WEIBULL
Syntax:
WEIBULL ( x , alpha , beta , cumulative-flag )
Description: Computes the Weibull distribution.
Mathematical Formula:
The equation for the Weibull cumulative distribution function is:
The equation for the Weibull probability density function is:
When alpha = 1, WEIBULL
returns the exponential distribution with:
Arguments:
Name |
Type |
Description |
---|---|---|
x |
number |
The value at which the distribution is to be evaluated. |
alpha |
number |
A parameter of the distribution. |
beta |
number |
A parameter of the distribution. |
cumulative-flag |
logical |
Determines the form of the function. If |
Return Type and Value: number – The Weibull distribution.
However, if
x < 0,
#NUM!
is returned.alpha ≤ 0,
#NUM!
is returned.beta ≤ 0,
#NUM!
is returned.