Color palettes based on the colors used by D3.js.

pal_d3(palette = c("category10", "category20", "category20b", "category20c"),
  alpha = 1)

Arguments

palette

Palette type. There are 4 available options: "category10" (10-color palette); "category20" (20-color palette); "category20b" (20-color palette); "category20c" (20-color palette).

alpha

Transparency level, a real number in (0, 1]. See alpha in rgb for details.

References

https://github.com/d3/d3-3.x-api-reference/blob/master/Ordinal-Scales.md

Examples

library("scales") show_col(pal_d3("category10")(10))
show_col(pal_d3("category20")(20))
show_col(pal_d3("category20b")(20))
show_col(pal_d3("category20c")(20))