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

        public void VarianceTest()
        {
            TDistribution target = new TDistribution(3);
            double actual = target.Variance;
            double expected = 3;
            Assert.AreEqual(expected, actual);

            target = new TDistribution(2);
            actual = target.Variance;
            expected = Double.PositiveInfinity;
            Assert.AreEqual(expected, actual);

            target = new TDistribution(1);
            actual = target.Variance;
            Assert.IsTrue(Double.IsNaN(actual));
        }