Accord.Tests.Math.MetricsTest.PearsonCorrelationTest C# (CSharp) Method

        public void PearsonCorrelationTest()
        {
            PearsonCorrelation sim = new PearsonCorrelation();

            // Assert.Throws<ArgumentException>(() => sim.GetSimilarityScore(p0, q4));

            double result = sim.GetSimilarityScore(p0, q0);
            Assert.AreEqual(result, -1);

            result = sim.GetSimilarityScore(p1, q1);
            Assert.AreEqual(result, 1);

            result = sim.GetSimilarityScore(p2, q2);
            Assert.AreEqual(result, 0);

            result = sim.GetSimilarityScore(p3, q3);
            Assert.AreEqual(result, 0);

            result = sim.GetSimilarityScore(p4, q4);
            Assert.AreEqual(result, 0.396059, 0.00001);

            result = sim.GetSimilarityScore(p5, q5);
            Assert.AreEqual(result, 0.85470, 0.00001);
        }
    }