gnomer_palette: Access the colors in a gnomeR color palette

In margarethannum/gnomeR: What the Package Does (One Line, Title Case)

Description

gnomeR colors can be accessed and used in plotting

Usage

gnomer_palette(name = "pancan", n, type = c("discrete", "continuous"))

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. @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")

# 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"))

margarethannum/gnomeR documentation built on Feb. 26, 2020, 8:16 p.m.