Functions to get and set user options within an option class object.
getOptions(option.object, key)
setOptions(option.object, ...)options class object used for storing package options
any number of user options to set where either (a) the named argument is the option key and the value is the option value or (b) the single unnamed argument is a list object where each named list element is the option key and the value is the element's value
name of option to retrieve; if missing, all options are returned
Value of the option specified by key (if specified) or a list
of all options (if missing).
See PBSoptions-class for more details and
an example that uses PBSmodelling's option management functions.