isPackageLoaded.default

isPackageLoaded

package

A <code><a rd-options="base" href="/link/character?package=R.utils&version=2.9.0&to=base" data-mini-rdoc="base::character">character</a></code> string specifying the version to test for.
 If <code><a rd-options="base" href="/link/NULL?package=R.utils&version=2.9.0&to=base" data-mini-rdoc="base::NULL">NULL</a></code>, any version is tested for.

version

Checks if a package is loaded or not.
 Note that, contrary to <code><a rd-options="base:library" href="/link/require?package=R.utils&version=2.9.0&to=base%3Alibrary" data-mini-rdoc="base:library::require">require</a>()</code>,
 this function does not load the package if not loaded.

utilities

Utility functions useful when programming and developing R packages.

Henrik Bengtsson

R.utils

Various Programming Utilities

isPackageLoaded function

A <code><a rd-options='base' href='character'>character</a></code> string specifying the version to test for.
 If <code><a rd-options='base' href='NULL'>NULL</a></code>, any version is tested for.

Checks if a package is loaded or not.
 Note that, contrary to <code><a rd-options='base:library' href='require'>require</a>()</code>,
 this function does not load the package if not loaded.

isPackageLoaded: Checks if a package is loaded or not

Description

Usage

Arguments

Value

See Also