jpndistrict

Overview

In this package, the administrative area data to be provided uses the National Land Numerical Information. Shinya Uryu is editing and processing this data. Therefore, when preparing a secondary work using this data, it is necessary to follow the term of the National Land Numerical Information.

This package provide map data is based on the Digital Map 25000 (Map Image) published by Geospatial Information Authority of Japan (Approval No.603FY2017 information usage https://www.gsi.go.jp).

Installation

Install from CRAN.

install.packages("jpndistrict")

For developers, please use the devtool package to install via the GitHub repository.

install.packages("remotes")
remotes::install_github("uribo/jpndistrict")

Usage

# Load Package
library(jpndistrict)

Administrative area data

jpn_pref(14)
jpn_pref(14, district = FALSE)
jpn_cities(14, admin_name = "海老名市")
jpn_cities(33, admin_name = c("倉敷市", "笠岡市"))

# Return mesh polygons included in administrative areas.
mesh_district(jis_code = "05")
mesh_district(jis_code = 33101)

Administration office data

jpn_admins(jis_code = 33)
jpn_admins(jis_code = c("33101", "33212"))

Reverse geocoding in prefecture and city level

find_pref(longitude = 133.915, latitude = 34.666)
find_city(longitude = 133.915, latitude = 34.666)
# sfg
find_city(geometry = sf::st_point(c(140.112, 36.083)))

City name and code validation

code_validate(jis_code = 33101)
code_reform(jis_code = c(1, "33", "08201"))