Sets and resets the .Random.seed in the global environment.
randomSeed(action=c("set", "advance", "reset", "get"), seed=NULL, kind=NULL, backup=TRUE)Returns a .Random.seed.
A character string specifying the action.
Random seed to be set; only for action="set".
If length(seed) == 1, then set.seed(seed) is
used, otherwise .Random.seed is assigned the value.
(optional) A character string specifying type of
random number generator to use, cf. RNGkind().
If TRUE, the previous (seed, kind) state is recorded
such that it can be reset later.
Henrik Bengtsson