statemap_labels: State map label longitude and latitude points.
In donboyd5/bdata: Boyd data

Description Usage Format Details Source Examples

Longitude (x) and latitude (y) values for points suitable for putting state abbreviations or names on a map of the 50 states generated by usmap::us_map().

1	statemap_labels

Data frame with 1 row per state per state.

x: Longitude, numeric
y: Latitude, numeric
fips: State FIPS code, character
stabbr: State postal abbreviation, character
stname: State name, character

It is difficult to determine algorithmically precisely where these points should be – centroids or simple midpoints of a state's longitude and latitude are not always best. Good labeling points have been developed in the package usmap. This data frame uses those points.

Having the data points in a separate data frame allows them to be used in ways beyond those built into the package usmap.

Includes 50 states and DC. Alaska and Hawaii are in the lower left corner of the map and the labels are placed there.

usmap package developed by Paolo Di Lorenzo (see https://dilorenzo.pl/pkgs/usmap/). The GitHub package page is https://github.com/pdil/usmap and the specific file location is https://github.com/pdil/usmap/blob/master/inst/extdata/us_states_centroids.csv. At CRAN: https://cran.r-project.org/web/packages/usmap/index.html.

  head(statemap_labels)
  
## Not run: 
  # check how the labeling looks on a U.S. map
  p <- ggplot(data = usmap::us_map(), aes(x = x, y = y)) +
    geom_polygon(aes(group=group), fill="white", color = "gray90", size = 0.1, na.rm=TRUE) +
    coord_equal()
  p
  
  p + geom_text(data = statemap_labels, aes(x, y, label = stabbr), size = 2)
  
  p + geom_text(data = statemap_labels, aes(x, y, label = stname), size = 2)

## End(Not run)