Package 'jpndistrict'

Reform input jis code as 2 or 5 character length.

Description

Reform input jis code as 2 or 5 character length.

Usage

code_reform(jis_code)

Arguments

jis_code

jis code for prefecture and city identifical number. If prefecture, must be from 1 to 47. If city, range of 5 digits.

Note

The code_reform function was added in version 0.3.2.9000

Examples

code_reform(c(1, "33", "08201"))

---

Administration code validation

Description

Administration code validation

Usage

code_validate(jis_code)

Arguments

jis_code

jis code for prefecture and city identifical number. If prefecture, must be from 1 to 47. If city, range of 5 digits.

Note

The code_validate function was added in version 0.3.2.9000

Examples

code_validate(jis_code = "05")
code_validate(jis_code = 33101)
code_validate(jis_code = c("01", "33101"))

---

Collect administration area

Description

Collect administration area

Usage

collect_cityarea(path = NULL)

Arguments

path	path to N03 shapefile (if already exist)

---

Collect administration office point datasets.

Description

Collect administration office point datasets.

Usage

collect_ksj_p34(path = NULL)

Arguments

path	path to P34 shapefile (if already exist)

---

Get prefecture code (JIS X 0402)

Description

Get prefecture code from prefecture of name or number.

Usage

collect_prefcode(code = NULL, admin_name = NULL)

Arguments

code	numeric
admin_name	prefecture code for Japanese (character)

---

District Viewer

Description

Interactive district map and information tool.

Usage

district_viewer(color = "red")

Arguments

color

polygon line color for leaflet

Examples

## Not run: 
district_viewer()

## End(Not run)

---

Detect city by coordinates

Description

Detect city by coordinates

Usage

find_city(longitude, latitude, geometry = NULL, ...)

Arguments

longitude	longitude
latitude	latitude
geometry	XY sfg object
...	export parameter to other functions

Note

The find_city function was added in version 0.3.0

Examples

find_city(longitude = 140.1137418, latitude = 36.0533957)

# Referenced by sf geometry
library(sf)
find_city(geometry = st_point(c(136.6833, 35.05)))

---

Find JIS city code

Description

Find JIS city code

Usage

find_jis_code(pref_code, admin_name, strict = TRUE)

Arguments

pref_code	jis code from 1 to 47
admin_name	prefecture names (string)
strict	matching patterns

Value

Identification code for cities, towns and villages (JIS X 0402:2010)

Examples

find_jis_code(33, intToUtf8(c(20489, 25975, 24066), multiple = FALSE))
find_jis_code(33, enc2native(intToUtf8(c(20489, 25975, 24066),
                                       multiple = FALSE)),
                                       strict = FALSE)
find_jis_code(14,
c(enc2native(intToUtf8(c(37772, 20489, 24066), multiple = FALSE)),
  enc2native(intToUtf8(c(23567, 30000, 21407, 24066), multiple = FALSE))), strict = FALSE) # nolint

---

Detect prefecture by coordinates

Description

Detect prefecture by coordinates

Usage

find_pref(longitude, latitude, geometry = NULL, ...)

Arguments

longitude	longitude
latitude	latitude
geometry	XY sfg object
...	export parameter to other functions

Note

The find_pref function was added in version 0.3.0

Examples

## Not run: 
find_pref(longitude = 130.4412895, latitude = 30.2984335)

# Referenced by sf geometry
library(sf)
find_pref(geometry = st_point(c(130.4412895, 30.2984335)))

## End(Not run)

---

Detect prefectures by coordinates

Description

Detect prefectures by coordinates

Usage

find_prefs(longitude, latitude, geometry = NULL)

Arguments

longitude	longitude
latitude	latitude
geometry	XY sfg object

Examples

find_prefs(longitude = 122.940625, latitude = 24.4520833334)
find_prefs(longitude = 140.1137418, latitude = 36.0533957)

# Referenced by sf geometry
library(sf)
find_pref(geometry = st_point(c(136.6833, 35.05)))

---

Simple features for administration office points

Description

Name and geolocations for administration offices in prefecture.

