createAbnDag function

Make DAG of class "abnDag"

createAbnDag( dag, data.df = NULL, data.dists = NULL, ...)

Arguments

• dag: a matrix or a formula specifying a DAG, see Details .
• data.df: named dataframe.
• data.dists: named list giving the distribution for each node in the network. If not provided it will be sample and returned.
• ...: further arguments passed to or from other methods.

Returns

abnDag object as list of dag, data.df, data.dists.

Create a legitimate DAGs

Create a legitimate DAG in the abn format.

An object of class abnDag containing a named matrix and a named list giving the distribution for each node.

Details

An object of class class(abnDag) contains a named matrix describing the DAG and possibly additional objects such as the associated distributions of the nodes. If the dag is specified with a formula, either data.df or data.dists is required with the . quantifier. If the dag is specified with an unnamed matrix and both data.df and data.dists are missing, lower-case letters of the Roman alphabet are used for the node names.

Examples

dagFromFormula <- createAbnDag(dag = ~a+b|a,
                              data.df = data.frame("a"=1, "b"=1),
                              data.dists = list(a="binomial", b="gaussian"))
dagFromMatrix <- createAbnDag(dag = matrix(c(0,1,0,0), 2, 2),
                              data.df = data.frame("a"=1, "b"=1),
                              data.dists = list(a="binomial", b="gaussian"))
plot(dagFromMatrix)