The WEIBULL function calculates the Weibull distribution. This is often used in reliability analysis.
The arguments of the function represent the following:
x |
the value at which to evaluate the function |
alpha |
a parameter to the distribution |
beta |
a parameter to the distribution |
cumulative |
a logical value, which determines the form of the function: TRUE calculates the Weibull cumulative distribution function, which uses the formula: F(x; a, b) = 1 - EXP(-(x/b)^a) FALSE calculates the Weibull probability density function, which uses the formula: f(x; a, b) = ( a / b^a ) x^(a - 1) EXP(-(x/b)^a) |
See also: