r - Change numeric vector into specific date

Question

I have got a vector like 0 20 365 390 and would like to convert into the date that would occur if that many days has passed so for some origin day (2007-01-01) would be 2007-01-01 2007-01-21 2008-01-01 2008-02-26. How would I quickly do that in R?

question from:https://stackoverflow.com/questions/65617473/change-numeric-vector-into-specific-date

Answer 1

You can do this like so:

dat <- as.Date('2007-01-01') 
dat + c(0,20, 365, 390)
#> [1] "2007-01-01" "2007-01-21" "2008-01-01" "2008-01-26"

You will discover that the last element of the result is different to your expected output.