R.utils: isPackageLoaded – R documentation

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isPackageLoaded

Checks if a package is loaded or not

Checks if a package is loaded or not. Note that, contrary to require(), this function does not load the package if not loaded.

## Default S3 method:
isPackageLoaded(package, version=NULL, ...)

`package`	The name of the package.
`version`	A `character` string specifying the version to test for. If `NULL`, any version is tested for.
`...`	Not used.

Returns a logical.

Henrik Bengtsson