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Vector Combination - Matlab Noob

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Mark
Mark 2013-3-28
I have two vectors that I want to merge together. Essentially I want to add them together to create another vector R3, but there is one trick. R consists of either positive or negative values or zeros. R2 consists of only 1's and zeros. In the combining, if there is a 1 in R2 in the same row as R the value should be that of R and not R2. Ex.
R =
0
0
0
-120
0
0
0
0
90
0
0
0
R2 =
1
1
0
1
0
0
0
1
0
0
0
0
Desired R3 =
1
1
0
-120
0
0
0
1
90
0
0
0
And NOT R3 =
1
1
0
-119
0
0
0
1
90
0
0
0

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-3-28
out=R2
idx=R~=0
out(idx)=R(idx)

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