Temporarily change library paths.

with_libpaths(new, code, action = "replace")

local_libpaths(new = list(), action = "replace", .local_envir = parent.frame())

Arguments

new

[character]
New library paths

code

[any]
Code to execute in the temporary environment

action

[character(1)]
should new values "replace", "prefix" or "suffix" existing paths.

.local_envir

[environment]
The environment to use for scoping.

Value

[any]
The results of the evaluation of the code argument.

See also

withr for examples

.libPaths()

Other libpaths: with_temp_libpaths()

Examples

#> [1] "/Users/runner/work/_temp/Library" #> [2] "/Library/Frameworks/R.framework/Versions/4.0/Resources/library"
new_lib <- tempfile() dir.create(new_lib) with_libpaths(new_lib, print(.libPaths()))
#> [1] "/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/RtmpWdT1kx/file13762be6543a" #> [2] "/Library/Frameworks/R.framework/Versions/4.0/Resources/library"
unlink(new_lib, recursive = TRUE)