public string GetValue(double index)
{
if (Cdf == null)
{
ComputeProbabilities();
}
return(Cdf.FirstOrDefault(x => x.Item2 >= index).Item1);
}
public void GenerteFromHistogram()
{
var graph = Cdf.GenerateFromHistogram(SimpleDistribution);
foreach (var tuple in SimpleDistributionTestValues)
{
int actual = graph.F(tuple.Item1);
Assert.AreEqual(tuple.Item2, actual, $"F({(double)tuple.Item1})={actual} ... != {tuple.Item2}");
}
}
public void When_ConstPdf_Expect_Reference()
{
// arrange
var curve = new Curve();
curve.Add(new Point(-1, 0.5));
curve.Add(new Point(1, 0.5));
var pdf = new Pdf(curve);
// act
var cdf = new Cdf(pdf, 100);
// assert
Assert.Equal(100, cdf.PointsCount);
}
public void NoOneValueFailsTest()
{
Assert.Throws <ArgumentOutOfRangeException>(() => Cdf.GenerateFromHistogram(NoOneValue));
}
public void EmptyInputFailsTest()
{
Assert.Throws <ArgumentException>(() => Cdf.GenerateFromHistogram(EmptyTupleArray));
}