Given the available information which packages were on CRAN on a given date?
Value
The data.frame with the packages and versions at a given date.
NA if not able to collect the data from CRAN.
Note
Due to missing of CRAN comments some packages are not annotated when were they archived and more packages than present might be returned for any given date.
See also
Other utilities:
cran_date(),
cran_doom(),
duplicated_alias(),
package_date(),
package_repos(),
repos_dependencies(),
update_dependencies()
Examples
# \donttest{
cs <- cran_snapshot(Sys.Date() -2 )
#> Warning: There are 4 packages both archived and published
#> This indicate manual CRAN intervention.
head(cs)
#> Package Datetime Version User Size Status
#> 1 A3 2015-08-16 21:05:54 1.0.0 hornik 42810 archived
#> 2 AATtools 2024-08-16 09:10:08 0.0.3 ligges 252641 current
#> 3 ABACUS 2019-09-20 07:40:07 1.0.0 ligges 84194 current
#> 4 ABC.RAP 2016-10-20 08:52:18 0.9.0 hornik 4769661 current
#> 5 ABCDscores 2025-09-11 09:01:03 6.0.1 ligges 354017 current
#> 6 ABCExtremes 2013-05-15 08:45:56 1.0 hornik 5784 archived
# }