FDistribution Class |
Generates F-distributed random numbers.
Inheritance HierarchySystemObject
Altaxo.Calc.Probability.OldProbabilityDistribution
Altaxo.Calc.Probability.OldFDistribution
Altaxo.Calc.Probability.OldProbabilityDistribution
Altaxo.Calc.Probability.OldFDistribution
Namespace: Altaxo.Calc.Probability.Old
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3572.0 (4.8.3572.0)
SyntaxC#
public class FDistribution : ProbabilityDistribution
The FDistribution type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | FDistribution | Initializes a new instance of the FDistribution class. |
Properties| Name | Description | |
|---|---|---|
 | DenomF | Gets the denominator degrees of freedom. |
| Generator | Returns the random generator used by the distribution to generate the random values. (Inherited from ProbabilityDistribution) |
| NumF | Gets the numerator degrees of freedom. |
Methods| Name | Description | |
|---|---|---|
| CDF(Double) |
Gives the cumulative probability at x.
(Overrides ProbabilityDistributionCDF(Double)) |
 | CDF(Double, Double, Double) | Returns the cumulated distribution function for value x with the distribution parameters numf and denomf. |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object) |
| GetHashCode | Serves as the default hash function. (Inherited from Object) |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object) |
| NextDouble |
Generates a random value distributed according to the distribution.
(Overrides ProbabilityDistributionNextDouble) |
| PDF(Double) |
Gives the probability density at x.
(Overrides ProbabilityDistributionPDF(Double)) |
| PDF(Double, Double, Double) | Returns the probability density function for value x with the distribution parameters p and q. |
| Quantile(Double) |
Gives the pth quantile of the distribution.
(Overrides ProbabilityDistributionQuantile(Double)) |
| Quantile(Double, Double, Double) | Quantile of the F-distribution. |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
Fields| Name | Description | |
|---|---|---|
 | DenomChi2 | Cached chi-square distributions used to generate the numerator and denominator terms. |
| DF | Cached numerator and denominator degrees of freedom. |
| generator | Pointer to generator. (Inherited from ProbabilityDistribution) |
| NF | Cached numerator and denominator degrees of freedom. |
| NumChi2 | Cached chi-square distributions used to generate the numerator and denominator terms. |
Remarks
Return F-distributed (variance ratio distributed) random deviates
with n numerator degrees of freedom and d denominator degrees of freedom
according to the density:
p (x) dx = ... dx
n,d
Both parameters n and d must be positive.
Method: The random numbers are directly generated from ratios of
ChiSquare variates according to:
F = (ChiSquare(n)/n) / (ChiSquare(d)/d)
See Also