networkx.algorithms.isomorphism.categorical_node_match¶
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categorical_node_match
(attr, default)[source]¶ Returns a comparison function for a categorical node attribute.
The value(s) of the attr(s) must be hashable and comparable via the == operator since they are placed into a set([]) object. If the sets from G1 and G2 are the same, then the constructed function returns True.
Parameters: - attr (string | list) – The categorical node attribute to compare, or a list of categorical node attributes to compare.
- default (value | list) – The default value for the categorical node attribute, or a list of default values for the categorical node attributes.
Returns: match – The customized, categorical
node_match
function.Return type: Examples
>>> import networkx.algorithms.isomorphism as iso >>> nm = iso.categorical_node_match('size', 1) >>> nm = iso.categorical_node_match(['color', 'size'], ['red', 2])