R: Unload a package

unload {pkgload} | R Documentation

## Unload a package

### Description

This function attempts to cleanly unload a package, including unloading its namespace, deleting S4 class definitions and unloading any loaded DLLs. Unfortunately S4 classes are not really designed to be cleanly unloaded, and so we have to manually modify the class dependency graph in order for it to work - this works on the cases for which we have tested but there may be others. Similarly, automated DLL unloading is best tested for simple scenarios (particularly with `useDynLib(pkgname)` and may fail in other cases. If you do encounter a failure, please file a bug report at http://github.com/r-lib/pkgload/issues.

### Usage

    unload(package = pkg_name(), quiet = FALSE)

### Arguments

`package` | package name.
`quiet` | if `TRUE` suppresses output from this function.

### Examples

    ## Not run:
    # Unload package that is in current directory
    unload()

    # Unload package that is in ./ggplot2/
    unload(pkg_name("ggplot2/"))

    library(ggplot2)
    # unload the ggplot2 package directly by name
    unload("ggplot2")

    ## End(Not run)

[Package pkgload version 1.0.1 Index]