A generic function for the leverage of points used in various model
fitting functions. The function invokes particular methods which
depend on the class of the first argument.
Usage
leverage(object, ...)
Value
The form of the value returned depends on the class of its argument.
See the documentation of the particular methods for details of what is
produced by that method.
Arguments
object
a model object
...
other parameters which might be required by the model
Author
Thomas Lotze
Details
See the documentation of the particular methods for details.