causal_networkx.io.load_from_networkx

causal_networkx.io.load_from_networkx(G)

Load causal graph from networkx.

Parameters:

G : nx.DiGraph | nx.MultiDiGraph

The networkx graph, which contains multiple edges if there are edge attributes needed for each edge between nodes. The edge attributes encode which type of edge it is. See Notes.

Returns:

graph : instance of causal DAG

The causal graph.

Notes

Networkx does not support mixed edge graphs implicitly. However, they do support edge attributes. A networkx.DiGraph encodes a normal causal causal_networkx.DAG, while a networkx.MultiDiGraph encodes all other causal graphs, such as causal_networkx.CPDAG, causal_networkx.PAG, causal_networkx.ADMG by storing the different edges as edge attributes in the keyword “type”.

Moreover, the graph type is stored in the “graph_type” networkx graph attribute.