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how to define row matrix in which first few elements are non zero rest are zeros in matlab

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Satishkumar D
Satishkumar D 2015-9-3
回答： Star Strider 2015-9-4
i want to define row matrix, length of row matrix = 209; in this row matrix elements for these positions : 0, 3, 7, 13, 21 are 1 and rest are zeros;
one way is straight forward.. just typing row matrix.
any shortcuts to write row matrix in matlab?

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Star Strider
Star Strider 2015-9-4
This works:
v = zeros(1,209);
v([1, 3, 7, 13, 21]) = 1;
MATLAB indexing begins with 1, not 0, so I changed your index vector to conform to that. You may have to change your other index elements (perhaps add 1 to each of them), but that will not affect the code.

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