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how to store data at non zero place of matrix

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Nilesh Mate
Nilesh Mate 2017-11-1
评论： Jan 2017-11-3
I have following column vector A=[0;25;35;0;-65;0] Now at place of non zero coefficient of A, I have replace it with following column vector values. B=[48.23;-57.23;-100.29] So the final matrix will be A=[0;48.23;-57.23;0;-100.29;0]

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Birdman
Birdman 2017-11-1
编辑：Birdman 2017-11-1
ind=find(A~=0)
A(ind)=B
  1 个评论
Jan
Jan 2017-11-3
The editor should show a mark, that this code could be improved: Simply omit the find to apply a faster "logical indexing":
A(A ~= 0) = B

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