Compare elements within cell array

2017 12 28
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更新时间：2018 1 2
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Hi all
I have a cell array A
A={[1x4 cell];[1x3 cell];[1x5 cell]}
A{1,1}= {[1,-0.03,0.1,1.3,0,0.23,1,0,0.2],[1,0.6,0.1,2,0,0.6,0.6,0,0.6],[1,-0.15,0,1.4,0,0.35,1,0,0.3],[2,-0.2,0.1,3,0,0.4,0,0,0.4]}; similarly values for other A{2,1} and A{3,1}
I want to compare all elements of A with every other element. Like A{1,1}{1,1} with A{1,1}{1,2}, A{1,1}{1,3} and A{1,1}{1,4} and similarly A{1,1}{1,2} with all others to find which one is less. If every single element (col values) is less it means that row is less than other row. store index of that row in a separate array. and same for other elements of A.
Kindly help.

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KSSV
KSSV 2017-12-28

0 个投票

YOu can get the minimum value of each cell using cellfun and min.
A{1,1}= {[1,-0.03,0.1,1.3,0,0.23,1,0,0.2],[1,0.6,0.1,2,0,0.6,0.6,0,0.6],[1,-0.15,0,1.4,0,0.35,1,0,0.3],[2,-0.2,0.1,3,0,0.4,0,0,0.4]};
cellfun(@min,A{1})

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Tha saliem
Tha saliem 2017-12-28
Hi thanks for your answer. But i do not need to find the minimum row. I just want to compare each row with row and tell either it is less than the other one or not.
KSSV
KSSV 2017-12-28
A{1,1}= {[1,-0.03,0.1,1.3,0,0.23,1,0,0.2],[1,0.6,0.1,2,0,0.6,0.6,0,0.6],[1,-0.15,0,1.4,0,0.35,1,0,0.3],[2,-0.2,0.1,3,0,0.4,0,0,0.4]};
B = cell2mat(A{1}) ;
B = reshape(B,9,4)' ;
B(1:end-1,:)<B(2:end,:)
Tha saliem
Tha saliem 2017-12-28
编辑：Tha saliem 2017-12-28
Thank you so much. I got the idea of doing it. One more thing i want to ask is that using this code I can compare row1 with row2 row3 and row4. I want to compare remaining rows with each other as well. Like row2 with row1 row3 and row 4. Row3 with row1 row2 and row4 and similarly other rows.
Is there any simple way to do it without writing this statement for every single row or using loops. because i have a large dataset on which this comparison will be done.
Tha saliem
Tha saliem 2018-1-2
Can you please help on this question because you have solved the problem related to it here:
https://www.mathworks.com/matlabcentral/answers/375162-get-row-no-where-comparison-gives-1

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