Accord.Tests.Statistics.ShapiroWilkTestTest.ShapiroWilkTest C# (CSharp) Method

        public void ShapiroWilkTest()
        {
            // Tested against R's shapiro.test(x)

            double[] samples =
            {
                0.11, 7.87, 4.61, 10.14, 7.95, 3.14, 0.46, 4.43, 
                0.21, 4.75, 0.71, 1.52, 3.24, 0.93, 0.42, 4.97,
                9.53, 4.55, 0.47, 6.66 
            };

            /* 
                samples <- c(0.11, 7.87, 4.61, 10.14, 7.95, 3.14, 0.46, 4.43, 0.21,
                  + 4.75, 0.71, 1.52, 3.24, 0.93, 0.42, 4.97, 9.53, 4.55, 0.47, 6.66)
             
                shapiro.test(samples)
             
                W = 0.90050, p-value = 0.04209
             */

            var target = new ShapiroWilkTest(samples);

            Assert.AreEqual(0.90050, target.Statistic, 1e-4);
            Assert.AreEqual(0.04209, target.PValue, 1e-5);
        }