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ggredist provides ggplot2 extensions for political mapmaking, including new geometries, easy label generation and placement, automatic map coloring, and map scales, palettes, and themes.

Here’s an example of what you can do with the package.

library(ggredist)
library(ggplot2)

data(oregon)

ggplot(oregon, aes(group=cd_2020)) +
  # 'ndv' and 'nrv' contain D and R vote counts
  geom_district(aes(fill=ndv, denom=ndv+nrv), linewidth=0.9) +
  geom_district_text() +
  # we can overlay county boundaries and labels
  geom_district(aes(group=county), linewidth=0.4, linetype="dashed", fill=NA) +
  geom_district_text(aes(group=county, label=toupper(county)),
                     size=2.2, check_overlap=TRUE) +
  scale_fill_party_b(limits=c(0.4, 0.6)) +
  theme_map()

See more in the reference.

Installation

You can install the development version of ggredist from GitHub with:

# install.packages("remotes")
remotes::install_github("alarm-redist/ggredist")