Changing static node to random distribution node.

Question

Asyran Abdullah 2018-8-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/414542-changing-static-node-to-random-distribution-node

回答： Steven Lord 2018-8-12

How to change the node into random distributed node as following code.

    % code
rand('seed',123456);
x = [1 1 1 1 1 1 2 3 4 5 6 7 7 7 7 8 9 10 11 8 6];
y = [2 3 4 5 6 7 3 4 5 6 2 8 9 10 11 10 10 11 8 1 11];
weights = randi([1 10],1,21);
G = graph(x,y,weights); 
h = plot(G,'EdgeLabel',G.Edges.Weight);
title('Finding Shortest Path on Random Node'); 
path = shortestpath(G,1,9);
highlight(h,path,'NodeColor','g','EdgeColor','g')
  end

Can i change the node :

 x = [1 1 1 1 1 1 2 3 4 5 6 7 7 7 7 8 9 10 11 8 6];
y = [2 3 4 5 6 7 3 4 5 6 2 8 9 10 11 10 10 11 8 1 11];

Into random distributed node? Thanks :)

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Answer 1

Steven Lord 2018-8-12

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/414542-changing-static-node-to-random-distribution-node#answer_332499

So you want to select a random subset of the possible edges to be included in your graph? Consider using the sprandsym function to generate a sparse adjacency matrix and passing that adjacency matrix into the graph function.