How do I change a ymd date to a dmy date with lubridate?-CodePudding

So, let's say I have data with a column date.

library(dplyr)
library(lubridate)

df <- data.frame(
  nr = c(1, 2),
  date = c(20170131, 20081028)
)

df2 <- df %>% 
  mutate(date = ymd(date))

Now my data has the dates in proper date format year-month-date. But what if I want to change that to d-m-y format in one statement? The only solution I have is with the format function. But is there a lubridate solution as well?

df3 <- df2 %>% 
  mutate(date = format(date, "%d/%m/%Y"))

CodePudding user response：

Lubridate has the dedicated stamp function.

Example use from the documentation:

D <- ymd("2010-04-05") - days(1:5)
stamp("March 1, 1999")(D)
#> Multiple formats matched: "%Om %d, %Y"(1), "March %Om, %Y"(1), "%B %d, %Y"(1), "March %m, %Y"(1)
#> Using: "%B %d, %Y"
#> [1] "April 04, 2010" "April 03, 2010" "April 02, 2010" "April 01, 2010"
#> [5] "March 31, 2010"

CodePudding user response：

Lubridate also has the dmy() function you could use.