public async Task TestChiSquareDistribution01()
{
using var rng = new MultiThreadedRng();
var dist = new FastRng.Double.Distributions.ChiSquareK10(rng);
var fqa = new FrequencyAnalysis();
for (var n = 0; n < 100_000; n++)
{
var value = await dist.NextNumber();
fqa.CountThis(value);
}
var result = fqa.NormalizeAndPlotEvents(TestContext.WriteLine);
Assert.That(result[0], Is.EqualTo(0.0000000164021588).Within(0.0000002));
Assert.That(result[1], Is.EqualTo(0.0000002611256437).Within(0.000003));
Assert.That(result[2], Is.EqualTo(0.0000013153553250).Within(0.00002));
Assert.That(result[21], Is.EqualTo(0.003459320622874).Within(0.005));
Assert.That(result[22], Is.EqualTo(0.004111875573379).Within(0.005));
Assert.That(result[23], Is.EqualTo(0.004850674298859).Within(0.005));
Assert.That(result[50], Is.EqualTo(0.086418773275056).Within(0.05));
Assert.That(result[75], Is.EqualTo(0.376092741436046).Within(0.08));
Assert.That(result[85], Is.EqualTo(0.586569751611096).Within(0.08));
Assert.That(result[90], Is.EqualTo(0.717189736168766).Within(0.08));
Assert.That(result[97], Is.EqualTo(0.931477764640217).Within(0.08));
Assert.That(result[98], Is.EqualTo(0.965244855212136).Within(0.08));
Assert.That(result[99], Is.EqualTo(0.999827884370044).Within(0.08));
}
public async Task TestChiSquareGeneratorWithRange01()
{
using var rng = new MultiThreadedRng();
var dist = new FastRng.Double.Distributions.ChiSquareK10(rng);
var samples = new double[1_000];
