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    %% In-degree of Subset of Graph Nodes
% Create and plot a directed graph with named nodes. Then compute the
% number of edges that have the |'a'|, |'b'|, and |'f'| nodes as their
% target.

% Copyright 2015 The MathWorks, Inc.

s = {'a' 'c' 'b' 'b' 'd' 'e' 'a' 'b'};
t = {'b' 'b' 'd' 'e' 'f' 'f' 'f' 'f'};
G = digraph(s,t);
plot(G)

%%
%
nodeID = {'a' 'b' 'f'}';
indeg = indegree(G,nodeID)

%%
% |indeg(j)| indicates the in-degree of node |nodeID(j)|.