TITLE(Weibull @@ The Weibull Distribution)
USAGE(
dweibull(x, shape, scale=1)
pweibull(q, shape, scale=1)
qweibull(p, shape, scale=1)
rweibull(n, shape, scale=1)
)
ALIAS(dweibull)
ALIAS(pweibull)
ALIAS(qweibull)
ALIAS(rweibull)
DESCRIPTION(
These functions provide information about the Weibull distribution
with parameters LANG(shape) and LANG(scale).  LANG(dweibull) gives the
density, LANG(pweibull) gives the distribution function LANG(qweibull)
gives the quantile function and LANG(rweibull) generates random
deviates.
PARA
The Weibull distribution has density given by
DEQN(
f(x) = (a/b) SUP((x/b)@@a-1) EXP (-SUP((x/b)@@a))
@@
f(x) = (a/b) (x/b)^(a-1) exp(- (x/b)^a)
)
for EQN(x GT 0).
Here EQN(a) is the shape parameter of the distribution
and EQN(b) the scale parameter of the distribution.
)
