Arrays intersection with repetition

Question

Meriem Deli 2017-5-4

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https://ww2.mathworks.cn/matlabcentral/answers/338649-arrays-intersection-with-repetition

编辑： Bruno Luong 2018-9-27

Hello,

I have two arrays output_max and output_min and I need to get the intersection between the two with the repetitions. Is there any function that can solve this problem but not intersect matlab function because it eliminates all the repetitions.

Thanks for your help

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Answer 1

Bruno Luong 2018-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/338649-arrays-intersection-with-repetition#answer_338662

编辑：Bruno Luong 2018-9-27

在 MATLAB Online 中打开

% random test data
output_min = ceil(30*rand(1,20))
output_max = ceil(30*rand(1,20))
% find the indexes of the intersect
v = intersect(output_min,output_max);
bmin = ismember(output_min,v);
bmax = ismember(output_max,v);
imin = find(bmin);
imax = find(bmax);
% check, both return all the elements of the intersect
% it might be preferable to index by logical arrays bmin, bmax
output_min(imin)
output_max(imax)