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Search subarray closest other array

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galaxy
galaxy 2019-12-3
评论： galaxy 2019-12-4
Dear all
I want to search subarray closest other array as following.
A = [4, 5.5, 7, 8.1, 1, 5, 6, 7, 8, 9];
B = [5.5, 6.2, 7, 7.9]
The expected output is sub-array of A closest B which is [5, 6, 7, 8]
Do anyone have ideas?
Thank you so much
  1 个评论
galaxy
galaxy 2019-12-4
编辑：galaxy 2019-12-4
I need to search closest sub-array, not element of array.
A = [4, 5.5, 7, 8.1, 1, 5, 6, 7, 8, 9];
% | | | | closest
B = [5.5, 6.2, 7, 7.9]

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-12-3
编辑：KALYAN ACHARJYA 2019-12-3
One way:
A = [4, 5.5, 7, 8.1, 1, 5, 6, 7, 8, 9];
B = [5.5, 6.2, 7, 7.9];
for i=1:length(A)-4
result(i)=sum(A(i:i+3)-B);
end
idx=find(result==min(result));
result_array=A(idx:idx+3)
You can use simmilar logic to implement it without loop too.

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