versions: Query and Install Specific Versions of Packages on CRAN

> library(versions)

バージョン: 0.2

関数名 概略
available.versions available.versions
install.dates install.dates
install.versions install.versions
installed.versions installed.versions
versions-package versions: Query and Install Specific Versions of Packages on CRAN

available.versions

> available.versions("checkpoint")

$checkpoint
  version date available
1  0.3.16 <NA>        NA
2  0.3.10 <NA>        NA
3  0.3.15 <NA>        NA
4   0.3.2 <NA>        NA
5   0.3.3 <NA>        NA
6   0.3.9 <NA>        NA

install.dates

Arguments

  • pkgs
  • dates
  • lib
  • ...
> install.dates("devtools", dates = Sys.Date() - 1)

installed.versions

> installed.versions("versions")

[1] "0.2"