I've felt that "as.Date" should default to origin "1970-01-01", so I
added a modification to Ecfun:
Ecfun::as.Date1970(0)
If R-devel chose to change the default on this, I would happily
deprecate Ecfun::as.Date1970 in favor of base::as.Date ;-)
I would therefore support changing the documentation to match the new
behavior.
Spencer Graves
On 11/2/22 7:30 AM, Dan Dalthorp via R-devel wrote:
The new (2022-10-11 r83083 ucrt) as.Date function returns a date rather than an error
when called without "origin" specified.
# previous versions of R
as.Date(0)
# Error in as.Date.numeric(0) : 'origin' must be supplied
# new:
as.Date(0)
# [1] "1970-01-01"
This is at odds with the help file, which gives:
origin
aDateobject, or something which can be coerced byas.Date(origin, ...)to such an
object.
And:
as.Datewill accept numeric data (the number of days since an epoch),
butonlyiforiginis supplied.
The behavior described in the help file and implemented in previous versions seems more
reasonable than returning a date with an arbitrary "origin". In any case, in
the r-devel there is a mismatch between the function and its description.
-Dan
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