Accord.Tests.Statistics.GeneralConfusionMatrixTest.KappaTest5 C# (CSharp) Method

        public void KappaTest5()
        {
            // Example from University of York Department of Health Sciences,
            // Measurement in Health and Disease, Cohen's Kappa
            // http://www-users.york.ac.uk/~mb55/msc/clinimet/week4/kappash2.pdf

            // warning: the paper seems to use an outdated variance formula for kappa.


            int[,] matrix =
            {
                { 61,  2 },
                {  6, 25 },
            };

            GeneralConfusionMatrix target = new GeneralConfusionMatrix(matrix);


            Assert.AreEqual(2, target.Classes);
            Assert.AreEqual(94, target.Samples);

            Assert.AreEqual(0.801, target.Kappa, 1e-4);
            Assert.AreEqual(0.067, target.StandardError, 1e-3);
        }