import_graph(graph_file, file_type = NULL, graph_name = NULL, graph_time = NULL, graph_tz = NULL)
graphml
(GraphML), gml
(GML), and sif
(SIF). If not
supplied, the function will infer the type by its file extension.temporal
).tz
)
corresponding to the date or date-time string supplied as a value to
graph_time
. If no time zone is provided then it will be set to
GMT
.dgr_graph
.