Scilab Reference Manual |
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graph_sum — sum of two graphs
g2 = graph_sum(g,g1)
graph_sum creates a graph g2 with an adjacency matrix equal to the sum of the adjacency matrices of the two graphs g and g1. g and g1 are supposed to be simple graphs (use graph_simp before calling graph_complement if necessary) and to have the same number of nodes.
ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 10 11 12 13 13 13 14 15 16 16 17 17]; he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 13 15 12 13 9 10 14 11 16 1 17 14 15]; g=make_graph('foo',1,17,ta,he); g('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642]; g('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301]; g('edge_color')=modulo([1:(edge_number(g))],15)+1; g('edge_width')=ones(1,(edge_number(g))); g('node_diam')=[1:(g('node_number'))]+20; g('node_name')=['A' 'B' 'C' 'D' 'E' 'F' 'G' 'H' 'I' 'J' 'K' 'L' 'M' 'N' 'O' 'P' 'Q']; show_graph(g); ta=[2 3 4 5 11 12 1]; he=[10 5 6 7 15 17 7]; g1=make_graph('foo',1,17,ta,he); g1('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642]; g1('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301]; g1('edge_color')=modulo([1:(edge_number(g1))],15)+1; g1('edge_width')=10*ones(1,(edge_number(g1))); g1('node_diam')=[1:(g1('node_number'))]+20; g1('node_name')=['A' 'B' 'C' 'D' 'E' 'F' 'G' 'H' 'I' 'J' 'K' 'L' 'M' 'N' 'O' 'P' 'Q']; show_graph(g1,'new'); g2=graph_sum(g,g1); show_graph(g2,'new');
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