Usage

jpn_admins(jis_code)

Arguments

jis_code

jis code for prefecture and city identifical number. If prefecture, must be from 1 to 47. If city, range of 5 digits.

Value

data.frame. contains follow columns jis_code, type, name, address, longitude and latitude.

Examples

## Not run: 
jpn_admins(jis_code = 17)

## End(Not run)

---

Simple features for city area polygons

Description

City area polygon data. When an administrative name (jis_code_city) or code (jis_code_city) is specified as an argument, the target city data is extracted. If neither is given, it becomes the data of the target prefecture.

Usage

jpn_cities(jis_code, admin_name)

Arguments

jis_code	jis code for prefecture and city identifical number. If prefecture, must be from 1 to 47. If city, range of 5 digits.
admin_name	administration name

Examples

jpn_cities(jis_code = "08",
  admin_name = intToUtf8(c(12388, 12367, 12400, 24066)))

jpn_cities(jis_code = 33103)
jpn_cities(jis_code = "33103")
jpn_cities(jis_code = c(33103, 33104, 33205))
jpn_cities(jis_code = c(33103, 34107))

---

Simple features for prefecture area polygon

Description

Prefecture polygon data.

Usage

jpn_pref(
  pref_code,
  admin_name,
  district = TRUE,
  download = FALSE,
  drop_sinkyokyoku = TRUE
)

Arguments

pref_code	jis code from 1 to 47
admin_name	prefecture names (string)
district	logical (default TRUE)
download	logical (default FALSE). IF TRUE, return raw data.
drop_sinkyokyoku	if TRUE, drop sichyo_sinkyokyoku variable (default TRUE)

Details

Collect unit of prefecture simple feature data.frame objects.. If download argument is TRUE, download administrative area data from the National Land Numeral Information Download Service (for law data).

Examples

## Not run: 
jpn_pref(pref_code = 33, district = FALSE)
jpn_pref(pref_code = 14, district = TRUE)

## End(Not run)

---

Prefectural informations in Japan

Description

Prefectures dataset.

Usage

jpnprefs

Format

A data frame with 47 rows 11 variables:

• jis_code: jis code

• prefecture: prefecture names

• capital: capital name for prefecture

• region: region

• major_island:

• prefecture_en:

• capital_en:

• region_en:

• major_island_en:

• capital_latitude: latitude for catital

• capital_longitude: longitude for catital

---

Export district's mesh polygon

Description

Export district's mesh polygon

Usage

mesh_district(jis_code = NULL, to_mesh_size = NULL)

Arguments

jis_code	jis code for prefecture and city identifical number. If prefecture, must be from 1 to 47. If city, range of 5 digits.
to_mesh_size	target mesh type. From 80km to 1km as numeric.

Examples

mesh_district(jis_code = "33101", to_mesh_size = 80)
mesh_district(jis_code = "05", to_mesh_size = 80)

---

Download KSJ N03 zip files

Description

Download KSJ N03 zip files

Usage

path_ksj_cityarea(code = NULL, path = NULL)

Arguments

code	prefecture code (JIS X 0402)
path	path to N03 shapefile (if already exist)

---

Prefecture's meshcode

Description

Prefectures dataset.

Usage

prefecture_mesh

Format

A simple feature data frame with 314 rows 5 variables:

• prefcode: prefecture code

• meshcode

• name

• type

• geometry

---

Intermediate function

Description

Intermediate function

Usage

raw_bind_cityareas(pref)

Arguments

pref	sf object (prefecture)

---

Intermediate function

Description

Download N03 raw data files or loading if file exists.

Usage

read_ksj_cityarea(code = NULL, path = NULL)

Arguments

code	prefecture code (JIS X 0402)
path	path to N03 shapefile (if already exist)

---

Intermediate function

Description

Intermediate function

Usage

read_ksj_p34(pref_code = NULL, path = NULL)

Arguments

pref_code	prefecture code (JIS X 0402)
path	path to P34 shapefile (if already exist)

---

Internal function

Description

Internal function

Usage

which_pol_min(longitude, latitude, ...)

Arguments

longitude	longitude
latitude	latitude
...	export parameter to other functions

---