"""Method for projecting a hypergraph to a graph."""
import networkx as nx
from ..linalg import adjacency_matrix
__all__ = ["to_graph"]
[docs]def to_graph(H):
"""Graph projection (1-skeleton) of the hypergraph H.
Weights are not considered.
Parameters
----------
H : Hypergraph object
The hypergraph of interest
Returns
-------
G : networkx.Graph
The graph projection
"""
A = adjacency_matrix(H) # This is unweighted by design
G = nx.from_scipy_sparse_array(A)
G = nx.relabel_nodes(G, {i: node for i, node in enumerate(H.nodes)})
return G