checkPkgs: Check for presence of a package
In ufs: A Collection of Utilities

checkPkgs

R Documentation

Check for presence of a package

Description

This function efficiently checks for the presence of a package without loading it (unlike library() or require(). This is useful to force yourself to use the package::function syntax for addressing functions; you can make sure required packages are installed, but their namespace won't attach to the search path.

Usage

checkPkgs(
  ...,
  install = FALSE,
  load = FALSE,
  repos = "https://cran.rstudio.com"
)

Arguments

`...`	A series of packages. If the packages are named, the names are the package names, and the values are the minimum required package versions (see the second example).
`install`	Whether to install missing packages from `repos`.
`load`	Whether to load packages (which is exactly not the point of this package, but hey, YMMV).
`repos`	The repository to use if installing packages; default is the RStudio repository.

Value

Invisibly, a vector of the available packages.

Examples


ufs::checkPkgs('base');

### Require a specific version
ufs::checkPkgs(ufs = "0.3.1");

### This will show the error message
tryCatch(
  ufs::checkPkgs(
    base = "99",
    stats = "42.5",
    ufs = 20
  ),
  error = print
);

ufs documentation built on Aug. 8, 2025, 7:38 p.m.