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usa 1.0.0

Breaking changes

• states split into two tibbles: state_ids (naming and coding systems) and state_geo (geographic and classificatory properties).

• facts renamed to state_facts; state.x19 removed.

• Puerto Rico removed from all state_* objects. It is now included in territory and the territory_* vectors alongside AS, GU, MP, UM, and VI. All state_* objects now cover exactly 51 rows (50 states + DC).

• state.abb, state.area, state.center, state.division, state.name, and state.region dot-named vectors replaced with state_abbs, state_areas, state_centers, state_divisions, state_names, and state_regions.

• zip.code, zip.center, city.name, and county.name renamed to zip_codes, zip_centers, city_names, and county_names.

New data

• state_capitals: capital city name, coordinates (TIGER 2020 internal points), and population (2020 Decennial Census) for the 50 states and DC.

• state_geo gains peak_elev (state high point in feet, USGS) and adds DC.

Updated data

• state_facts population updated to 2020 Decennial Census (was 2010 ACS).

• state_facts income updated to 2022 ACS 1-year per capita income (was 2019 median household income).

• state_facts Electoral College votes updated to 2020 Census reapportionment (applies 2022–2032).

• state_facts murder rate updated to 2022 FBI NIBRS homicide rate per 100,000 via the Crime Data Explorer API (was 2018 UCR).

• state_facts education updated to 2022 ACS 1-year; college now stored as a proportion (0–1) rather than a percentage.

• state_facts heat (1981–2010 cooling degree days, dead FTP source) replaced by frost: mean days per year with minimum temperature below freezing, from the NCEI 1991–2020 Climate Normals.

• state_facts life expectancy updated to 2021 NCHS state life tables via CDC (was 2017–18 data from a Wikipedia scrape).

• counties source updated from archived FCC file to Census TIGER 2020 national county reference file. Row count 3,232 → 3,235.

• state_ids gains icp (IPUMS STATEICP codes) and ap (AP style abbreviations) columns.

Other changes

• sp and rgdal dependencies removed; spatial operations use sf and tigris throughout.

• state_capitals coordinates and population now sourced from the Census API rather than hardcoded.

usa 0.1.3

• Fix logo URL in README

usa 0.1.2

• Update maintainer email, website URL, and GitHub URL.

usa 0.1.1

• Add state_convert() helper function.
• Add Electoral College votes to facts.
• Remove the invalid negative degree days in the mean.
• Rename the bach column to college and remove the high column.

usa 0.1.0

• Rename info data to facts.
• Separate territories from states to territory, etc (for now).

usa 0.0.9

• Finish the info data set:
  • Find degree days for Washington, DC.
  • Use state names instead of abbreviations.
  • Remove outdated literacy rates.
  • Add admission date (age in matrix).
  • Use https://data.census.gov sources.
  • Save .zip and .xlsx data sources.

usa 0.0.8

• Add the data from the archived zipcode package.
• Export the columns from the zipcodes data frame as zip.* vectors.

usa 0.0.7

• Add the synthetic people data set from PEW Research.

usa 0.0.6

• Replace geocodes data with census sources.
• Combine state info into single table.
• Delete unfinished data.

usa 0.0.4

• Save state_centers tibble from Wikipedia.
• Overwrite state.center list with territories.
• Update README.md with newest object differences.

usa 0.0.3

• Improve draft objects and tibbles.
• Add overall states tibble.

usa 0.0.2

• Overwrite the base state.* objects.
• Add draft versions of most relational tibbles:

usa 0.0.1

• Rename package to usa
• Create fips, regions, divisions, and populations tibbles.

state2 0.0.0.9000

• Added a NEWS.md file to track changes to the package.

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.