public void ConstructorTest() { var F = new FDistribution(degrees1: 8, degrees2: 5); double mean = F.Mean; // 1.6666666666666667 double median = F.Median; // 1.0545096252132447 double var = F.Variance; // 7.6388888888888893 double cdf = F.DistributionFunction(x: 0.27); // 0.049463408057268315 double pdf = F.ProbabilityDensityFunction(x: 0.27); // 0.45120469723580559 double lpdf = F.LogProbabilityDensityFunction(x: 0.27); // -0.79583416831212883 double ccdf = F.ComplementaryDistributionFunction(x: 0.27); // 0.95053659194273166 double icdf = F.InverseDistributionFunction(p: cdf); // 0.27 double hf = F.HazardFunction(x: 0.27); // 0.47468419528555084 double chf = F.CumulativeHazardFunction(x: 0.27); // 0.050728620222091653 string str = F.ToString(CultureInfo.InvariantCulture); // F(x; df1 = 8, df2 = 5) Assert.AreEqual(1.6666666666666667, mean); Assert.AreEqual(1.0545096252132447, median); Assert.AreEqual(7.6388888888888893, var); Assert.AreEqual(0.050728620222091653, chf); Assert.AreEqual(0.049463408057268315, cdf); Assert.AreEqual(0.45120469723580559, pdf); Assert.AreEqual(-0.79583416831212883, lpdf); Assert.AreEqual(0.47468419528555084, hf); Assert.AreEqual(0.95053659194273166, ccdf); Assert.AreEqual(0.27, icdf); Assert.AreEqual("F(x; df1 = 8, df2 = 5)", str); }
public void ConstructorTest() { var F = new FDistribution(degrees1: 8, degrees2: 5); double mean = F.Mean; // 1.6666666666666667 double median = F.Median; // 1.0545096252132447 double var = F.Variance; // 7.6388888888888893 double mode = F.Mode; // 0.5357142857142857 double cdf = F.DistributionFunction(x: 0.27); // 0.049463408057268315 double pdf = F.ProbabilityDensityFunction(x: 0.27); // 0.45120469723580559 double lpdf = F.LogProbabilityDensityFunction(x: 0.27); // -0.79583416831212883 double ccdf = F.ComplementaryDistributionFunction(x: 0.27); // 0.95053659194273166 double icdf = F.InverseDistributionFunction(p: cdf); // 0.27 double hf = F.HazardFunction(x: 0.27); // 0.47468419528555084 double chf = F.CumulativeHazardFunction(x: 0.27); // 0.050728620222091653 string str = F.ToString(CultureInfo.InvariantCulture); // F(x; df1 = 8, df2 = 5) Assert.AreEqual(1.6666666666666667, mean); Assert.AreEqual(1.0545096252132447, median); Assert.AreEqual(7.6388888888888893, var); Assert.AreEqual(0.5357142857142857, mode); Assert.AreEqual(0.050728620222091653, chf); Assert.AreEqual(0.049463408057268315, cdf); Assert.AreEqual(0.45120469723580559, pdf); Assert.AreEqual(-0.79583416831212883, lpdf); Assert.AreEqual(0.47468419528555084, hf); Assert.AreEqual(0.95053659194273166, ccdf); Assert.AreEqual(0.27, icdf); Assert.AreEqual("F(x; df1 = 8, df2 = 5)", str); var range1 = F.GetRange(0.95); var range2 = F.GetRange(0.99); var range3 = F.GetRange(0.01); Assert.AreEqual(0.27118653875813753, range1.Min); Assert.AreEqual(4.8183195356568689, range1.Max); Assert.AreEqual(0.15078805233761733, range2.Min); Assert.AreEqual(10.289311046135927, range2.Max); Assert.AreEqual(0.1507880523376173, range3.Min); Assert.AreEqual(10.289311046135927, range3.Max); }