sample: Random samples

In cobriant/qelp: Quick Help: Beginner friendly help docs for R and the Tidyverse

Random samples

Description

Draw random samples from a vector of elements.

Details

First argument x: a vector. Can be any data type.

Second argument size: the length of the output vector, that is, the number of random draws you'd like to make.

Third argument replace: by default, replace is set to FALSE, so sampling is done without replacement. If you'd like to sample with replacement, set replace = TRUE. If you've set size to be greater than the length of x, you'll need to set replace to be TRUE.

Fourth argument prob: a vector of weights which you should define if you don't want there to be an equal probability for drawing each element of x.

sample(x, size, replace = FALSE, prob = NULL)

See Also

seq(), rep(), c(), stats::runif(), stats::rnorm()

Examples

# Flip a coin 10 times:

sample(c("heads", "tails"),
       size = 4, replace = TRUE)

#> [1] "tails" "tails" "tails" "heads"

-----------------------------------

sample(1:3, size = 12, replace = TRUE,
       prob = c(.5, .3, .2))

#> [1] 2 3 2 1 1 1 2 1 1 2 3 2

cobriant/qelp documentation built on July 1, 2022, 7:24 a.m.