finding the columns include ones

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sermet
sermet 2024-1-6
回答： madhan ravi 2024-1-6
matrix=[1 0 0 1 0;0 1 0 1 0];
% I need to find the number of column includes [1;1]
index_1 = 4 ;
% how can I find this using code or function?

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madhan ravi
madhan ravi 2024-1-6
index = find(all(matrix)) % one can directly use logical indexing without find() function

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