IC.prior: Information Criterion Families of Prior Distribution for Coefficients in BMA
Models
Description
Creates an object representing the prior distribution on coefficients for
BAS.
Usage
IC.prior(penalty)
Value
returns an object of class "prior", with the family and
hyerparameters.
Arguments
penalty
a scalar used in the penalized loglikelihood of the form
penalty*dimension
Author
Merlise Clyde
Details
The log marginal likelihood is approximated as -2*(deviance +
penalty*dimension). Allows alternatives to AIC (penalty = 2) and BIC
(penalty = log(n)). For BIC, the argument may be missing, in which case the
sample size is determined from the call to `bas.glm` and used to determine
the penalty.