Access the colors in a gnomeR color palette

gnomeR colors can be accessed and used in plotting

Usage

gnomer_palette(
  name = "pancan",
  n,
  type = c("discrete", "continuous"),
  plot_col = FALSE,
  reverse = FALSE,
  ...
)

Arguments

name

Name of desired palette, supplied in quotes. Choices are: "pancan" (default) (best for discrete), "main" (better for discrete), "sunset" (continuous)

n

Number of colors desired. If omitted, uses all colors, or the needed number of colors if less than the total.

type

Either "continuous" or "discrete". Use continuous if you want to automatically interpolate between colours.

plot_col

Boolean value weather to plot the palette labeled with their hex codes. Defalut is FALSE.

reverse

Boolean indicating whether the palette should be reversed. Default is FALSE.

...

Additional parameters to pass too grDevices::colorRampPalette @importFrom graphics rgb rect par image text @importFrom grDevices colorRampPalette

Value

A vector of colours.

Examples

library(ggplot2)

# Print a plot showing the colors in a palette, in order
gnomer_palette("pancan")
#>  [1] "#67000D" "#A50F15" "#EF3B2C" "#FC9272" "#FEE0D2" "#BCBDDC" "#807DBA"
#>  [8] "#54278F" "#3F007D" "#08306B" "#08519C" "#4292C6" "#9ECAE1" "#000000"
#> [15] "#525252" "#969696" "#BDBDBD" "#D9D9D9" "#80CDC1" "#35978F" "#01665E"
#> [22] "#006D2C" "#41AB5D" "#A1D99B" "#FFFFCC" "#FED976" "#FD8D3C" "#8C510A"
#> [29] "#BF812D" "#DFC27D" "#FA9FB5" "#F768A1" "#DD3497"

# use a single brand color from a palette
# here using the fourth color from the "pancan" palette
ggplot(mtcars, aes(hp, mpg)) +
geom_point(size = 4, color = gnomer_palette("pancan")[4])


# use a discrete color scale - uses fixed colors from the requested palette
ggplot(iris, aes(Sepal.Width, Sepal.Length, color = Species)) +
geom_point(size = 4) +
scale_color_manual(values = gnomer_palette("pancan"))


# use a continuous color scale - interpolates between colors
ggplot(iris, aes(Sepal.Width, Sepal.Length, color = Sepal.Length)) +
geom_point(size = 4, alpha = .6) +
scale_color_gradientn(colors = gnomer_palette("sunset", type = "continuous"))


# use a fill color
ggplot(iris, aes(x = Sepal.Length, fill = Species)) +
geom_histogram(bins = 20, position = "dodge") +
scale_fill_manual(values = gnomer_palette("pancan"))