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tinytiger

tinytiger is to provide a lightweight interface to the US Census Bureau’s TIGER/Line Shapefiles. It has four dependencies other than sf. Download caching is supported; see below for details.

Installation

Install tinytiger from CRAN with:

install.packages("tinytiger")

You can also install the development version of tinytiger:

remotes::install_github("alarm-redist/tinytiger")

Example

tinytiger provides lightweight functions to download Census Bureau TIGER/Line Shapefiles. To download a geography, simply use the function corresponding to one of the supported geographies.

library(tinytiger)

tt_counties("NY")
#> Simple feature collection with 62 features and 17 fields
#> Geometry type: MULTIPOLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -79.76259 ymin: 40.47658 xmax: -71.77749 ymax: 45.01586
#> Geodetic CRS:  NAD83
#> # A tibble: 62 × 18
#>    STATEFP COUNTYFP COUNT…¹ GEOID NAME  NAMEL…² LSAD  CLASSFP MTFCC CSAFP CBSAFP
#>  * <chr>   <chr>    <chr>   <chr> <chr> <chr>   <chr> <chr>   <chr> <chr> <chr> 
#>  1 36      101      009741… 36101 Steu… Steube… 06    H1      G4020 236   18500 
#>  2 36      091      009741… 36091 Sara… Sarato… 06    H1      G4020 104   10580 
#>  3 36      003      009741… 36003 Alle… Allega… 06    H1      G4020 <NA>  <NA>  
#>  4 36      075      009741… 36075 Oswe… Oswego… 06    H1      G4020 532   45060 
#>  5 36      111      009741… 36111 Ulst… Ulster… 06    H1      G4020 408   28740 
#>  6 36      089      009773… 36089 St. … St. La… 06    H1      G4020 <NA>  36300 
#>  7 36      097      009741… 36097 Schu… Schuyl… 06    H1      G4020 <NA>  <NA>  
#>  8 36      031      009741… 36031 Essex Essex … 06    H1      G4020 <NA>  <NA>  
#>  9 36      103      009741… 36103 Suff… Suffol… 06    H1      G4020 408   35620 
#> 10 36      041      009741… 36041 Hami… Hamilt… 06    H1      G4020 <NA>  <NA>  
#> # … with 52 more rows, 7 more variables: METDIVFP <chr>, FUNCSTAT <chr>,
#> #   ALAND <dbl>, AWATER <dbl>, INTPTLAT <chr>, INTPTLON <chr>,
#> #   geometry <MULTIPOLYGON [°]>, and abbreviated variable names ¹​COUNTYNS,
#> #   ²​NAMELSAD

Supported Geographies

• tt_address_ranges(): Address Ranges
• tt_ai_an_nh_areas(): American Indian / Alaska Native / Native Hawaiian Areas
• tt_tribal_subdivisions(): Tribal Subdivisions
• tt_anrc(): Alaskan Native Regional Corporations
• tt_area_landmarks(): Area Landmarks
• tt_area_water(): Area Water
• tt_block_groups(): Block Groups
• tt_cbsa(): Core Based Statistical Areas
• tt_congressional_districts(): Congressional Districts
• tt_new_england_combined_areas(): Combined New England Towns and Cities
• tt_coastline(): Coastline
• tt_consolidated_cities(): Consolidated Cities
• tt_counties(): Counties
• tt_county_subdivisions(): County Subdivisions
• tt_csa(): Combined Statistical Areas
• tt_polygon_edges(): All Polygon Edges
• tt_elementary_school_districts(): Elementary School Districts (limited states)
• tt_estates(): Estates (Virgin Islands only)
• tt_polygon_faces(): All Polygon Faces
• tt_linear_water(): Linear Water
• tt_metropolitan_divisions(): Metropolitan Divisions
• tt_military(): Military Installations
• tt_new_england_cities(): New England Cities and Towns
• tt_new_england_city_divisions(): New England Cities and Towns Divisions
• tt_places(): Census Places
• tt_point_landmarks(): Point Landmarks
• tt_primary_roads(): Primary Roads
• tt_primary_secondary_roads(): Primary and Secondary Roads
• tt_puma(): Public Use Microdata Areas
• tt_rails(): Railroads
• tt_roads(): Roads
• tt_secondary_school_districts(): Secondary School Districts (limited states)
• tt_state_leg_lower(): Lower State Legislative Districts
• tt_state_leg_upper(): Upper State Legislative Districts
• tt_states(): States
• tt_subbarrios(): Subbarios (Puerto Rico only)
• tt_blocks(): Blocks
• tt_tribal_block_groups(): Tribal Block Groups
• tt_tracts(): Tracts
• tt_tribal_tracts(): Tribal Tracts
• tt_uac(): : Urban Areas
• tt_unified_school_districts(): Unified School Districts
• tt_voting_districts(): Voting Districts
• tt_zcta(): Zip Code Tabulation Areas

Downloading and Caching

By default, downloading will print status messages and/or a progress bar. For silent downloads, set options(tinytiger.curl_quiet = TRUE).

Downloads will go to options(tinytiger.cache_dir) if it is set. If it is not, and rappdirs is installed, and options(tinytiger.use_cache = TRUE), downloads will be cached between sessions in rappdirs::user_cache_dir("tinytiger"). If it is not installed, or if options(tinytiger.use_cache = FALSE), then the cache will be in a temporary directory that does not persist between sessions. You can check the size of the cache and clear it with tt_cache_size() and tt_cache_clear().

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.