link {aster2}  R Documentation 
Link Functions for Aster Models
Description
Calculate link function and up to one derivative for families known to the package.
Usage
link(xi, fam, deriv = 0, delta)
Arguments
xi 
mean value parameter value, a numeric vector. 
fam 
an object of class 
deriv 
the number of derivatives wanted. Must be either zero or one. 
delta 
direction in which limit is taken. Link
function is for family that is limit of family specified, limit
being for distributions with canonical parameter

Value
a list containing some of the following components:
zeroth 
the value of the link function at 
is the dimension of \xi
.
first 
the value of the first derivative at 
Note
Not intended for use by ordinary users. Provides R interface for testing to C code called by many other functions in the package.
See Also
Examples
link(0.3, fam.bernoulli(), deriv = 1)
link(0.3, fam.bernoulli(), deriv = 1, delta = 1)