Detect sequence of numbers in array
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I want to be able to detect when a sequence of numbers starts and finishes in an array. For example, if I have
A = [1 0 1 0 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0];
B = [1 1 0 0];
Can I determine whether A contains B and if A does contain B, get the index of A that B starts and stops (so 7 and 18 here)
Thank you
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Accepted Answer
the cyclist
on 17 Mar 2017
Edited: the cyclist
on 17 Mar 2017
strfind(A,B)
will find the starting indices where B is embedded in A.
It is not perfectly clear to me how you want to handle repetitions, or repetitions with gaps, etc. So, maybe this is enough to get you started?
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More Answers (1)
Jan
on 17 Mar 2017
The sequence is found at the positions 7, 11 and 15. If you search for "7, 18", I guees you want:
Index = strfind(A, B);
Result = [Index(1), Index(end) + length(b) - 1];
A fallback is required, when no match is found.
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