fdavidcl/arguments

R package for defining functions which provide descriptions, automatic argument checking, and more

arguments

R package for defining functions which provide descriptions, automatic argument checking, and more

Usage

Instead of:

my_function <- function(x, y) {
  stopifnot(is(x, "numeric"))
  stopifnot(x != 0)
  stopifnot(y %in% c(TRUE, FALSE))
  
  ## Do stuff with x and y
}

do this:

my_function <- def(x = "numeric" %&% (~ . != 0), y = list(TRUE, FALSE), {
  ## Do stuff with x and y
})

As a bonus, you get this:

man(my_function)

x ->
  Is a: numeric
  Verifies: . != 0

y ->
  Is in: TRUE, FALSE

arguments's Issues

Allow NULL to be a default value

Accumulate arg errors

like in ArgumentCheck