pcalg (version 2.0-3)

EssGraph-class: Class "EssGraph"

Description

This class represents an (observentional or interventional) essential graph.

encoding

UTF-8

Extends

All reference classes extend and inherit methods from "envRefClass".

Details

An observational or interventional Markov equivalence class of DAGs can be uniquely represented by a partially directed graph, the essential graph. Its edges have the following interpretation:

1. a directed edge$a \longrightarrow b$stands for an arrow that has the same orientation in all representatives of the Markov equivalence class;
2. an undirected edge$a - b$stands for an arrow that is oriented in one way in some representatives of the equivalence class and in the other way in other representatives of the equivalence class.

See Also

ParDAG

Examples

showClass("EssGraph")