Sets the missing values for the variable.
No more than three missing values may be specified.
+=head3 get_attributes()
+
+Returns a reference to a hash of the custom variable attributes.
+Each value of the hash is a reference to an array containing the
+attribute values.
+
=head3 get_name ()
Returns the name of the variable.
=head1 COPYRIGHT AND LICENSE
-Copyright (C) 2007, 2008 by Free Software Foundation
+Copyright (C) 2007, 2008, 2009 by Free Software Foundation
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by