lenses (version 0.0.3)

levels_l: Levels lens

Description

A lens into the levels of an object. Usually this is factor levels. Lens equivalent of levels and levels<-.

Usage

levels_l

Format

An object of class lens of length 2.

Examples

# NOT RUN {
x <- factor(c("a", "b"))
view(x, levels_l)
set(x, levels_l, c("A", "B"))
# }