question about the 'stuct' of matlab?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Why the second one gives rise to empty struct?
s.a=1; s.b=2; s.c={}
s =
a: 1
b: 2
c: {}
s = struct('a',1,'b',2,'c',{})
s =
0x0 struct array with fields:
a
b
c
0 commentaires
Réponse acceptée
per isakson
le 24 Nov 2014
Modifié(e) : per isakson
le 24 Nov 2014
That's the way the function struct is designed to work. See struct, Create structure array "[...]If value is an empty cell array {}, then s is an empty (0-by-0) structure."
4 commentaires
Guillaume
le 24 Nov 2014
Modifié(e) : Guillaume
le 24 Nov 2014
If you do want to assign an empty cell array to a field of a structure using the struct function, you need to wrap that empty cell array into a cell array:
s = struct('a', 1, 'b', 2, 'c', {{}})
s =
a: 1
b: 2
c: {}
For that matter, even if the cell array is not empty you still need to wrap it to assign it to a scalar structure, otherwise the elements of the cell arrays are just distributed over an array of structs.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Structures 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!