Setting up an array which has a 4x1 matrix in each one of it's cells

Hi,

Would anyone be able to give me any help on how to set up a 10x10 array such that each cell within this array is a 4x1 matrix? I'm not sure if this is the correct terminology or if it's called something else. However my basic problem is that I'm calculating something within 2 loops (both with 10 cycles hence the 10x10) and want to record the result in an array/matrix for each case so that it may be stored. The value I want to store is a 4x1 matrix.

Thanks in advance,

Nick

[James Tursa]

This often doesn't make sense except in special circumstances (e.g., modifying each cell's data area in-place downstream in your code). If you are replacing each cell element downstream in your code with another 4x1 matrix, then this pre-allocation is just a waste of time. What are you doing with this cell array downstream in your code?

Answer 1

[Wayne King]

One way:

   X = cell(10,10);
   X = cellfun(@(x) zeros(4,1),X,'uni',0);

Now you see with

   cellplot(X)

that each cell is a 4x1 vector of zeros.

[Nick]

Excellent, thank you!!!

[Jos (10584)]

the used of cellfun is rather over the top here ...

[Nick]

Thanks for that, I've now changed my code to yours, Jos, thank you very much!

Answer 2

[Jan]

X    = cell(10,10);
X(:) = {zeros(4, 1)};

Answer 3

[Jos (10584)]

X = repmat({zeros(4,1)},10,10)