Man Scilab

subgraph
Scilab function

subgraph - subgraph of a graph

Calling Sequence

g1 = subgraph(v,ind,g)

Parameters

Description

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.

Examples


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);
 
  

See Also

add_edge ,   add_node ,   delete_arcs ,   delete_nodes ,   supernode ,  

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