Find indexes in cell array

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Davide Bordin
Davide Bordin 2022-5-10
评论： Jon 2022-5-13
Hi all,
i have 2 arrays one containing all my values (even duplicates) and one containing the unique elements.
My goal is to find the index of my values based on the index of the unique elements
R = [2 ,1 , 1 , 2 , 4 , [1,3] , [1,3] , 4 , [1,3] , [2,5] , [2,5] , 4]
C= [2 , 1 , 4 , [1,3] , [2,5]]
Vectors [1,3] should be treated as 1 unique element, not as 1 and 3
If its easier we can work with letters
R1=['2B' , '1A' , '1A' , '2B' , '1D' , '1A+1C' ,'1A+1C' , '1D' , '1A+1C' , '1B+1E' , '1B+1E', '1D']
C1=['1A' , '2B' , '1A+1C' , '1D' , '1B+1E']
In both cases i expect to get an array
idx = [2, 1, 1, 2, 4, 3, 3, 4, 3, 5, 5, 4]
The order is important, idx should be in the same order of the original R/R1 vector.
I tried find and a bit of arrayfun but couldnt get it to work
Thank you so much in advance

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Jon
Jon 2022-5-10
编辑：Jon 2022-5-10
R1={'2B' , '1A' , '1A' , '2B' , '1D' , '1A+1C' ,'1A+1C' , '1D' , '1A+1C' , '1B+1E' , '1B+1E', '1D'}
C1={'1A' , '2B' , '1A+1C' , '1D' , '1B+1E'}
[~,Locb] = ismember(R1,C1)
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Jon
Jon 2022-5-13
Glad that it helped, good luck with your project

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