Accord.Tests.Statistics.MultivariateNormalDistributionTest.FitTest5 C# (CSharp) Méthode

        public void FitTest5()
        {
            double[][] observations = 
            {
                new double[] { 1, 2 },
                new double[] { 1, 2 },
                new double[] { 0, 1 },
                new double[] { 5, 7 }
            };

            double[] weights = { 1, 1, 0, 0 };

            var target = new MultivariateNormalDistribution(2);

            bool thrown = false;
            try { target.Fit(observations, weights); }
            catch (NonPositiveDefiniteMatrixException) { thrown = true; }

            Assert.IsTrue(thrown);

            NormalOptions options = new NormalOptions() { Robust = true };

            // No exception thrown
            target.Fit(observations, weights, options);

            checkDegenerate(target);
        }