random_seed: Get, set and restore the state of the random number generator...

In irace: Iterated Racing for Automatic Algorithm Configuration

Get, set and restore the state of the random number generator state.

Description

Get, set and restore the state of the random number generator state.

Usage

get_random_seed()

set_random_seed(seed)

restore_random_seed(seed)

Arguments

seed	(list()|integer(1)) Either an integer or the list returned gy get_random_seed().

Details

These functions originate from the withr package.

Value

get_random_seed() returns a list with two components random_seed and rng_kind or NULL if no seed was set; set_random_seed() and restore_random_seed() do not return anything.

Examples

old_seed <- get_random_seed()
on.exit(restore_random_seed(old_seed))
set_random_seed(42)
value1 <- runif(1)
set_random_seed(42)
value2 <- runif(1)
stopifnot(all.equal(value1,value2))

irace documentation built on April 3, 2025, 10:03 p.m.