storing indices of some entries in a matrix

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R yan
R yan 2014-4-20
编辑： Mischa Kim 2014-4-20
I want to store the index of all the entries with value 5 in a matrix. is there an inbuilt function for it.

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Mischa Kim
Mischa Kim 2014-4-20
编辑：Mischa Kim 2014-4-20
Ryan, use
[r c] = find(data==5)
r and c are the row and column indices of all data entries equal to 5.

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