/* -*- mode: C -*- */ /* IGraph library. Copyright (C) 2010-2012 Gabor Csardi 334 Harvard street, Cambridge, MA 02139 USA This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include int mf(const igraph_vector_t *input, igraph_real_t *output) { *output = 0.0; return 0; } int main() { igraph_t g, g2; igraph_vector_t weight; igraph_attribute_combination_t comb; igraph_set_attribute_table(&igraph_cattribute_table); igraph_small(&g, 4, IGRAPH_DIRECTED, 0, 1, 0, 1, 0, 1, 1, 2, 2, 3, -1); igraph_vector_init_seq(&weight, 1, igraph_ecount(&g)); SETEANV(&g, "weight", &weight); igraph_vector_destroy(&weight); /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_SUM, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_PROD, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_MIN, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_MAX, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_FIRST, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_LAST, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_MEAN, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "weight", IGRAPH_ATTRIBUTE_COMBINE_FUNCTION, mf, "", IGRAPH_ATTRIBUTE_COMBINE_IGNORE, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ /* ****************************************************** */ igraph_copy(&g2, &g); igraph_attribute_combination(&comb, "", IGRAPH_ATTRIBUTE_COMBINE_MEAN, IGRAPH_NO_MORE_ATTRIBUTES); igraph_simplify(&g2, /*multiple=*/ 1, /*loops=*/ 1, &comb); igraph_attribute_combination_destroy(&comb); igraph_write_graph_graphml(&g2, stdout, /*prefixattr=*/ 1); igraph_destroy(&g2); /* ****************************************************** */ igraph_destroy(&g); return 0; }