Some functions not pertaining to the package core require additional
libraries. These libraries are listed as *suggested* in the `DESCRIPTION`
When such a function is called by a user who does not have the respective
libraries installed, we should notice that and notify the user. This is the
purpose of this *function* `check_for_package`.
Usage
check_for_package(package, stop = TRUE)
Arguments
- package
Name of the package to check for.
- stop
Toggle whether an error should be thrown (`TRUE`) or a warning
generated (`FALSE`).
Value
`TRUE` if the package was found. `FALSE` if it wasn't found and
*stop* is `FALSE`. Otherwise, an error will be thrown.
Details
The function checks if *package* is installed and loaded. If not, it
either produces a warning or throws an error, depending on the value of
*stop*.
