

   SSppaattiiaall LLooccaattiioonn ooff BBrraammbbllee CCaanneess

   AArrgguummeennttss::

          x: The x coordinate of the position of the cane in
             the plot.

          y: The y coordinate of the position of the cane in
             the plot.

        age: The age classification of the canes; `0' indicates
             a newly emerged cane, `1' indicates a one year old
             cane and `2' indicates a two year old cane.

   SSUUMMMMAARRYY::

        The `brambles' data frame has 823 rows and 3 columns.

        The location of living bramble canes in a 9m square
        plot was recorded.  We take 9m to be the unit of dis-
        tance so that the plot can be thought of as a unit
        square. The bramble canes were also classified by their
        age.

   DDAATTAA DDEESSCCRRIIPPTTIIOONN::

        This data frame contains the following columns:

   SSOOUURRCCEE::

        The data were obtained from

        Diggle, P.J. (1983) Statistical Analysis of Spatial
        Point Patterns.  Academic Press.

   OOTTHHEERR RREEFFEERREENNCCEESS::

        Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Meth-
        ods and Their Application. Cambridge University Press.

