[R] rexp and rweibull

[Mai Zhou]

In splus rexp() and rweibull() are related:

> set.seed(153)
> rexp(1)
[1] 0.0493267
> set.seed(153)
> rweibull(1, shape=1)
[1] 0.0493267

(you can also try shape =2, then rweibull = sqrt(rexp) )
However, in rw0.64.1 (on Win NT) they are different 

> .Random.seed <- 1:4
> rexp(1)
[1] 1.412030
> .Random.seed <- 1:4
> rweibull(1, shape=1)
[1] 2.054032 

May be rweibull should be built on rexp.

Mai Z
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