R weekdays()

1 개요

R weekdays()

• "Extract Parts Of A POSIXt Or Date Object → POSIXt 또는 Date 객체의 일부 추출"

day <- as.Date("2019-08-15")
str(day)
 Date[1:1], format: "2019-08-15"
weekdays(day)
## [1] "목요일"

dt <- as.POSIXct("2019-08-15 01:00")
str(dt)
## POSIXct[1:1], format: "2019-08-15 01:00:00"
weekdays(dt)
## [1] "목요일"

2 같이 보기

• R months()
• R quarters()
• R julian()
• R Date
• R DateTimeClasses
• R 데이터프레임 요일 컬럼 추가

3 참고

• https://www.rdocumentation.org/packages/base/versions/3.6.1/topics/weekdays