[Solved] How to get date difference if column is NA [closed]

by


In the future, please follow the questions guidelines.

library(lubridate)
start = as.Date(c("14.01.2015", "26.03.2015"),format = "%d.%m.%Y")
end   = as.Date(c("18.01.2015", NA),format = "%d.%m.%Y")

diff = ifelse(!is.na(end),difftime(end,start,units="days"),difftime(Sys.time(),start,units="days"))
df = data.frame(start,end,diff)

View(df)


    start   end diff
1   2015-01-14  2015-01-18  4.0000
2   2015-03-26  NA  174.7846

solved How to get date difference if column is NA [closed]