order a cell array by the dimension of its cells

Hi, I am looking for a simple and possibly clean way to sort the cells of a cell array by the length of the vector inside every cell. For instance I have this cell array:

    c = 
    [1x3 double]
    [1x4 double]
    [1x2 double]
    [1x3 double]

and i want to obtain this:

    c = 
    [1x2 double]
    [1x3 double]
    [1x3 double]
    [1x4 double]

As I said I was looking for something clean rather than fast, and I need working it just for array cells and not for matrix cells in general, thank you very much in advance.

Answer 1

[Cedric]

Here is one way:

Build test data:

 >> c = {randi(10,1,3), randi(10,1,4),randi(10,1,2),randi(10,1,3)}'
 c = 
    [1x3 double]
    [1x4 double]
    [1x2 double]
    [1x3 double]

Sort cells' content length, get indices of ordered lengths:

 >> [~,id] = sort( cellfun( @length, c ))
 id =
     3
     1
     4
     2

Use indices to sort original cell array:

 >> c = c(id)
 c = 
    [1x2 double]
    [1x3 double]
    [1x3 double]
    [1x4 double]

[simone clochiatti]

Thank you very much! was exatly what I was looking for.

[Cedric]

My pleasure.

[Sinan Islam]

@Cedric Wannaz Thank you!