Associate an array to every element of a matrix

How I can associate an array to every element of a matrix?

For example, i have a 2x2 Matrix. Now Matrix(1,1) must be an array, is it possible? How can I declare such multidimensional array?

Thanks in advance!

Answer 1

[John D'Errico]

Is there a reason why you cannot simply use a 3-dimensional array?

Thus, if A has dimensions 2x2xn, then it can store n such 2x2 matrices. Access the k'th such matrix as

A(:,:,k)

Only if your individual arrays are not all the same size do you need to use a more complicated storage scheme such as a cell array. Admittedly, a cell array is trivial to use and create.

[Luiz Santos]

No, I could use a three dimensional array.

But, every element of the matrix must point to an array. I just don't know how to do it!

Given a matrix: M = [2 1; 3 4]; I need something like: M(1,1) = [1 2 3]; M(1,2) = [3 4 2]; And so on.

Thanks!

[Image Analyst]

John's suggestion is good, if all your vectors are the same length:

% Define initial 2-D array.
M = [2 1; 3 4]; 
% I need something like: M(1,1) = [1 2 3]; M(1,2) = [3 4 2]; 
% Add on two more layers.  Assumes all vectors to add have the same length.
M(end, end, 3) = 0
M(1,1,:) = [1 2 3]; 
M(1,2,:) = [3 4 2]; 
% Print to command window:
M
% To extract the first vector at M(1,1):
vector1 = squeeze(M(1, 1, :))

If they're not all the same length, you can use a cell array or a structure array.

[Luiz Santos]

They are all the same length, thanks!

Answer 2

[Azzi Abdelmalek]

Use cell array. For example

M={ [1 2 3] [1 2] [4 5;6 5] 'abc'  [  ] }