

   GGeett DDoommaaiinn ffoorr SSppaattiiaall PPooiinntt PPaatttteerrnn AAnnaallyysseess

        ppgetregion()

   DDeessccrriippttiioonn::

        Retrieves the rectangular domain `(xl, xu)'  x  `(yl,
        yu)' from the underlying `C' code..

   VVaalluuee::

        A vector of length four with names `c("xl", "xu", "yl",
        "yu")'.

   SSeeee AAllssoo::

        `ppregion'

