Unified approach to query a graph about its properties (based partly on functionality from gRbase and functionality imported from RBGL).
querygraph(object, op, set = NULL, set2 = NULL, set3 = NULL)qgraph(object, op, set = NULL, set2 = NULL, set3 = NULL)
ancestors(set, object)
ancestralSet(set, object)
parents(set, object)
children(set, object)
closure(set, object)
simplicialNodes(object)
ancestralGraph(set, object)
is.complete(object, set = NULL)
is.decomposition(set, set2, set3, object)
is.simplicial(set, object)
A graph.
The operation or query.
Sets of nodes in graph.