pac_timemachine | R Documentation |
Using CRAN website to get a package metadata used at a specific Date or a Date interval or for specific version.
pac_timemachine(
pac,
at = NULL,
from = NULL,
to = NULL,
version = NULL,
source = c("cran", "crandb")
)
pac |
|
at |
|
from |
|
to |
|
version |
|
source |
|
data.frame
with 7 columns
character package name.
character package version.
character release Date
character archived Date.
difftime
number of days the version was the newest one.
character the suffix of the base URL to tar.gz
file. The base part of URL in the result is https://cran.r-project.org/src/contrib/
.
character size of the tar.gz
file.
Results are cached for 30 minutes with memoise
package.
The crandb
R packages database is a part of METACRAN
project, source:
Csárdi G, Salmon M (2022). pkgsearch
: Search and Query CRAN R Packages. https://github.com/r-hub/pkgsearch
, https://r-hub.github.io/pkgsearch/
.
For source = "cran"
the function will scrap two CRAN URLS. Works only with CRAN packages.
Please as a courtesy to the R CRAN, don't overload their servers by constantly using this function.
## Not run:
pacs::pac_timemachine("dplyr")
pacs::pac_timemachine("dplyr", at = as.Date("2017-02-02"))
pacs::pac_timemachine("dplyr", from = as.Date("2017-02-02"), to = as.Date("2018-04-02"))
pacs::pac_timemachine("dplyr", at = Sys.Date())
pacs::pac_timemachine("tidyr", from = as.Date("2020-06-01"), to = Sys.Date())
## End(Not run)
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