Description Computes the Weibull distribution.
Syntax WEIBULL (x, alpha, beta, cumulative)
Argument | Description |
---|---|
x | The value at which the function will be evaluated. It must be larger than or equal to 0. |
alpha | The alpha parameter to the distribution. It must be larger than 0. |
beta | The beta parameter to the distribution. It must be larger than 0. |
cumulative | Enter TRUE to calculate the cumulative area from 0 to x and FALSE to calculate the value. |
Equations For the cumulative distribution:
For the probability density function:
If alpha = 1, WEIBULL returns the exponential distribution with
.
Examples This function returns 0.439:
This function returns 0.010:
See Also BINOMDIST, BETADIST, CHIDIST, COMBIN, CRITBINOM, EXPONDIST, FDIST, GAMMADIST, NORMDIST, POISSON