How to sort a cell array with respect to another cell array?
9 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hello:
If I have cell array A:
cellA = {'A', 'B', 'C', 'D'; 1, 2, 3, 4; 5, 6, 7, 8; 9, 1, 2, 3}
and cell array B:
cellB = {'C', 'A', 'D'; 1, 2, 3; 4, 5, 6; 7, 8, 9}
Is there a way to sort cellB with respect to cellA (specifically the first row, but with the capability to look to other rows to tiebreak)? Such that the final cellB array looks something like this, including the null spaces:
cellBFinal = {'A' '' 'C' 'D'; 2 [] 1 3; 5 [] 4 6; 8 [] 7 9}
Thank you!
0 commentaires
Réponse acceptée
Dyuman Joshi
le 27 Juin 2023
Here's one approach -
%Note that this approaches requires the 1st row of cellA to be sorted
cellA = {'A', 'B', 'C', 'D'; 1, 2, 3, 4; 5, 6, 7, 8; 9, 1, 2, 3};
cellB = {'C', 'A', 'D'; 1, 2, 3; 4, 5, 6; 7, 8, 9};
%positions of elements of row 1 from cellB which are common to elements of row 1 from cellA
[~,y]=ismember(cellA(1,:),cellB(1,:))
z = any(y==0);
if z
%Concatenate empty spaces according to the class of elements with cellB
%only there is a missing common element (in this case 'B')
cellB = [cellfun(@(x) x([]), cellB(:,1), 'uni', 0) cellB];
end
%Final output
cellC = cellB(:,y+z)
5 commentaires
Plus de réponses (1)
Jon
le 27 Juin 2023
cellA = {'A', 'B', 'C', 'D'; 1, 2, 3, 4; 5, 6, 7, 8; 9, 1, 2, 3}
cellB = {'C', 'A', 'D'; 1, 2, 3; 4, 5, 6; 7, 8, 9}
[lia,lib] = ismember(cellA(1,:),cellB(1,:))
cellBFinal = cell(size(cellA,2),size(cellB,1))
cellBFinal(:,lia) = cellB(:,lib(lia))
2 commentaires
Jon
le 27 Juin 2023
@Liam if it is important to you to have all the elements of the first row as char, then @Dyuman Joshi's somewhat more elaborate construction of the empty cell array will be needed. Otherwise can just initialize with all elements as empty doubles.
Voir également
Catégories
En savoir plus sur Shifting and Sorting Matrices dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!