Map discrete variable to fill patterns

Maps the levels of a discrete variable to specific pattern names. When values is named, names are matched to the variable's levels (so the order of values does not need to match the level order). When unnamed, values are matched positionally to levels.

Usage

scale_pattern_manual(values, ...)

Arguments

values

Named or unnamed character vector of pattern names. Built-in base patterns: "none", "hatch", "crosshatch", "horizontal", "vertical", "dots", "weave". Each base pattern (except "none") also has _dense and _sparse variants (e.g. "hatch_dense", "crosshatch_sparse") that use a pre-set tighter or looser spacing. Custom patterns registered via register_pattern() are also accepted.

...

Passed to ggplot2::discrete_scale().

Examples

library(ggplot2)
ggplot(mpg, aes(class, fill = class, pattern = class)) +
  geom_bar_pattern() +
  scale_pattern_manual(values = c(
    "suv"        = "crosshatch",
    "compact"    = "hatch",
    "midsize"    = "dots",
    "minivan"    = "horizontal",
    "pickup"     = "vertical",
    "subcompact" = "weave",
    "2seater"    = "none"
  ))