public void SkewnessTest()
        {
            double[]         DataPoints = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 };
            DescriptiveStats statsCalc  = new DescriptiveStats();
            var result = statsCalc.Skewness(DataPoints);

            Assert.AreEqual(0.0, result);
        }