[R] Unexpected date format coercion

Jim Lemon
Thu, 01 Jul 2021 08:22:38 -0000

Hi Jeremie,
Try:

as.Date("20-12-2020","%y-%m-%d")
[1] "2020-12-20"

Jim

On Thu, Jul 1, 2021 at 6:16 PM Jeremie Juste <jeremiejuste at gmail.com>
wrote:
>
> Hello,
>
> I have been surprised when converting a character string to a date with the
following
> format,
>
> in R 4.1.0 (linux debian 10)
>
> as.Date("20-12-2020","%Y-%m-%d")
> [1] "20-12-20"
>
> in R 4.0.5 (window 10)
>
> as.Date("20-12-2020","%Y-%m-%d")
> [1] "0020-12-20"
>
>
> Here I was expecting a blunt and sharp NA, am I missing something?
>
> Best regards,
> Jeremie
>
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