strict_sample: Strict behaviour for functions with special scalar behaviour

In hadley/strict: Make R Just a Little Stricter

Strict behaviour for functions with special scalar behaviour

Description

sample() and diag() behave differently depending on whether their first argument is a scalar or a function. These shims throw an error when given a scalar to force you to pick a safer alternative.

Usage

strict_sample(x, size = length(x), replace = FALSE, prob = NULL)

strict_diag(x = 1, nrow, ncol)

Arguments

x, size, replace, prob, nrow, ncol

Passed on to sample() and diag()

Examples

lax({
  sample(5:3)
  sample(5:4)
  sample(5:5)

  diag(5:3)
  diag(5:4)
  diag(5:5)
})

## Not run: 
  sample(5:5)
  diag(5)

## End(Not run)

hadley/strict documentation built on July 5, 2025, 6:46 a.m.