cugraph.experimental.PropertyGraph.has_duplicate_edges#

classmethod PropertyGraph.has_duplicate_edges(df, columns=None)[source]#

Return True if df has rows with the same src, dst, type, and columns

Parameters:

dfdataframe: Containing the edges to test test for duplicates
columnslist of strings, optional: List of column names to use when testing for duplicate edges in addition to source, destination and type.

Returns:

bool: True if df has multiple rows with the same source, destination and type plus columns that are specified.

Examples

>>> import cugraph
>>> import cudf
>>> from cugraph.experimental import PropertyGraph
>>> df = cudf.DataFrame(columns=["src", "dst", "some_property"],
...                     data=[(99, 22, "a"),
...                           (98, 34, "b"),
...                           (97, 56, "c"),
...                           (96, 88, "d"),
...                          ])
>>> pG = PropertyGraph()
>>> pG.add_edge_data(df, type_name="etype", vertex_col_names=("src", "dst"))
>>> PropertyGraph.has_duplicate_edges(pG.get_edge_data())
False