Adding numbers in an array
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Hi, I have an array like A=[3;4 4; 6 6 ;5 5 5; 1 1 1 1]. I want to assign ascending numbers into this array as A(:,2)=[1; 2 2 ; 3 3 ; 4 4 4 ; 5 5 5 5] corresponding to each distinct numbers in A. Does anyone know how to do it? Thanks
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the cyclist
2017-3-5
Your notation for specifying A is not valid syntax, so it is unclear what you mean.
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the cyclist
2017-3-5
As I mentioned in my comment, it is not perfectly clear what you mean, but I think the unique command might do what you want. I redefined your definition of A, and used unique.
A = [3; 4; 4; 6; 6; 5; 5; 5; 1; 1; 1; 1]
[uA,i,j] = unique(A,'stable')
The value of j seems like what you want.
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