causaldag.classes.ancestral_graph.AncestralGraph.add_node

AncestralGraph.add_node(node: Hashable)

Add a node to the ancestral graph.

Parameters:node – a hashable Python object

See also

add_nodes_from()

Examples

>>> import causaldag as cd
>>> g = cd.AncestralGraph()
>>> g.add_node(1)
>>> g.add_node(2)
>>> len(g.nodes)
2