Probabilities.FatigueLifePDF Function

Fatigue life probability density function (PDF).

Pascal

function FatigueLifePDF(x: double; Mu: double; gamma: double; beta: double): double; overload;

Parameters	Description
x	Distribution domain, real value on open interval (Mu,INF).
Mu	Defines distribution location parameter.
gamma	Defines distribution shape parameter. gamma must be a positive scalar.
beta	Defines distribution scale parameter. beta must be a positive scalar.

Returns

the Fatigue life probability density function (PDF)evaluated at x using the parameters gamma, Mu and beta. Gamma and beta must be positive real numners and x>Mu, otherwise an exception is raised.

Description

Calculates the "Fatigue life" probability density function, defined by the equation:

The fatigue life distribution is also commonly known as the Birnbaum-Saunders distribution. Please note that there are several alternative formulations of the fatigue life distribution in the literature.