How get adjacency matrix from this code
显示 更早的评论
N = input('no. of Nodes');
p = input('Give the possibility');
m = (n*(n-1))/2;
degree=zeros(N,1);
position=zeros(N,2);
for m=1:N
position(m,1)=cos(m/N*2*pi);
position(m,2)=sin(m/N*2*pi);
end
hold on;
plot(position(:,1),position(:,2),'d')
for m=1:N
for n=m+1:N
if(rand(1,1)<p)
degree(m,1)=degree(m,1)+1;
degree(n,1)=degree(n,1)+1;
plot(position([m,n],1),position([m,n],2))
end
end
end
hold off;
回答（1 个）
I would recommend to use the inbuilt functions for working with graphs - it makes life much easier:
N = input('no. of Nodes');
p = input('Give the possibility');
% Make adjacency matrix
idx = find(triu(ones(N),1));
V = rand(((N-1)*N)/2,1)<p;
A = zeros(N);
A(idx) = V;
A = A + triu(A,1)';
% create and plot undirected graph object
g = graph(A)
plot(g)
A good start for reading is here:
4 个评论
Konstantinos koutsikakis
2020-11-1
Stephan
2020-11-1
Like your code it produces random edges between knots with a given probability.
Konstantinos koutsikakis
2020-11-1
Walter Roberson
2020-11-1
https://www.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.graphplot.layout.html#d122e485652
类别
在 帮助中心 和 File Exchange 中查找有关 Graph and Network Algorithms 的更多信息
2020-10-30
2020-11-1
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
