public void BivariateSampleCopy() { // test independency of copy BivariateSample sample1 = new BivariateSample(); sample1.Add(1.0, 2.0); BivariateSample sample2 = sample1.Copy(); sample2.Add(3.0, 4.0); Assert.IsTrue(sample1.Count == 1); Assert.IsTrue(sample2.Count == 2); }