sample()

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sample()

sample()

sample(x, size) randomly draws size elements from a vector x, without replacement by default -- pass replace = TRUE to allow repeats. It's used for random sampling, shuffling, and simulation. Combined with set.seed(), sampling results become reproducible.

Note: sample(x) with no size argument, and size equal to length(x), effectively shuffles the whole vector.

Example: sample()

markup

set.seed(42)
values <- 1:10

drawn <- sample(values, 3)
print(drawn)

shuffled <- sample(values)
print(shuffled)

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mean, median, sd
min, max, range
summary()
cor()
sample()
set.seed()
Probability Distributions

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sample()

sample()

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