data_clean/03_지선_제7회_시도지사_20180613.R

In ai-carpentry/krvote: Korean Election Datasets

################################################################# ---
##             엑셀파일 유권자 투개표 : 지방선거/시도지사      ##
##                    개발자: 이광춘                           ##
##                최종수정일: 2022-03-13                       ##
################################################################# ---


# 제7회 지방선거 - 시도지사 -------------
library(tidyverse)
library(readxl)
library(testthat)
library(here)
library(httr)


##---------------------------------------------------------------- --
##                    제7회 지방선거 시도지사 (2018)               --
##---------------------------------------------------------------- --
# 출처: https://www.nec.go.kr/site/nec/ex/bbs/View.do?cbIdx=1129&bcIdx=14979
# 1. 데이터 가져오기 ---------------------------
local_sido_2018_excel <- read_excel("../../docs/krvotes/data-raw/제7회_전국동시지방선거_2018/20180619-7지선-01-(시도지사)_읍면동별개표자료.xlsx", sheet="7지선-시도지사", skip=0,
                             col_types = c(rep("text", 20)))


local_sido_2018_raw <- local_sido_2018_excel %>%
  group_by(선거구명) %>%
  nest() %>%
  ungroup()


# 2. 시도별로 데이터 전처리 -----
## 2.1. 변수명 깔끔하게 하는 함수 -------
clean_colnames <- function(df) {

  # 티블 변수명 정리를 위한 임시 저장소
  local_colnames_tbl <- df %>%
    janitor::clean_names(ascii = FALSE)

  # 티블 변수명 전반부 (확정)
  local_colnames_first <- local_colnames_tbl %>%
    select(선거종류:투표수) %>%
    colnames() %>%
    dput()

  # 티블 변수명 후반부 (첫번째 행에서 가져옮)
  local_colnames_second <- local_colnames_tbl %>%
    slice(1) %>%
    select(후보자별_득표수:기권수) %>%
    unlist %>% as.vector(.) %>%
    dput()

  local_colnames_second[length(local_colnames_second)-1] <- "무효투표수"
  local_colnames_second[length(local_colnames_second)] <- "기권수"

  # 변수명 결합
  local_colnames_v <- c(local_colnames_first, local_colnames_second)

  clean_tbl <- local_colnames_tbl %>%
    set_names(local_colnames_v) %>%
    janitor::clean_names(ascii = FALSE) %>%
    slice(2:n()) %>%
    select(!starts_with("x"))

  return(clean_tbl)
}

## 2.2. 시도별 변수명 작업 수행 -------

clean_variable <- function(raw_data) {
  clean_tbl <- raw_data %>%
    select(-선거종류) %>%
    filter(!is.na(구시군명),
           읍면동명 != "계") %>%
    mutate(구분 = ifelse(is.na(구분), 읍면동명, 구분)) %>%
    mutate_at(vars(선거인수:기권수), as.numeric) %>%
    filter(구분 != "소계")

  return(clean_tbl)
}

local_sido_20180613 <- local_sido_2018_raw %>%
  mutate(data = map(data, clean_colnames) ) %>%
  mutate(data = map(data, clean_variable)) %>%
  rename(시도명 = 선거구명)

# 3. 단위테스트 검증 -------------

test_that("지방선거 2018 후보득표검증", {

  # 서울시장 후보 단위테스트 검정
  local_2018_seoul_check <- local_sido_20180613 %>%
    filter(`시도명` == "서울특별시") %>%
    pull(data) %>% .[[1]] %>%
    summarise(`더불어민주당_박원순` = sum(`더불어민주당_박원순`),
              `자유한국당_김문수`   = sum(`자유한국당_김문수`),
              `바른미래당_안철수`   = sum(`바른미래당_안철수`),
              `정의당_김종민`       = sum(`정의당_김종민`))

  expect_that( local_2018_seoul_check$`더불어민주당_박원순`, equals(2619497))
  expect_that( local_2018_seoul_check$`자유한국당_김문수`,   equals(1158487))
  expect_that( local_2018_seoul_check$`바른미래당_안철수`,   equals(970374))
  expect_that( local_2018_seoul_check$`정의당_김종민`,       equals(81664))


  local_2018_jeju_check <- local_sido_20180613 %>%
    filter(`시도명` == "제주특별자치도") %>%
    pull(data) %>% .[[1]] %>%
    summarise(`더불어민주당_문대림` = sum(`더불어민주당_문대림`),
              `자유한국당_김방훈`   = sum(`자유한국당_김방훈`),
              `바른미래당_장성철`   = sum(`바른미래당_장성철`),
              `녹색당_고은영`       = sum(`녹색당_고은영`),
              `무소속_원희룡`       = sum(`무소속_원희룡`))

  expect_that( local_2018_jeju_check$`더불어민주당_문대림`, equals(137901))
  expect_that( local_2018_jeju_check$`자유한국당_김방훈`,   equals(11241))
  expect_that( local_2018_jeju_check$`바른미래당_장성철`,   equals(5019))
  expect_that( local_2018_jeju_check$`녹색당_고은영`,       equals(12188))
  expect_that( local_2018_jeju_check$`무소속_원희룡`,       equals(178255))
})

# 4. 내보내기 -------------

local_sido_20180613 <- krvote::clean_varnames(local_sido_20180613)

local_sido_20180613 <- local_sido_20180613 %>%
  mutate(data = map(data, krvote::clean_varnames))

usethis::use_data(local_sido_20180613, overwrite = TRUE)


##---------------------------------------------------------------- --
##                    제6회 지방선거 시도지사 (2014)               --
##---------------------------------------------------------------- --
# 출처: https://www.nec.go.kr/site/nec/ex/bbs/View.do?cbIdx=1129&bcIdx=14979
# ???