On Thu, 26 Jun 2025, Dirk Eddelbuettel writes:
> On 25 June 2025 at 07:11, Kurt Hornik wrote:
> | >>>>> hormutz screed writes:
> |
> | Thanks. Makes sense to me, needs some discussion in R Core ...
>
> Nice to see this in NEWS [1]:
>
> CHANGES IN R-devel BUG FIXES
>
> ‘<Date> %in% set’ has become as fast again, as it was before R 4.3.0, via
> new S3 method ‘mtfrm.Date’.
>
> Dirk
>
> [1] https://developer.r-project.org/blosxom.cgi/R-devel via the RSS feed
As a remark -- not a complaint ;-) --, in R 4.5.1:
match("2025-01-01", as.Date("2025-01-01"))
## [1] 1
which is, in a way, consistent with
"2025-01-01" == as.Date("2025-01-01")
## [1] TRUE
In R-devel (2025-06-26 r88362):
match("2025-01-01", as.Date("2025-01-01"))
## [1] NA
"2025-01-01" == as.Date("2025-01-01")
## [1] TRUE
--
Enrico Schumann
Lucerne, Switzerland
https://enricoschumann.net
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