Managing seed for random number

set.seed(423)

runif(3)

# [1] 0.1089715 0.5973455 0.9726307


# Save the seed

oldseed <- .Random.seed

runif(3)

# [1] 0.7973768 0.2278427 0.5189830


# Restore the seed

.Random.seed <- oldseed

runif(3)

# [1] 0.7973768 0.2278427 0.5189830

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