static void SamplesUnchecked(System.Random rnd, double[] values, double d1, double d2)
{
var values2 = new double[values.Length];
ChiSquared.SamplesUnchecked(rnd, values, d1);
ChiSquared.SamplesUnchecked(rnd, values2, d2);
CommonParallel.For(0, values.Length, 4096, (a, b) =>
{
for (int i = a; i < b; i++)
{
values[i] = (values[i] * d2) / (values2[i] * d1);
}
});
}
/// <summary>
/// Generates one sample from the <c>FisherSnedecor</c> distribution without parameter checking.
/// </summary>
/// <param name="rnd">The random number generator to use.</param>
/// <param name="d1">The first degree of freedom (d1) of the distribution. Range: d1 > 0.</param>
/// <param name="d2">The second degree of freedom (d2) of the distribution. Range: d2 > 0.</param>
/// <returns>a <c>FisherSnedecor</c> distributed random number.</returns>
static double SampleUnchecked(System.Random rnd, double d1, double d2)
{
return((ChiSquared.Sample(rnd, d1) * d2) / (ChiSquared.Sample(rnd, d2) * d1));
}