After loading the package, it tries to find a configuration in your home
directory. The R command path.expand("~/.openml/config") gives you the
full path to the configuration file on your operating system.
For further information please read the vignette.
By default the cache directory is located in a temporary directory and the cache will be deleted in between R sessions. We thus recommend to set the cache directory by hand.
Other config: getOMLConfig,
loadOMLConfig, saveOMLConfig,
setOMLConfig