How to format a AAAAMMDD in date AAAA-MM-DD IN R?

Question

I have a column with date in the format 20201020 (AAAAMMDD) as integer and a need to format as date 2020-10-20.

I`ve tried:

as.Date(MYDATE, format = "%m/%d/%y", origin = "1900-01-01")

AND

format(MYDATE, "%m/%d/%Y")

But returned just

NA

Answer 1

Using lubridate we can:

ymd(MY_DATE)