setVectorSeed | R Documentation |
Initializes Mersenne-Twister random number generator, which is
the default RNG in R, with a numeric vector
of arbitrary nonzero length, whose components are
interpreted as 32-bit integers. In order to guarantee that different input
vectors yield unrelated streams of random numbers, Fortuna random number
generator using AES (Advanced Encryption Standard) encryption
algorithm is used for the transformation of vseed
to the
initial state of Mersenne-Twister. See generateInitialization
for more detail of the algorithm.
setVectorSeed(vseed)
vseed |
Numeric vector of arbitrary nonzero length with
integer values from |
The function calls RNGkind("Mersenne-Twister")
and then replaces
its state with generateInitialization(vseed)
as an initial state.
See generateInitialization
for the description of the algorithm
computing the initialization of length 624 from vseed
.
NULL
invisibly.
generateInitialization
.
setVectorSeed(1)
x1 <- runif(5)
setVectorSeed(c(1, 0))
x2 <- runif(5)
stopifnot(abs(x1 - c(0.30327915, 0.93045726, 0.20716215, 0.04424525, 0.07478261)) < 1e-8)
stopifnot(abs(x2 - c(0.02231465, 0.80036017, 0.27630612, 0.69594674, 0.02688734)) < 1e-8)
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