Accord.Tests.Statistics.CircularTest.WeightedKappaTest C# (CSharp) Method

        public void WeightedKappaTest()
        {
            DataTable table = new DataTable();

            // Add multiple columns at once:
            table.Columns.Add("columnName1", "columnName2");

            double[] angles = { 0.1242, 1.2425, 0.6712 };
            double[] weights = { 3, 1, 1 };

            weights = weights.Divide(weights.Sum());

            double expectedMean = 0.4436528;
            double expectedKappa = 5.497313;

            double actualMean = Circular.WeightedMean(angles, weights);
            Assert.AreEqual(expectedMean, actualMean, 1e-6);

            double actualKappa = Circular.WeightedConcentration(angles, weights);
            Assert.AreEqual(expectedKappa, actualKappa, 1e-6);

            actualKappa = Circular.WeightedConcentration(angles, weights, actualMean);
            Assert.AreEqual(expectedKappa, actualKappa, 1e-6);
        }