Indeed. as_date is from lubridate, but the same holds for as.Date.
The output and it's interpretation should be consistent, otherwise it leads
to confusion when programming. I understand that the difference exists
after asking a question on Stack Overflow:
https://stackoverflow.com/q/50766089/91
In the following example, the date class shows Inf as NA
> as_date(Inf, origin = '1970-01-01')
[1] NA
This is misleading as is.na() reports incorrectly
> is.na(as_date(Inf, origin = '1970-01-01'))
[1] FALSE
The correct approach here would probably to have an Inf (and -Inf)
*displayed* rather th
