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D3.js color scales

Source: R/discrete-d3.R
scale_d3.Rd

See pal_d3() for details.

Usage

scale_color_d3(
  palette = c("category10", "category20", "category20b", "category20c"),
  alpha = 1,
  ...
)

scale_colour_d3(
  palette = c("category10", "category20", "category20b", "category20c"),
  alpha = 1,
  ...
)

scale_fill_d3(
  palette = c("category10", "category20", "category20b", "category20c"),
  alpha = 1,
  ...
)

Arguments

palette

Palette type. There are four 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 grDevices::rgb() for details.

...

Additional parameters for ggplot2::discrete_scale().

References

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

Author

Nan Xiao | me@nanx.me | https://nanx.me

Examples

library("ggplot2")
data("diamonds")

p1 <- ggplot(
  subset(diamonds, carat >= 2.2),
  aes(x = table, y = price, colour = cut)
) +
  geom_point(alpha = 0.7) +
  geom_smooth(method = "loess", alpha = 0.1, size = 1, span = 1) +
  theme_bw()

p2 <- ggplot(
  subset(diamonds, carat > 2.2 & depth > 55 & depth < 70),
  aes(x = depth, fill = cut)
) +
  geom_histogram(colour = "black", binwidth = 1, position = "dodge") +
  theme_bw()

p1 + scale_color_d3()
#> `geom_smooth()` using formula = 'y ~ x'

p2 + scale_fill_d3()


p1 + scale_color_d3(palette = "category20")
#> `geom_smooth()` using formula = 'y ~ x'

p2 + scale_fill_d3(palette = "category20")


p1 + scale_color_d3(palette = "category20b")
#> `geom_smooth()` using formula = 'y ~ x'

p2 + scale_fill_d3(palette = "category20b")


p1 + scale_color_d3(palette = "category20c")
#> `geom_smooth()` using formula = 'y ~ x'

p2 + scale_fill_d3(palette = "category20c")