weibulldist

Used only in event analysis flowcharts

Description: Returns the Weibull distribution.

Syntax: weibulldist(x, Beta, Eta, Gamma, Cumulative)

• x is the time at which the function is evaluated.
• Beta is the shape parameter of the Weibull distribution.
• Eta is the scale parameter of the Weibull distribution.
• Gamma is the location parameter of the Weibull distribution.
• Cumulative is a logical value that indicates which form of the Weibull function to provide. If the value is TRUE, it returns the cumulative distribution function; if FALSE, it returns the probability density function.

Remarks:

• x, Beta, Eta and Gamma must be numerical.
• x, Beta and Eta must be > 0.
• Cumulative can be either 1 or TRUE for TRUE, or any other value or FALSE for FALSE.

• All parameter values can include:

• Numerical values

• Standard operands (+, -, *, /)

• Predefined mathematical functions (exp, log, sin, etc.)

• Event analysis internal functions

• Event analysis resources

• References to any ReliaSoft Workbooks

Example:

• weibulldist(105, 20, 100, 0, TRUE)

Returns:

• 0.929581