replace nonzero element of matrix with vector

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fatema saba
fatema saba 2015-11-19
编辑： Stephen23 2015-11-19
Hello I have matrix A:
A=[2 3 0 0;6 0 2 4;1 2 0 7]
I want to replace nonzero element of this matrix with matrix B respectively. matrix B is:
B=[70;11;111;8;7;22;15;64]
Thank you.
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Stephen23
Stephen23 2015-11-19
编辑：Stephen23 2015-11-19
@fatema saba: you do not need to use find, it just makes the code slower and more complicated without any benefit. It is better to use logical indexing, as per Walter Roberson's answer.

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回答（1 个）

Walter Roberson
Walter Roberson 2015-11-19
A(logical(A)) = B;
or if you prefer
A(A ~= 0) = B;

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