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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