paletteR
PaletteR is an R package that is able to draw an optimised palette from a custom image. The palette is obtained by applying statistical learning to the image provided and optimising the distribution of colours.
More on the math behind the package can be found at:
example
Tondo Doni, Michelangelo Buonarroti, 1503-1504
Installation
The package is currently only on Github. You can install it as follows:
devtools::install_github("AndreaCirilloAC/paletter")usage
image_path <- "path_to_your_image"
colours_vector <- create_palette(image_path = image_path,
number_of_colors =32,
type_of_variable = โcategorical")
ggplot(data = mtcars, aes(x = rownames(mtcars),y = hp,color = rownames(mtcars),
fill = rownames(mtcars))) +
geom_bar(stat = 'identity') +
scale_color_manual(values = colours_vector) +
scale_fill_manual(values=colours_vector)+
theme_minimal() +
guides(size = FALSE) +
theme(legend.position = "bottom") +
labs(title = "disp vs hp")+
coord_flip()