Find intervals in a vector

2021 2 10
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更新时间：2021 2 10
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Lets suppose we have the vector A=[0 5 7 8 0 0 0 1 9 6 0 0 1 2]. The goal is to extract the indices of the different intervals inside the vector A and write it in seperate vectors. With intervals I mean the nonzero numbers. So at the end of the code I want the vectors B=(2 3 4) C=(8 9 10) D=(13 14), where the entries are the indices of the intervals (consecutive nonzero numbers) in A.
Is there a possibility to accomplish this task in a general way ?
Thanks

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David Hill
David Hill 2021-2-10

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a=find(A~=0);
b=[0,find(diff(a)>1),length(a)];
for k=2:length(b)
c{k-1}=a(b(k-1)+1):a(b(k));
end

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