2);
                expected = 1.20040576;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(5.8);
                expected = 0.0478037;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));

                actual = target.ProbabilityDensityFunction(10);
                expected = 0.00249598;
                Assert.AreEqual(expected, actual, 1e-7);
                Assert.IsFalse(Double.IsNaN(actual));
            }
        }