none: None

Description Usage Format See Also Examples

Description

Indicates an invalid variable. Might be returned by an optional function (see ?make_opt())

Usage

1

Format

An object of class optional of length 1.

See Also

option(), opt_unwrap()

Examples

1
2
3
a <- none
a
## [1] None

optional documentation built on May 1, 2019, 9:14 p.m.