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BAS (version 1.2.2)

Bernoulli: Independent Bernoulli Prior Distribution for Models

Description

Creates an object representing the prior distribution on models for BAS.

Usage

Bernoulli(probs=.5)

Arguments

probs
a scalar or vector of prior inclusion probabilities. If a scalar, the values is replicated for all variables ans a 1 is added for the intercept. BAS checs to see if the length is equal to the dimension of the parameter vector for the full model and addas a 1 to include the intercept.

Value

hyerparameters.

Details

The independent Bernoulli prior distribution is a commonly used prior in BMA, with the Uniform distribution a special case with probs=.5. If all indicator variables have a independent Bernoulli distributions with common probability probs, the distribution on model size binomial(p, probs) distribution.

See Also

bas.lm, beta.binomial,uniform