public async Task TestChiSquareDistribution01()
{
using var rng = new MultiThreadedRng();
var dist = new FastRng.Float.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(0.0000000164021588f).Within(0.0000002f));
Assert.That(result[1], Is.EqualTo(0.0000002611256437f).Within(0.000003f));
Assert.That(result[2], Is.EqualTo(0.0000013153553250f).Within(0.00002f));
Assert.That(result[21], Is.EqualTo(0.003459320622874f).Within(0.005f));
Assert.That(result[22], Is.EqualTo(0.004111875573379f).Within(0.005f));
Assert.That(result[23], Is.EqualTo(0.004850674298859f).Within(0.005f));
Assert.That(result[50], Is.EqualTo(0.086418773275056f).Within(0.05f));
Assert.That(result[75], Is.EqualTo(0.376092741436046f).Within(0.08f));
Assert.That(result[85], Is.EqualTo(0.586569751611096f).Within(0.08f));
Assert.That(result[90], Is.EqualTo(0.717189736168766f).Within(0.08f));
Assert.That(result[97], Is.EqualTo(0.931477764640217f).Within(0.08f));
Assert.That(result[98], Is.EqualTo(0.965244855212136f).Within(0.08f));
Assert.That(result[99], Is.EqualTo(0.999827884370044f).Within(0.08f));
}
public async Task TestChiSquareGeneratorWithRange01()
{
using var rng = new MultiThreadedRng();
var dist = new FastRng.Float.Distributions.ChiSquareK10(rng);
var samples = new float[1_000];