# Compare two vectors in matlab n*m

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marwa hajji2021-10-5

A=[1 2 3 4 5 6 7 8 9 10]
B=[4]
I want to compare these two vectors one by one. I want MATLAB to write as a result of it. for example,
with A(1)(1 here) If 1=B(1) the result should be 1/2, and if A(n)<B(1) the result should be 1, and A(n)>B(1) = 0.
It should compare all elements one by one and output its index in a new vector.

### 采纳的回答

Rik 2021-10-5
You mean like this?
A=[1 2 3 4 5 6 7 8 9 10];
B=4;
result=zeros(size(A));%pre-allocate
L= A<B ;result(L)=1;
L= A==B;result(L)=1/2;
disp(result)
1.0000 1.0000 1.0000 0.5000 0 0 0 0 0 0
##### 2 个评论显示隐藏 1更早的评论
Rik 2021-10-5
You're welcome. Did either of our answers solve your problem? If so, please consider marking one of them as accepted answer. If the other helped as well, please consider giving that one an up vote.

### 更多回答（1 个）

KSSV 2021-10-5
A=[1 2 3 4 5 6 7 8 9 10] ;
B=4 ;
idx = A >= B
idx = 1×10 logical array
0 0 0 1 1 1 1 1 1 1
##### 1 个评论显示隐藏 无
marwa hajji 2021-10-5
thank you

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