Extract subgraph using names
3 次查看(过去 30 天)
显示 更早的评论
Hi MathWorks community,
I have a graph G which has 6119 nodes. I want to extract a subgraph H with only 539 nodes. The name of the nodes that need to be extract are in a seperate 539 x 1 double called NodeID. I tried the following code, but received 'Error using graph/subgraph (line 29) Nodes must be a vector of unique node indices, a vector of unique node names, or a logical vector of length equal to the number of nodes.'.
H = subgraph(G,strtrim(num2str(NodeID)))
I am not sure what the problem is and what should I do to resolve the problem.
For your reference, I am also attaching my G.Nodes and NodeID as a mat. file.
Thanks!
2 个评论
Matt J
2022-8-25
It would be easier to troubleshoot if you attached the actual inputs G and NodeID (in a .mat file) as opposed to a picture of them.
采纳的回答
Steven Lord
2022-8-25
I'd use a string array, both when naming the nodes initially and when extracting the subgraph.
B = bucky;
n = height(B);
G = graph(B, string(1:n))
nodeIDs = randperm(n, n/4) % Extract 1/4 of the nodes
G2 = subgraph(G, string(nodeIDs))
figure
plot(G)
title('Bucky')
figure
plot(G2)
title('Bucky/4')
0 个评论
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Graph and Network Algorithms 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!