<｜begin▁of▁sentence｜>### Instruction:
{'Description': 'Given the karate club graph, compute the eigenvalues of the modularity matrix.', 'Data': "The graph used in this example is the built-in Zachary's Karate Club graph in NetworkX, which is a well-known social network graph.", 'Problem': 'The code computes the eigenvalues of the modularity matrix, which can be used to assess the presence of community structure within a network. This helps in understanding the modular organization of the graph, based on the work by M. E. J. Newman.'}
### Response:
import networkx as nx
import numpy as np

# Create a graph
G = nx.karate_club_graph()

# Calculate the modularity spectrum
mod_spectrum = nx.modularity_spectrum(G)
print('Modularity Spectrum:', mod_spectrum)
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