Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/algorithms/tests/test_smallworld.py @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 import pytest |
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2 |
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3 numpy = pytest.importorskip("numpy") |
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4 |
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5 import random |
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6 |
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7 from networkx import random_reference, lattice_reference, sigma, omega |
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8 import networkx as nx |
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9 |
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10 rng = random.Random(0) |
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11 rng = 42 |
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12 |
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13 |
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14 def test_random_reference(): |
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15 G = nx.connected_watts_strogatz_graph(50, 6, 0.1, seed=rng) |
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16 Gr = random_reference(G, niter=1, seed=rng) |
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17 C = nx.average_clustering(G) |
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18 Cr = nx.average_clustering(Gr) |
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19 assert C > Cr |
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20 |
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21 pytest.raises(nx.NetworkXError, random_reference, nx.Graph()) |
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22 pytest.raises(nx.NetworkXNotImplemented, random_reference, nx.DiGraph()) |
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23 |
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24 H = nx.Graph(((0, 1), (2, 3))) |
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25 Hl = random_reference(H, niter=1, seed=rng) |
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26 |
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27 |
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28 def test_lattice_reference(): |
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29 G = nx.connected_watts_strogatz_graph(50, 6, 1, seed=rng) |
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30 Gl = lattice_reference(G, niter=1, seed=rng) |
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31 L = nx.average_shortest_path_length(G) |
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32 Ll = nx.average_shortest_path_length(Gl) |
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33 assert Ll > L |
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34 |
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35 pytest.raises(nx.NetworkXError, lattice_reference, nx.Graph()) |
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36 pytest.raises(nx.NetworkXNotImplemented, lattice_reference, nx.DiGraph()) |
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37 |
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38 H = nx.Graph(((0, 1), (2, 3))) |
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39 Hl = lattice_reference(H, niter=1) |
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40 |
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41 |
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42 def test_sigma(): |
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43 Gs = nx.connected_watts_strogatz_graph(50, 6, 0.1, seed=rng) |
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44 Gr = nx.connected_watts_strogatz_graph(50, 6, 1, seed=rng) |
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45 sigmas = sigma(Gs, niter=1, nrand=2, seed=rng) |
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46 sigmar = sigma(Gr, niter=1, nrand=2, seed=rng) |
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47 assert sigmar < sigmas |
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48 |
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49 |
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50 def test_omega(): |
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51 Gl = nx.connected_watts_strogatz_graph(50, 6, 0, seed=rng) |
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52 Gr = nx.connected_watts_strogatz_graph(50, 6, 1, seed=rng) |
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53 Gs = nx.connected_watts_strogatz_graph(50, 6, 0.1, seed=rng) |
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54 omegal = omega(Gl, niter=1, nrand=1, seed=rng) |
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55 omegar = omega(Gr, niter=1, nrand=1, seed=rng) |
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56 omegas = omega(Gs, niter=1, nrand=1, seed=rng) |
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57 print("omegas, omegal, omegar") |
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58 print(omegas, omegal, omegar) |
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59 assert omegal < omegas and omegas < omegar |