

   TTuunnaa SSiigghhttiinngg DDaattaa

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

          y: The perpendicular distance, in miles, from the
             transect for 64 independent sightings of tuna
             schools.

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

        The `tuna' data frame has 64 rows and 1 columns.

        The data come from an aerial line transect survey of
        Southern Bluefin Tuna in the Great Australian Bight.
        An aircraft with two spotters on board flies randomly
        allocated line transects.  Each school of tuna sighted
        is counted and its perpendicular distance from the
        transect measured.  The survey was conducted in summer
        when tuna tend to stay on the surface.

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

        This data frame contains the following column:

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

        The data were obtained from

        Chen, S.X. (1996) Empirical likelihood confidence
        intervals for nonparametric density estimation.
        Biometrika, 83, 329-341.

   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.

