R ymd()

1 개요

R ymd()

• "Parse Dates With Year, Month, And Day Components"

library("lubridate")

ymd( c("2009-01-01", "2009-01-02", "2009-01-03") )
## [1] "2009-01-01" "2009-01-02" "2009-01-03"
ymd( c("09-01-01", "09-01-02", "09-01-03") )
## [1] "2009-01-01" "2009-01-02" "2009-01-03"
ymd(090101, 90102, 90103)
## [1] "2009-01-01" "2009-01-02" "2009-01-03"

ymd( c(20090101, "2009-01-02", "2009 01 03", "2009-1-4", "2009-1, 5", "Created on 2009 1 6", "200901 !!! 07") )
## [1] "2009-01-01" "2009-01-02" "2009-01-03" "2009-01-04" "2009-01-05" "2009-01-06" "2009-01-07"

ymd("201002-01", "201002-1", "20102-1")
## [1] "2010-02-01" "2010-02-01" "2010-02-01"

2 같이 보기

• R year()
• R 데이터프레임 날짜를 Date형으로 변환

3 참고

• https://www.rdocumentation.org/packages/lubridate/versions/1.7.4/topics/ymd