city_code               Get city codes
city_convert            Convert to cities at different points in time
city_data               Get city data
city_desig_merge        Merge designated city wards
city_desig_split        Split designated cities into wards
city_interval           Get city duration
city_name               Get city names
city_to_pref            Convert city to prefecture
find_city               Find cities by string patterns
get_city                Get cities at a specific point in time
is_city                 Test if the object is a jpcity_city object
is_city_desig           Check if a city is a designated city or a ward
                        of a designated city
is_pref                 Test if the object is a jpcity_pref object
parse_city              Parse city codes
parse_pref              Parse prefecture codes or names
pref_code               Get prefecture codes
pref_data               Get pref data
pref_name               Get prefecture names
