Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/networkx/algorithms/centrality/tests/test_current_flow_betweenness_centrality_subset.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 np = pytest.importorskip("numpy") |
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4 scipy = pytest.importorskip("scipy") |
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5 |
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6 import networkx as nx |
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7 from networkx.testing import almost_equal |
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8 |
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9 from networkx import edge_current_flow_betweenness_centrality as edge_current_flow |
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10 |
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11 from networkx import ( |
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12 edge_current_flow_betweenness_centrality_subset as edge_current_flow_subset, |
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13 ) |
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14 |
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15 |
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16 class TestFlowBetweennessCentrality: |
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17 def test_K4_normalized(self): |
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18 """Betweenness centrality: K4""" |
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19 G = nx.complete_graph(4) |
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20 b = nx.current_flow_betweenness_centrality_subset( |
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21 G, list(G), list(G), normalized=True |
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22 ) |
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23 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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24 for n in sorted(G): |
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25 assert almost_equal(b[n], b_answer[n]) |
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26 |
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27 def test_K4(self): |
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28 """Betweenness centrality: K4""" |
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29 G = nx.complete_graph(4) |
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30 b = nx.current_flow_betweenness_centrality_subset( |
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31 G, list(G), list(G), normalized=True |
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32 ) |
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33 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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34 for n in sorted(G): |
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35 assert almost_equal(b[n], b_answer[n]) |
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36 # test weighted network |
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37 G.add_edge(0, 1, weight=0.5, other=0.3) |
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38 b = nx.current_flow_betweenness_centrality_subset( |
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39 G, list(G), list(G), normalized=True, weight=None |
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40 ) |
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41 for n in sorted(G): |
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42 assert almost_equal(b[n], b_answer[n]) |
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43 b = nx.current_flow_betweenness_centrality_subset( |
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44 G, list(G), list(G), normalized=True |
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45 ) |
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46 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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47 for n in sorted(G): |
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48 assert almost_equal(b[n], b_answer[n]) |
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49 b = nx.current_flow_betweenness_centrality_subset( |
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50 G, list(G), list(G), normalized=True, weight="other" |
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51 ) |
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52 b_answer = nx.current_flow_betweenness_centrality( |
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53 G, normalized=True, weight="other" |
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54 ) |
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55 for n in sorted(G): |
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56 assert almost_equal(b[n], b_answer[n]) |
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57 |
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58 def test_P4_normalized(self): |
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59 """Betweenness centrality: P4 normalized""" |
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60 G = nx.path_graph(4) |
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61 b = nx.current_flow_betweenness_centrality_subset( |
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62 G, list(G), list(G), normalized=True |
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63 ) |
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64 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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65 for n in sorted(G): |
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66 assert almost_equal(b[n], b_answer[n]) |
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67 |
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68 def test_P4(self): |
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69 """Betweenness centrality: P4""" |
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70 G = nx.path_graph(4) |
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71 b = nx.current_flow_betweenness_centrality_subset( |
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72 G, list(G), list(G), normalized=True |
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73 ) |
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74 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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75 for n in sorted(G): |
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76 assert almost_equal(b[n], b_answer[n]) |
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77 |
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78 def test_star(self): |
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79 """Betweenness centrality: star """ |
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80 G = nx.Graph() |
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81 nx.add_star(G, ["a", "b", "c", "d"]) |
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82 b = nx.current_flow_betweenness_centrality_subset( |
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83 G, list(G), list(G), normalized=True |
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84 ) |
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85 b_answer = nx.current_flow_betweenness_centrality(G, normalized=True) |
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86 for n in sorted(G): |
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87 assert almost_equal(b[n], b_answer[n]) |
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88 |
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89 |
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90 # class TestWeightedFlowBetweennessCentrality(): |
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91 # pass |
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92 |
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93 |
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94 class TestEdgeFlowBetweennessCentrality: |
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95 def test_K4_normalized(self): |
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96 """Betweenness centrality: K4""" |
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97 G = nx.complete_graph(4) |
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98 b = edge_current_flow_subset(G, list(G), list(G), normalized=True) |
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99 b_answer = edge_current_flow(G, normalized=True) |
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100 for (s, t), v1 in b_answer.items(): |
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101 v2 = b.get((s, t), b.get((t, s))) |
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102 assert almost_equal(v1, v2) |
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103 |
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104 def test_K4(self): |
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105 """Betweenness centrality: K4""" |
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106 G = nx.complete_graph(4) |
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107 b = edge_current_flow_subset(G, list(G), list(G), normalized=False) |
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108 b_answer = edge_current_flow(G, normalized=False) |
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109 for (s, t), v1 in b_answer.items(): |
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110 v2 = b.get((s, t), b.get((t, s))) |
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111 assert almost_equal(v1, v2) |
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112 # test weighted network |
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113 G.add_edge(0, 1, weight=0.5, other=0.3) |
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114 b = edge_current_flow_subset(G, list(G), list(G), normalized=False, weight=None) |
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115 # weight is None => same as unweighted network |
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116 for (s, t), v1 in b_answer.items(): |
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117 v2 = b.get((s, t), b.get((t, s))) |
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118 assert almost_equal(v1, v2) |
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119 |
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120 b = edge_current_flow_subset(G, list(G), list(G), normalized=False) |
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121 b_answer = edge_current_flow(G, normalized=False) |
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122 for (s, t), v1 in b_answer.items(): |
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123 v2 = b.get((s, t), b.get((t, s))) |
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124 assert almost_equal(v1, v2) |
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125 |
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126 b = edge_current_flow_subset( |
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127 G, list(G), list(G), normalized=False, weight="other" |
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128 ) |
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129 b_answer = edge_current_flow(G, normalized=False, weight="other") |
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130 for (s, t), v1 in b_answer.items(): |
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131 v2 = b.get((s, t), b.get((t, s))) |
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132 assert almost_equal(v1, v2) |
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133 |
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134 def test_C4(self): |
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135 """Edge betweenness centrality: C4""" |
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136 G = nx.cycle_graph(4) |
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137 b = edge_current_flow_subset(G, list(G), list(G), normalized=True) |
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138 b_answer = edge_current_flow(G, normalized=True) |
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139 for (s, t), v1 in b_answer.items(): |
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140 v2 = b.get((s, t), b.get((t, s))) |
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141 assert almost_equal(v1, v2) |
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142 |
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143 def test_P4(self): |
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144 """Edge betweenness centrality: P4""" |
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145 G = nx.path_graph(4) |
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146 b = edge_current_flow_subset(G, list(G), list(G), normalized=True) |
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147 b_answer = edge_current_flow(G, normalized=True) |
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148 for (s, t), v1 in b_answer.items(): |
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149 v2 = b.get((s, t), b.get((t, s))) |
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150 assert almost_equal(v1, v2) |