Install from CRAN using:
install.packages("PrettyCols")
Or install the development version using:
::install_github("nrennie/PrettyCols") remotes
Then load into R:
library(PrettyCols)
Set up a simple data frame to use for an example plot:
library(ggplot2)
<- data.frame(type = c("A", "B", "C"),
df value = c(1, 2, 3))
To change the fill or colour for discrete variables:
ggplot(data = df,
mapping = aes(x = type, y = value, fill = type)) +
geom_col() +
scale_fill_pretty_d(name = "Blues")
ggplot(data = df,
mapping = aes(x = type, y = value, colour = type)) +
geom_col(size = 2, fill = "white") +
scale_colour_pretty_d(name = "Blues")
#> Warning: Using `size` aesthetic for lines was deprecated in ggplot2 3.4.0.
#> ℹ Please use `linewidth` instead.
To change the fill or colour for continuous variables:
ggplot(data = df,
mapping = aes(x = type, y = value, fill = value)) +
geom_col() +
scale_fill_pretty_c(name = "Purples")
ggplot(data = df,
mapping = aes(x = type, y = value, colour = value)) +
geom_col(size = 2, fill = "white") +
scale_colour_pretty_c(name = "Purples", direction = -1)
To change the legend title:
ggplot(data = df,
mapping = aes(x = type, y = value, fill = value)) +
geom_col() +
scale_fill_pretty_c(name = "Purples", legend_title = "My New Title") +
theme(legend.title = element_text(colour = "blue"))