power
Create a Power Link Object
Creates a link object based on the link function $\eta = \mu ^ \lambda$.
- Keywords
- models
Usage
power(lambda = 1)
Arguments
- lambda
- a real number.
Details
If lambda
is non-positive, 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.
References
Chambers, J. M. and Hastie, T. J. (1992) Statistical Models in S. Wadsworth & Brooks/Cole.
See Also
To raise a number to a power, see Arithmetic
.
To calculate the power of a test, see various functions in the
stats package, e.g., power.t.test
.
Examples
library(stats)
power()
quasi(link = power(1/3))[c("linkfun", "linkinv")]
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