tail nodes of incoming arcs of a node
a = predecessors(i,g)
integer
row vector of integers
predecessors
returns the row vector of the numbers of the tail nodes of
the incoming arcs to node i
for a directed graph g
.
ta=[1 6 2 4 7 5 6 8 4 3 5 1]; he=[2 1 3 6 4 8 8 7 2 7 3 5]; g=make_graph('foo',1,8,ta,he); g.nodes.graphics.x=[285 284 335 160 405 189 118 45]; g.nodes.graphics.y=[266 179 83 176 368 252 64 309]; g.nodes.graphics.colors(2,8)=color('red'); show_graph(g); a=predecessors(8,g) hilite_nodes(a); | ![]() | ![]() |