public void IncorrectBinCount()
{
Assert.That(() =>
{
var ls = new LidstoneProbabilityDistribution <string>(_fd, 1, _fd.ObservedSamples.Count);
}, Throws.TypeOf <ArgumentOutOfRangeException>());
}
public void NoSamples()
{
var ls = new LidstoneProbabilityDistribution <string>(new FrequencyDistribution <string>(), 1, 1);
Assert.That(ls["a"], Is.EqualTo(0));
Assert.That(ls["b"], Is.EqualTo(0));
Assert.That(ls["c"], Is.EqualTo(0));
Assert.That(ls.Discount, Is.EqualTo(0));
}
public void ProbabilityTwoUnseen()
{
var ls = new LidstoneProbabilityDistribution <string>(_fd, 1, _fd.ObservedSamples.Count + 2);
Assert.That(ls["a"], Is.EqualTo(0.01869).Within(0.00001));
Assert.That(ls["c"], Is.EqualTo(0.02803).Within(0.00001));
Assert.That(ls["d"], Is.EqualTo(0.03738).Within(0.00001));
Assert.That(ls["o"], Is.EqualTo(0.08411).Within(0.00001));
Assert.That(ls["q"], Is.EqualTo(0.10280).Within(0.00001));
Assert.That(ls["t"], Is.EqualTo(0.00934).Within(0.00001));
Assert.That(ls["z"], Is.EqualTo(0.00934).Within(0.00001));
}
public void ProbabilityOneUnseen()
{
var ls = new LidstoneProbabilityDistribution <string>(_fd, 1, _fd.ObservedSamples.Count + 1);
Assert.That(ls["a"], Is.EqualTo(0.01886).Within(0.00001));
Assert.That(ls["c"], Is.EqualTo(0.02830).Within(0.00001));
Assert.That(ls["d"], Is.EqualTo(0.03773).Within(0.00001));
Assert.That(ls["o"], Is.EqualTo(0.08490).Within(0.00001));
Assert.That(ls["q"], Is.EqualTo(0.10377).Within(0.00001));
Assert.That(ls["t"], Is.EqualTo(0.00943).Within(0.00001));
Assert.That(ls["z"], Is.EqualTo(0.00943).Within(0.00001));
}