Calculate ages in R

Question

I have two data frames in R. One frame has a persons year of birth:

YEAR
/1931
/1924

and then another column shows a more recent time.

Answer 1

I think this might be a bit more intuitive and requires no formatting or stripping:

as.numeric(as.Date("2002-02-02") - as.Date("1924-08-03")) / 365

gives output:

77.55342

Then you can use floor(), round(), or ceiling() to round to a whole number.