Is a package installed in the library?

Source: R/env-special.R

This checks that a package is installed with minimal side effects. If installed, the package will be loaded but not attached.

is_installed(pkg)

Arguments

pkg

The name of a package.

Value

TRUE if the package is installed, FALSE otherwise.

Examples

is_installed("utils")
#> [1] TRUE
is_installed("ggplot5")
#> [1] FALSE