purrr (version 0.3.4)

rerun: Re-run expressions multiple times.

Description

purrr:::lifecycle("questioning")

This is a convenient way of generating sample data. It works similarly to replicate(..., simplify = FALSE).

Usage

rerun(.n, ...)

Value

A list of length .n. Each element of ... will be re-run once for each .n.

There is one special case: if there's a single unnamed input, the second level list will be dropped. In this case, rerun(n, x) behaves like replicate(n, x, simplify = FALSE).

Arguments

.n

Number of times to run expressions

...

Expressions to re-run.

Lifecycle

rerun() is in the questioning lifecycle stage because we are no longer convinced NSE functions are a good fit for purrr. Also, rerun(n, x) can just as easily be expressed as map(1:n, ~ x) (with the added benefit of being passed the current index as argument to the lambda).

Examples

10 %>% rerun(rnorm(5))
10 %>%
  rerun(x = rnorm(5), y = rnorm(5)) %>%
  map_dbl(~ cor(.x$x, .x$y))