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Provides the FAO Soil Reference Groups colour scheme.

Usage

scale_colour_soil(..., lang = "en", aesthetics = "colour")

scale_color_soil(..., lang = "en", aesthetics = "colour")

scale_fill_soil(..., lang = "en", aesthetics = "fill")

scale_edge_colour_soil(..., lang = "en")

scale_edge_color_soil(..., lang = "en")

scale_edge_fill_soil(..., lang = "en")

Arguments

...

Arguments passed on to ggplot2::discrete_scale().

lang

A character string specifying the language for the color names (see details). It must be one of "en" (english, the default), "fr" (french) or NULL. If not NULL, the values will be matched based on the color names.

aesthetics

A character string or vector of character strings listing the name(s) of the aesthetic(s) that this scale works with.

Value

A discrete scale.

Details

Values will be matched based on the soil names.

References

Jones, A., Montanarella, L. & Jones, R. (Ed.) (2005). Soil atlas of Europe. Luxembourg: European Commission, Office for Official Publications of the European Communities. 128 pp. ISBN: 92-894-8120-X.

See also

Author

N. Frerebeau

Examples

library(ggplot2)

soil <- data.frame(
  name = c(
    "Acrisol", "Albeluvisol", "Andosol", "Anthrosol", "Arenosol", "Calcisol",
    "Cambisol", "Chernozem", "Cryosol", "Fluvisol", "Kastanozem", "Gleysol",
    "Gypsisol", "Histosol", "Leptosol", "Luvisol", "Phaeozem", "Planosol",
    "Podzol", "Regosol", "Solonchak", "Solonetz", "Umbrisol", "Vertisol"
  )
)

ggplot2::ggplot(soil, ggplot2::aes(fill = name)) +
  ggplot2::geom_rect(aes(xmin = rep(0, 24), xmax = rep(1, 24),
                         ymin = 1:24, ymax = 1:24+1)) +
  ggplot2::scale_y_reverse() +
  scale_fill_soil(name = "Soil")