load_tiger {tigris}

Helper function to download Census data

Description

Helper function to download Census data

Usage

load_tiger(
  url,
  refresh = getOption("tigris_refresh", FALSE),
  tigris_type = NULL,
  class = getOption("tigris_class", "sf"),
  progress_bar = TRUE,
  keep_zipped_shapefile = FALSE,
  filter_by = NULL
)

Arguments

url

URL for zipped shapefile in TIGER database (constructed in calling function).

refresh

Whether to re-download shapefiles if cached. Defaults to value of the global option "tigris_refresh" if that option is, and FALSE if not. This will override the behavior set in "tigris_refresh" option if a value (TRUE or FALSE) is provided.

tigris_type

Added as an attribute to return object (used internally).

class

Class of return object. Must be one of "sf" (the default) or "sp".

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.

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.

Value

sf or sp data frame