How to get the matrix with maximum(or minimum) number of elements

2 vues (au cours des 30 derniers jours)
Chamira Wickramasinghe
Chamira Wickramasinghe le 27 Fév 2016
Commenté : Stephen23 le 27 Fév 2016
Hi,
Suppose there are 3 matrixes A,B & C with sizes of [1 5],[1 8] and [1 9] respectively.
Is it possible to find the matrix with the maximum number of elements. Here it is C
This is the actual code I'm working on. Here I want to find that biggest matrix(y1 or y2). I know it can be done by typing length(y1) and length(y2) and choose the matrix with biggest one answer. But what I want to do is that I want to get it as an answer
load('chirp.mat');
y1 = transpose(y);
load('gong.mat');
y2 = transpose(y);
Thank you.

Réponses (2)

Stephen23
Stephen23 le 27 Fév 2016
Modifié(e) : Stephen23 le 27 Fév 2016
It is much easier to perform these kind of operations when all of the data are in one variable. So that is the first thing to do: lets put them all into one cell array (this is perhaps how they should have been saved anyway):
>> A = randi(9,1,5);
>> B = randi(9,1,8);
>> C = randi(9,1,9);
>> D = {A,B,C}; % put into a cell array
Now finding the array with the most elements is trivial:
>> N = cellfun(@numel,D)
N =
5 8 9
>> [~,X] = max(N); % its index
>> D{X} % extract that array
ans =
5 7 7 6 1 1 3 5 6
  2 commentaires
Chamira Wickramasinghe
Chamira Wickramasinghe le 27 Fév 2016
thank u :)
Stephen23
Stephen23 le 27 Fév 2016
My pleasure. You can also accept the answer the best resolves your question.

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John BG
John BG le 27 Fév 2016
try
max(max(size(y1),size(y2)))
If you find this answer of any help solving your question, please click on the thumbs-up link, thanks in advance
John
  1 commentaire
Chamira Wickramasinghe
Chamira Wickramasinghe le 27 Fév 2016
Sir,
Thank u very much for answer. But I'm afraid to say that it doesn't solve my problem. It returns the maximum value. What I want is to return what the biggest matrix is. In my code it should return 'y2'

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