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.TH add_edge 1 "September 1996" "Scilab Group" "Scilab function"
.so ../sci.an
.SH NAME
add_edge - adds an edge or an arc between two nodes
.SH CALLING SEQUENCE
.nf
g1 = add_edge(i,j,g)
.fi
.SH PARAMETERS
.TP 2
i
: integer, number of start node
.TP 2
j
: integer, number of end node
.TP 2
g
: graph list
.TP 3
g1
: graph list of the new graph with the added edge
.SH DESCRIPTION
\fVadd_edge\fR returns the graph \fVg1\fR with a new edge from node number
\fVi\fR to node number \fVj\fR. If the graph is directed, the edge is an arc.
The number of edges plus 1 is taken as the name of the new edge.
.SH EXAMPLE
.nf
ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 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 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];
show_graph(g);
g=add_edge(1,7,g);
g('edge_color')=[ones(ta) 11];
show_graph(g);
.fi
.SH SEE ALSO
add_node, delete_arcs, delete_nodes
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