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Operation on structure fields with common part of the field name

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Hi, I have succesfully imported several mat files into a structure with fields names beginning either by "DUT" or "REF". Now I need to divide all the fileds beginning by "DUT" to the corresponding one beginning by "REF", for example, I want to compute DUT_2/REF_2, DUT_4/REF_4 etc...
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Romain Liechti
Romain Liechti on 7 May 2019
Yes, all the DUT have a matching REF. No particular order, the aim at the end is to have a structure of the ratio of DUT/REF with the corresponding name 1, 2 etc.
Yeah I know that's probably not the best way to do it, but I've loaded the data from my folder (all the DUT and REF files) into this structure, with the name of the file as the name of the field.
Any other idea is of course welcome

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Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 7 May 2019
Edited: Stephen Cobeldick on 7 May 2019
S.DUT_2 = 2;
S.REF_2 = 3;
S.DUT_4 = 4;
S.REF_4 = 5;
C = fieldnames(S);
U = unique(regexp(C,'\d+$','once','match'))
F = @(n)S.(['DUT_',n]) ./ S.(['REF_',n]);
Z = cellfun(F,U)
Giving:
U =
'2'
'4'
Z =
0.66667
0.8
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