Combine matrixes with like same values
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Conner Carriere
le 11 Nov 2022
Commenté : Conner Carriere
le 21 Nov 2022
I know this has been asked before, but im just not sure how to approach it.
I have a cell that looks
bbox
[0,241,637,168]
[204,181,382,286]
[56,314,185,243]
[0,59,574,506]
[8,58,230,546]
and another "key" cell that looks like this
1
1
2
2
3
I also have a cell that called "class"
5
11
12
9
10
I need an output like this
row bbox class
1 [0,241,637,168; 204,181,382,286] [5;11]
2 [56,314,185,243; 0,59,574,506] [12;9]
3 [8,58,230,546] [10]
Any info would help, I am sure that it uses either the unique() or accumarray() function
0 commentaires
Réponse acceptée
Jan
le 11 Nov 2022
Modifié(e) : Jan
le 11 Nov 2022
bbox = {[0,241,637,168]; ...
[204,181,382,286]; ...
[56,314,185,243]; ...
[0,59,574,506]; ...
[8,58,230,546]};
key = [1, 1, 2, 2, 3];
result = splitapply(@(c) {cat(1, c{:})}, bbox, key(:))
Another option is a simple loop:
ukey = unique(key);
result = cell(numel(ukey), 1);
for k = 1:numel(ukey)
result{k} = cat(1, bbox{key == ukey(k)});
end
result
5 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Feature Detection and Extraction 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!