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/* vim:set ts=2 sw=2 sts=2 et: */
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Copyright (C) 2007 Gabor Csardi <csardi@rmki.kfki.hu>
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MTA RMKI, Konkoly-Thege Miklos st. 29-33, Budapest 1121, Hungary
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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igraph_vector_t membership, weights, initial;
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igraph_vector_bool_t fixed;
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/* Zachary Karate club -- this is just a quick smoke test */
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igraph_small(&g, 0, IGRAPH_UNDIRECTED,
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0, 1, 0, 2, 0, 3, 0, 4, 0, 5,
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0, 6, 0, 7, 0, 8, 0, 10, 0, 11,
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0, 12, 0, 13, 0, 17, 0, 19, 0, 21,
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0, 31, 1, 2, 1, 3, 1, 7, 1, 13,
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1, 17, 1, 19, 1, 21, 1, 30, 2, 3,
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2, 7, 2, 8, 2, 9, 2, 13, 2, 27,
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2, 28, 2, 32, 3, 7, 3, 12, 3, 13,
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4, 6, 4, 10, 5, 6, 5, 10, 5, 16,
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6, 16, 8, 30, 8, 32, 8, 33, 9, 33,
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13, 33, 14, 32, 14, 33, 15, 32, 15, 33,
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18, 32, 18, 33, 19, 33, 20, 32, 20, 33,
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22, 32, 22, 33, 23, 25, 23, 27, 23, 29,
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23, 32, 23, 33, 24, 25, 24, 27, 24, 31,
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25, 31, 26, 29, 26, 33, 27, 33, 28, 31,
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28, 33, 29, 32, 29, 33, 30, 32, 30, 33,
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31, 32, 31, 33, 32, 33,
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igraph_vector_init(&membership, 0);
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if (igraph_vector_max(&membership) > 3) {
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printf("Resulting graph had more than four clusters:\n");
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for (i=0; i<igraph_vcount(&g); i++)
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printf("%li ", (long)VECTOR(membership)[i]);
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/* Simple star graph to test weights */
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igraph_small(&g, 0, IGRAPH_UNDIRECTED,
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0, 1, 0, 2, 0, 3, 0, 4, 0, 5,
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2, 3, 2, 4, 3, 4, 3, 5, 4, 5, -1);
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igraph_vector_init_int_end(&weights, -1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1);
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igraph_vector_init_int_end(&initial, -1, 0, 0, 1, 1, 1, 1, -1);
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igraph_vector_bool_init(&fixed, 6);
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igraph_community_label_propagation(&g, &membership, &weights,
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for (i=0; i<igraph_vcount(&g); i++)
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if (VECTOR(membership)[i] != (i < 2 ? 0 : 1)) return 3;
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igraph_community_label_propagation(&g, &membership, 0,
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for (i=0; i<igraph_vcount(&g); i++)
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if (VECTOR(membership)[i] != 0) return 4;
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igraph_vector_bool_destroy(&fixed);
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igraph_vector_destroy(&weights);
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igraph_vector_destroy(&initial);
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igraph_vector_destroy(&membership);
added
removed
examples/simple/igraph_community_label_propagation.c
