Coerce a BAS list object of models into a matrix.

This function coerces the list object of models to a matrix and fill in the zeros to facilitate other computations.

Usage

which.matrix(which, n.vars)

Arguments

which

a 'bas' model object x$which

n.vars

the total number of predictors, x$n.vars

Value

a matrix representation of x$which, with number of rows equal to the length of which.models or total number of models and number of columns x$n.vars

Details

which.matrix coerces x$which into a matrix.

See also

bas

Other as.matrix methods: list2matrix.bas(), list2matrix.which()

Author

Merlise Clyde clyde@duke.edu

Examples

data(Hald)
Hald.bic <-  bas.lm(Y ~ ., data=Hald, prior="BIC", initprobs="eplogp")
# matrix of model indicators
models <- which.matrix(Hald.bic$which, Hald.bic$n.vars)