Currently, I have this
library(usmap)
library(ggplot2)
plot_usmap(states = "states") +
labs(title = "US States",
subtitle = "This is a blank map of the counties of the United States.") +
theme(panel.background = element_rect(color = "BLACK", fill = "GRAY"))
how would I make certain states like Texas, Utah, and Oklahoma one color, and other states like California, Maine, and Oregon another color.
I think you need to write the plotting yourself in that case, but luckily that isn't too difficult. Here's an example:
# choose your states
my_states <- c('Texas', 'Utah', 'Oklahoma')
# get the data
d <- us_map(regions = "states")
# now plot manually. The `full` here refers to the full name of the state,
# which is a column in `d`. Use `abbr` to use abbreviations.
ggplot(d, aes(x, y, group = group, fill = full %in% my_states)) +
geom_polygon(color = 'black') +
coord_equal() +
# Choose your two colors here:
scale_fill_manual(values = c('white', 'firebrick'), guide = 'none') +
usmap:::theme_map() +
labs(
title = "US States",
subtitle = "This is a blank map of the counties of the United States."
) +
theme(panel.background = element_rect(color = "BLACK", fill = "GRAY"))
