Campus Livre
findnode
Index of a node given its name.
Category: Mathematics > Graph and Network Algorithms
Syntax
idx = findnode(G, name)Returns the index of the node called name.
idx = findnode(G, names)For a cell array of names, returns one index per name.
Description
Node names are stored in G.Nodes.Name. findnode is the lookup from name to position, useful because most graph functions return numeric indices.
Input arguments
G- A graph with node names.
name- Character vector, or cell array of them.
Output arguments
idx- Node index, or
0for a name that is not in the graph.
Example
Names to indices
G = graph({'a','b','c'}, {'b','c','a'});
findnode(G, 'b')
findnode(G, {'c','a'})
findnode(G, 'zz')Output
ans = 2
ans = 2×1
3
1
ans = 0