subgraph - subgraph of a graph
subgraph returns the graph g1 , built with the numbers given by the the row vector v . If ind is the string 'nodes' , g1 is built with the node numbers given by v and the connected edges of these nodes in g . If ind is the string 'edges' , g1 is built with the edge numbers given by v and the tail-head nodes of these edges in g .
All the characteristics of the old nodes and edges of g are preserved.
ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 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 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('node_diam')=[1:(g('node_number'))]+20; show_graph(g); v=[2 3 4 5 17 13 10]; show_nodes(v); g1=subgraph(v,'nodes',g); show_graph(g1); v=[10 13 12 16 20 19]; show_graph(g); show_arcs(v); g1=subgraph(v,'edges',g); show_graph(g1);
add_edge , add_node , delete_arcs , delete_nodes , supernode ,