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indexing of a matrix

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deji
deji 2011-11-9
hi, i av a 200*3588 matrix and i want to index paired numbers from each column.is there a matlab function that will help me do it or do i av to do it manually? thanks in advance

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Walter Roberson
Walter Roberson 2011-11-9
rowidx = [rowidx1, rowidx2, rowidx3, ... rowidx200];
matind = sub2ind(size(YourMatrix), [rowidx; 1+rowidx], repmat(1:size(YourMatrix,2), 2, 1) );
pairedValues = YourMatrix(matind);

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