function B = cedge(n)
%
% B = cedge(n)
%
% Determines edge matrix for complete graph through n vertices
%
% B will be a 2 by n(n-1)/2 matrix giving the edges
% the ith row of B says which two nodes are connected by edge i
%
% See also CGRAPH, CGON, GRAPH, INCIDENCE, NETW, NGON
k = 1;
for i = 1:n-1,
for j = i+1:n,
B(k,1) = i;
B(k,2) = j;
k = k+1;
end
end