seed specification used to initialise the set
of streams using RNGseq_seed.
simplify
a logical that specifies if sequences of
length 1 should be unlisted and returned as a single
vector.
...
extra arguments passed to
RNGseq_seed.
normal.kind
Type of Normal random generator. See
RNG.
verbose
logical to toggle verbose messages
version
version of the function to use, to
reproduce old behaviours. Version 1 had a bug which made
the generated stream sequences share most of their seeds
(!), as well as being not equivalent to calling
set.seed(seed); RNGseq_seed(NULL). Version 2 fixes
this bug.
Details
This ensures complete reproducibility of the set of run.
The streams are created using L'Ecuyer's RNG, implemented
in R core since version 2.14.0 under the name
"L'Ecuyer-CMRG" (see RNG).
Generating a sequence without specifying a seed uses a
single draw of the current RNG. The generation of a
sequence using seed (a single or 6-length numeric) a
should not affect the current RNG state.
Value
a list of integer vectors (or a single integer vector if
n=1 and unlist=TRUE).
a 7-length numeric vector.
See Also
RNGseq
Examples
RNGseq(3)
RNGseq(3)
RNGseq(3, seed=123)
# or identically
set.seed(123)
identical(RNGseq(3), RNGseq(3, seed=123))
RNGseq(3, seed=1:6, verbose=TRUE)
# select Normal kind
RNGseq(3, seed=123, normal.kind="Ahrens")
## generate a seed for RNGseq
# random
RNGseq_seed()
RNGseq_seed()
RNGseq_seed(NULL)
# fixed
RNGseq_seed(1)
RNGseq_seed(1:6)
# `RNGseq_seed(1)` is identical to
set.seed(1)
s <- RNGseq_seed()
identical(s, RNGseq_seed(1))