public void ConstructorTest()
        {
            var uniform = new UniformContinuousDistribution(a: 0.42, b: 1.1);

            double mean   = uniform.Mean;                                    // 0.76
            double median = uniform.Median;                                  // 0.76
            double var    = uniform.Variance;                                // 0.03853333333333335
            double mode   = uniform.Mode;                                    // 0.76000000000000001

            double cdf  = uniform.DistributionFunction(x: 0.9);              // 0.70588235294117641
            double pdf  = uniform.ProbabilityDensityFunction(x: 0.9);        // 1.4705882352941173
            double lpdf = uniform.LogProbabilityDensityFunction(x: 0.9);     // 0.38566248081198445

            double ccdf = uniform.ComplementaryDistributionFunction(x: 0.9); // 0.29411764705882359
            double icdf = uniform.InverseDistributionFunction(p: cdf);       // 0.9

            double hf  = uniform.HazardFunction(x: 0.9);                     // 4.9999999999999973
            double chf = uniform.CumulativeHazardFunction(x: 0.9);           // 1.2237754316221154

            string str = uniform.ToString(CultureInfo.InvariantCulture);     // "U(x; a = 0.42, b = 1.1)"

            Assert.AreEqual(0.76, mean);
            Assert.AreEqual(0.76, median);
            Assert.AreEqual(0.76000000000000001, mode);
            Assert.AreEqual(0.03853333333333335, var);
            Assert.AreEqual(1.2237754316221154, chf);
            Assert.AreEqual(0.70588235294117641, cdf);
            Assert.AreEqual(1.4705882352941173, pdf);
            Assert.AreEqual(0.38566248081198445, lpdf);
            Assert.AreEqual(4.9999999999999973, hf);
            Assert.AreEqual(0.29411764705882359, ccdf);
            Assert.AreEqual(0.9, icdf);
            Assert.AreEqual("U(x; a = 0.42, b = 1.1)", str);

            var range1 = uniform.GetRange(0.95);
            var range2 = uniform.GetRange(0.99);
            var range3 = uniform.GetRange(0.01);

            Assert.AreEqual(0.45400000000000001, range1.Min);
            Assert.AreEqual(1.0660000000000001, range1.Max);
            Assert.AreEqual(0.42680000000000001, range2.Min);
            Assert.AreEqual(1.0932000000000002, range2.Max);
            Assert.AreEqual(0.42680000000000001, range3.Min);
            Assert.AreEqual(1.0932000000000002, range3.Max);

            Assert.AreEqual(0.42, uniform.Support.Min);
            Assert.AreEqual(1.1, uniform.Support.Max);

            Assert.AreEqual(uniform.InverseDistributionFunction(0), uniform.Support.Min);
            Assert.AreEqual(uniform.InverseDistributionFunction(1), uniform.Support.Max);
        }
        public void ConstructorTest()
        {
            var uniform = new UniformContinuousDistribution(a: 0.42, b: 1.1);

            double mean = uniform.Mean;     // 0.76
            double median = uniform.Median; // 0.76
            double var = uniform.Variance;  // 0.03853333333333335

            double cdf = uniform.DistributionFunction(x: 0.9); // 0.70588235294117641
            double pdf = uniform.ProbabilityDensityFunction(x: 0.9); // 1.4705882352941173
            double lpdf = uniform.LogProbabilityDensityFunction(x: 0.9); // 0.38566248081198445

            double ccdf = uniform.ComplementaryDistributionFunction(x: 0.9); // 0.29411764705882359
            double icdf = uniform.InverseDistributionFunction(p: cdf); // 0.9

            double hf = uniform.HazardFunction(x: 0.9); // 4.9999999999999973
            double chf = uniform.CumulativeHazardFunction(x: 0.9); // 1.2237754316221154

            string str = uniform.ToString(CultureInfo.InvariantCulture); // "U(x; a = 0.42, b = 1.1)"

            Assert.AreEqual(0.76, mean);
            Assert.AreEqual(0.76, median);
            Assert.AreEqual(0.03853333333333335, var);
            Assert.AreEqual(1.2237754316221154, chf);
            Assert.AreEqual(0.70588235294117641, cdf);
            Assert.AreEqual(1.4705882352941173, pdf);
            Assert.AreEqual(0.38566248081198445, lpdf);
            Assert.AreEqual(4.9999999999999973, hf);
            Assert.AreEqual(0.29411764705882359, ccdf);
            Assert.AreEqual(0.9, icdf);
            Assert.AreEqual("U(x; a = 0.42, b = 1.1)", str);
        }
示例#3
0
        public void MedianTest()
        {
            double a = 1;
            double b = 6;
            UniformContinuousDistribution target = new UniformContinuousDistribution(a, b);

            Assert.AreEqual(target.Median, target.InverseDistributionFunction(0.5));
        }
        public void MedianTest()
        {
            double a = 1;
            double b = 6;
            UniformContinuousDistribution target = new UniformContinuousDistribution(a, b);

            Assert.AreEqual(target.Median, target.InverseDistributionFunction(0.5));
        }