native_areas {tigris}

Download an American Indian / Alaska Native / Native Hawaiian Areas shapefile into R.

Description

Description from the Census Bureau: "This shapefile contain both legal and statistical American Indian, Alaska Native, and Native Hawaiian entities for which the Census Bureau publishes data. The legal entities consist of federally recognized American Indian reservations and off-reservation trust land areas, state-recognized American Indian reservations, and Hawaiian home lands (HHLs)." For more information, please see the link provided.

Usage

native_areas(cb = FALSE, year = NULL, ...)

Arguments

cb

If cb is set to TRUE, download a generalized (1:500k) file. Defaults to FALSE (the most detailed TIGER/Line file)

year

the data year; defaults to 2022

...

arguments to be passed to internal function load_tiger, which is not exported. See Additional Arguments.

Additional Arguments

Additional arguments that can be passed in ... are:

• class Desired class of return object: "sf" (the default) or "sp". sp classes should be considered deprecated as of tigris version 2.0, but legacy support is still available.

• progress_bar If set to FALSE, do not display download progress bar (helpful for R Markdown documents). Defaults to TRUE.

• keep_zipped_shapefile If set to TRUE, do not delete zipped shapefile (stored in temporary directory or TIGRIS_CACHE_DIR depending on the configuration of global option "tigris_use_cache"). Defaults to FALSE.

• refresh Whether to re-download cached shapefiles (TRUE or FALSE) . The default is either FALSE or the value of global option "tigris_refresh" if it is set. Specifying this argument will override the behavior set in "tigris_refresh" global option.

• filter_by Geometry used to filter the output returned by the function. Can be an sf object, an object of class bbox, or a length-4 vector of format c(xmin, ymin, xmax, ymax) that can be converted to a bbox. Geometries that intersect the input to filter_by will be returned.

See Also

https://www2.census.gov/geo/pdfs/reference/GARM/Ch5GARM.pdf

Other native/tribal geometries functions: alaska_native_regional_corporations(), tribal_block_groups(), tribal_census_tracts(), tribal_subdivisions_national()

Examples

## Not run: 
library(tigris)
library(ggplot2)
library(ggthemes)

nat <- native_areas(cb = TRUE)

gg <- ggplot()
gg <- gg + geom_sf(data = nat, color="black", fill="white", size=0.25)
gg <- gg + coord_sf(xlim=c(-179.1506, -129.9795),  # alaska
                     ylim=c(51.2097, 71.4410))
gg <- gg + theme_map()
gg

## End(Not run)