Replacing specified elements of a matrix with elements of a vector
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Imagine a 6X6 zero matrix Z=zeros(6,6). I have a vector v=[1 2 3 4] and I want to send the elements of this vector to specified positions of of Z. The row and column positions are given by the array IJ=[2 1; 2,4; 3 5; 6,2].
IJ =
2 1
2 4
3 5
6 2
where the left column is the row numbers and the right column shows the column numbers. The result should look like this:
Z =
0 0 0 0 0 0
0 1 0 2 0 0
0 0 0 0 3 0
0 0 0 0 0 0
0 0 0 0 0 0
0 4 0 0 0 0
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