How to create cell-array in MATLAB and initialize all elements to the same object?

arrays matlab initialization cell-array

s5s · Nov 19, 2011 · Viewed 19.8k times · Source

I have a matrix (call it X) that is initialized to say zero(3).

I want to change the code so that X is a cell array of size (say) (3,1) and initialize each element to zero(3).

I can do it with a loop but is there a better way?

X = cell(3,1);
for ii=1:numel(X)
    X{ii} = zeros(3);
end

Answer

You can do this with deal().

>> [X{1:3, 1}] = deal(zeros(3))

X = 

    [3x3 double]
    [3x3 double]
    [3x3 double]