Accord.Tests.Statistics.MultinomialLogisticRegressionAnalysisTest.learn_test_3 C# (CSharp) Method

        public void learn_test_3()
        {
            double[][] inputs;
            int[] outputs;

            MultinomialLogisticRegressionTest.CreateInputOutputsExample2(out inputs, out outputs);

            var analysis = new MultinomialLogisticRegressionAnalysis();

            int inputCount = 5;
            int coeffCount = inputCount + 1;

            analysis.Iterations = 100;
            analysis.Tolerance = 1e-6;

            var mlr = analysis.Learn(inputs, outputs);

            foreach (var coefficient in analysis.Coefficients)
            {
                Assert.IsNotNull(coefficient.Analysis);
                Assert.IsNotNull(coefficient.Confidence);
                Assert.IsNotNull(coefficient.ConfidenceLower);
                Assert.IsNotNull(coefficient.ConfidenceUpper);
                Assert.IsNotNull(coefficient.Name);
                Assert.IsNotNull(coefficient.Class);
                Assert.IsNotNull(coefficient.StandardError);
                Assert.IsNotNull(coefficient.Value);
            }


            Assert.AreEqual(13, analysis.Coefficients.Count);
            Assert.AreEqual(2, analysis.CoefficientValues.Length);

            var class1 = analysis.CoefficientValues[0];
            Assert.AreEqual(-11.774547061739975, class1[0], 1e-3);
            Assert.AreEqual(0.523813075806107, class1[1], 1e-4);
            Assert.AreEqual(0.36820307277024716, class1[2], 1e-4);
            Assert.AreEqual(0, class1[3], 1e-6);
            Assert.AreEqual(0, class1[4], 1e-6);
            Assert.AreEqual(0, class1[5], 1e-6);

            var class2 = analysis.CoefficientValues[1];
            Assert.AreEqual(-22.721272157115514, class2[0], 1e-3);
            Assert.AreEqual(0.46593949381162203, class2[1], 1e-4);
            Assert.AreEqual(0.68590438098052586, class2[2], 1e-4);
            Assert.AreEqual(0, class2[3], 1e-6);
            Assert.AreEqual(0, class2[4], 1e-6);
            Assert.AreEqual(0, class2[5], 1e-6);
        }