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.TH graph_simp 1 "September 1996" "Scilab Group" "Scilab function"
.so ../sci.an
.SH NAME
graph_simp - converts a graph to a simple undirected graph
.SH CALLING SEQUENCE
.nf
g1 = graph_simp(g)
.fi
.SH PARAMETERS
.TP 2
g
: graph list of the old graph
.TP 3
g1
: graph list of the new graph
.SH DESCRIPTION
\fVgraph_simp\fR returns the simple undirected graph \fVg1\fR corresponding to
multigraph \fVg\fR. It deletes loops in \fVg\fR, replaces directed edges
with undirected edges and replaces multiple edges with single edges.
.SH EXAMPLE
.nf
ta=[1 1 1 2 2 2 3 4 4 4 5 5 6 7 7 8 8 9 9 10 10 10 10 10 11 12 12 13 13 13 14 15 16 16 17 17];
he=[1 2 10 3 5 7 4 2 9 9 4 6 6 8 2 6 9 7 4 7 11 13 13 15 12 11 13 9 10 14 11 16 1 17 14 15];
g=make_graph('foo',1,17,ta,he);
g('node_x')=[283 163 63 98 164 162 273 235 267 384 504 493 409 573 601 627 642];
g('node_y')=[ 59 133 223 311 227 299 221 288 384 141 209 299 398 383 187 121 301];
show_graph(g);
g1=graph_simp(g);
show_graph(g1,'new');
.fi
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