Filling up a matrix

I have an array of 69 x 1 cells. Every cell contains a matrix of either 12 x 1 or 13 x 1. I want Matlab to make a matrix of 13 x 69 and filling up the empty spaces of the 12 x 1 matrices by adding zero's.

Is this possible?

Thanks for the help!

Answer 1

[James Tursa]

How about a simple loop:

result = zeros(13,69);
for k=1:69
    n = numel(mycellarray{k});
    result(1:n,k) = mycellarray{k};
end

[Royvg94]

The output of this is a matrix with only zero's. I need the results from all matrices in the array, and the matrices with only 12 rows, need to be filled to 13 by adding a zero.

Answer 2

[Walter Roberson]

first13 = @(V) V(1:13);
result = cell2mat( cellfun(@(V) first13([V;0]), YourCellArray, 'Uniform', 0) );

If the cells can be variable size all the way from empty to 13, then use

first13([V;zeros(13,1)])

[Royvg94]

I think this is what i need, the only problem is that the output is in 1 column, and i need it to be 13 x 69...

[Walter Roberson]

result = cell2mat( cellfun(@(V) first13([V;0]), YourCellArray, 'Uniform', 0).' );