volume.ellipsoid           package:cluster           R Documentation

Compute the Volume of Planar Object

Description:

     Compute the volume of a planar object. This is a generic function
     and a method for 'ellipsoid' objects.

Usage:

     ## S3 method for class 'ellipsoid':
     volume(object)

Arguments:

  object: an R object the volume of which is wanted; for the
          'ellipsoid' method, an object of that class (see
          'ellipsoidhull' or the example below).

Value:

     a number, the volume of the given 'object'.

See Also:

     'ellipsoidhull' for spanning ellipsoid computation.

Examples:

     ## example(ellipsoidhull) # which defines `ellipsoid' object <namefoo>

     myEl <- structure(list(cov = rbind(c(3,1),1:2), loc = c(0,0), d2 = 10),
                        class = "ellipsoid")
     volume(myEl)# i.e. "area" here (d = 2)
     myEl # also mentions the "volume"

