args {base}R Documentation

Argument List of a Function

Description

Displays the argument names and corresponding default values of a function or primitive.

Usage

args(name)

Arguments

name

a function (a closure or a primitive). If name is a character string then the function with that name is found and used.

Details

This function is mainly used interactively to print the argument list of a function. For programming, consider using formals instead.

Value

For a closure, a closure with identical formal argument list but an empty (NULL) body.

For a primitive, a closure with the documented usage and NULL body. Note that some primitives do not make use of named arguments and match by position rather than name.

NULL in case of a non-function.

References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

See Also

formals, help.

Examples

args(c)
args(graphics::plot.default)
[Package base version 2.15.1 Index]