Adding a number to a vector depending on a different vector
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I have a column vector containing only zeros and ones (A) I have another column vector, the same length as A, containing numerous integers (B)
I need to add 128 to the value in B if there is a 1 in A.
so an example of what I need...
A = [ 0 0 0 0 0 1 0 0 0 0 ]';
B = [55 56 54 58 61 60 62 63 61 58]';
In this case, I need to add 128 to the 6th element in B.
How can I automate this please. Thanks
采纳的回答
Use a simple multiplication:
B + A*128
or perhaps logical indexing:
B(A==1) = B(A==1)+128
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