MATLAB: Search subarray closest other array

closest subarrayMATLAB

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

Best Answer

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.
Related Question