graph: An aaa-igraph-package object that represents a directed acyclic graph that contains certain edge attributes. The shiny app returns a graph in this format and initialize_graph
will add them to a regular igraph object with sensible defaults.
Returns
A list of functions representing the response functions
Examples
### confounded exposure and outcomeb <- initialize_graph(igraph::graph_from_literal(X -+ Y, Ur -+ X, Ur -+ Y))create_response_function(b)