power                  package:base                  R Documentation

Create a Power Link Object

Description:

     Creates a link object based on the link function eta = mu^lambda.

Usage:

     power(lambda = 1)

Arguments:

  lambda: a real number.

Details:

     If `lambda' is non-negative, it is taken as zero, and the log link
     is obtained.  The default `lambda = 1' gives the identity link.

Value:

     A list with components `linkfun', `linkinv', `mu.eta', and
     `valideta'. See `make.link' for information on their meaning.

See Also:

     `make.link', `family'

Examples:

     power()
     quasi(link=power(1/3))[c("linkfun", "linkinv")]

