public void BetaFitTest1()
{
double[] x = { 0.1, 0.5, 0.3, 0.8, 0.6, 0.7, 0.9, 0.9, 0.9, 0.9 };
var target = GeneralizedBetaDistribution.Standard(0, 1);
target.Fit(x);
Assert.AreEqual(1.1810718232044195, target.Alpha, 1e-10);
Assert.AreEqual(0.60843093922651903, target.Beta, 1e-10);
}