How to calculate adjacency matrix ?

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muhammad ismat
muhammad ismat 2018-3-23
回答： Walter Roberson 2018-3-24
if i have data rearranged as follow
0 1 2 3
1 3 5 7
2 4 6 7
where this data mean that first element of first row connect with remaining element in first row and second element of second row connect with remaining element in second row so i want to calculate the adjacency matrix in the form
0 1 1 1 0 0 0 0
0 0 0 1 0 1 0 1
0 0 0 0 4 0 1 1
  2 个评论
Guillaume
Guillaume 2018-3-23
I do not understand first element of first row connect with remaining element in first row
An adjacency matrix is always square. So your output is not an adjacency matrix.
You need to give a much better explanation of what your input matrix represents and how to generate your not_an_adjacency_matrix output from it.
muhammad ismat
muhammad ismat 2018-3-24
first row mean that user number 0 connect with user number 1, 2, 3 and there is a relation between user 1 and users 3, 5, 7 and so on. i want to obtain on adjacency matrix
0 1 1 1 0 0 0 0
1 0 0 1 0 1 0 1
1 0 0 0 1 0 1 1
1 1 0 0 0 0 0 0
0 0 1 0 0 0 0 0
0 1 0 0 0 0 0 0
0 0 1 0 0 0 0 0
0 1 1 0 0 0 0 0

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回答（1 个）

Walter Roberson
Walter Roberson 2018-3-24
A = [0 1 2 3
1 3 5 7
2 4 6 7];
[r, c, s] = find(A);
adj = full(sparse(r,s+1,1));

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