networkx.readwrite.edgelist.read_weighted_edgelist¶
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read_weighted_edgelist
(path, comments='#', delimiter=None, create_using=None, nodetype=None, encoding='utf-8')[source]¶ Read a graph as list of edges with numeric weights.
- Parameters
path (file or string) – File or filename to read. If a file is provided, it must be opened in ‘rb’ mode. Filenames ending in .gz or .bz2 will be uncompressed.
comments (string, optional) – The character used to indicate the start of a comment.
delimiter (string, optional) – The string used to separate values. The default is whitespace.
create_using (NetworkX graph constructor, optional (default=nx.Graph)) – Graph type to create. If graph instance, then cleared before populated.
nodetype (int, float, str, Python type, optional) – Convert node data from strings to specified type
encoding (string, optional) – Specify which encoding to use when reading file.
- Returns
G – A networkx Graph or other type specified with create_using
- Return type
graph
Notes
Since nodes must be hashable, the function nodetype must return hashable types (e.g. int, float, str, frozenset - or tuples of those, etc.)
Example edgelist file format.
With numeric edge data:
# read with # >>> G=nx.read_weighted_edgelist(fh) # source target data a b 1 a c 3.14159 d e 42
See also