dev_mode: Activate and deactivate development mode.
Description
When activated, dev_mode creates a new library for
storing installed packages. This new library is
automatically created when dev_mode is activated
if it does not already exist. This allows you to test
development packages in a sandbox, without interfering
with the other packages you have installed.
Usage
dev_mode(on = NULL, path = "~/R-dev")
Arguments
on
turn dev mode on (TRUE) or off
(FALSE). If omitted will guess based on whether
or not path is in .libPaths