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R Cookbook
book

R Cookbook

by JD Long, Paul Titer, Jee -Won Lee
May 2022
Beginner to intermediate
667 pages
16h 17m
Korean
Insight
Content preview from R Cookbook
Cookbook
125
4.14 HTML 테이블에서 데이터 읽어오기
#> $Worldwide
__
$format.sas
#> [1] "F"
#>
#>
#> $Director
#> $Director$label
#> [1] "Director"
󺠣󽴔󻨛󻨓󻇃󺋿
sas7bdat
패키지는 큰 용량의 파일을 열 때
haven
보다 훨씬 느리지만, 파일 속성에 대
한 훨씬 정교한 기능을 가지고 있다. 만약
SAS
메타데이터가 중요하다면
sas7bdat::
read.sas7bdat
를 자세히 읽어보도록 하자.
4.14
󽴔󼘛󻱃󻋣󻪟󻗫󽴔󺠿󻱃󼗿󽴔󻱌󻪃󻫳󺋿
󻀇󻳫
웹에 있는
HTML
로 된 테이블에서 데이터를 읽어오고 싶다.
󼩃󺅿󼄔
rvest
패키지의
read_html
html_table
함수를 사용한다. 페이지에 있는 모든 테이
블을 읽으려면 다음과 같이 코드를 작성하면 된다.
library(rvest)
library(tidyverse)
all
_
tables <-
read
_
html("
url
") %>%
html
_
table(fill = TRUE, header = TRUE)
rvest
install.packages('tidyverse')
를 실행했을 때 설치되지만,
tidyverse
패키
지의 핵심 패키지는 아니라는 사실을 알아 두자. 그렇기 때문에 명시적으로
rvest
로드해 줘야 한다.
󺙋󻰧
웹 페이지는 여러 개의 ...
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Publisher Resources

ISBN: 9788966262984