public void EstimateTest()
{
double[] observations = { 2, 2, 2, 2, 2 };
NormalOptions options = new NormalOptions() { Regularization = 0.1 };
LognormalDistribution actual = LognormalDistribution.Estimate(observations, options);
Assert.AreEqual(System.Math.Log(2), actual.Location);
Assert.AreEqual(System.Math.Sqrt(0.1), actual.Shape);
}