Hi all, I'm a beginner using SAS to perform network analysis. The data set is represented as the follows: node 1 node 2 3 1 4 2 2 3 Each column represents the id of nodes; each row represents an edge from node 1 to node 2.There are a large amount of nodes, say 200000, Now I want to convert this data set to a 200000 x 200000 adjacency matrix, i.e. each row and each column represents a node, a value 1 is set to row i column j if there is an edge from node i to node j. According to the above table the converted one is like this: 1 2 3 4 1 0 0 1 0 2 0 0 0 0 3 1 0 0 0 4 0 1 0 0 Now my problem is, because the data set is too large, when using SAS IML to create a 200000 x 200000 matrix there is insufficient memory. So I wonder if there is alternatives to create such a big matrix? If it is doable, how could I do it? Many thanks!
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