Organize vector, extract indices

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Fidele Adanvo
Fidele Adanvo on 27 Nov 2020
Commented: Stephen23 on 28 Nov 2020
Hello, everything okay?
How can I efficiently do the following are between one by one in vector A?
A=[2 4]
B=[2 70 8 29 98 100]
I need to put in Out the indexes of vector B that are different from the indexes of A.
Out=find(B~=B([A]))
This is the output I need.
Out =[1 3 5 6].

Accepted Answer

Stephen23
Stephen23 on 27 Nov 2020
A = [2,4];
B = [2,70,8,29,98,100];
Out = setdiff(1:numel(B),A)
Out = 1×4
1 3 5 6
  3 Comments
Stephen23
Stephen23 on 28 Nov 2020
A = [1,4,6,10,33,200];
out = -diff(A)
out = 1×5
-3 -2 -4 -23 -167

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