How to convert cell to matrix

I have a cell which is given by A= 1x13cell. I want to extract the contents of the cell into the form of a matrix of size (13 x number of points each cell containd) is this possible? The number of points in each cell varies. Can you help me with this?

[Jos (10584)]

I suggest you give a small example. For instance, if

C = {[1 2],[11 12 13]} % a cell array

how would you like the final matrix M to look like? Something like

1   2  NaN
11  12   13

?

[Ede gerlderlands]

yes, that's what I need

Answer 1

[Jan]

N = cellfun('length', C);
M = numel(C);
R = NaN(M, N);
for k = 1:M
  R(1:N(k)) = C{k};  % Perhaps: reshape(C{k}, 1, [])
end

[Ede gerlderlands]

Thank you for yor reply. But this gives me the whole nubers that are found in the cell in the decending order following rows. What I really want is the numbers per cell . That is 13 rows and what is found in them . Thank you

Answer 2

[David (degtusmc)]

Look up cell2mat. The link for the documentation is below. I hope this helps

http://www.mathworks.com/help/matlab/ref/cell2mat.html

[Ede gerlderlands]

I tried but didn't help me

[Evan]

This will only work for cells arrays containing matrices of constant size in each array.

[David (degtusmc)]

That is true. I did not think about that. Thank you Evan.

Answer 3

[Jos (10584)]

Here is a suggestion

C = {[1 2 ;3 4],[11 12 13].',100:106} % a cell array

% make sure all elements are column vectors 
C2 = cellfun(@(x) reshape(x,[],1), C,'un',0) ; 

M = padcat(C2{:})

PADCAT can be found here: http://www.mathworks.com/matlabcentral/fileexchange/22909-padcat

[Tehmina Kakar]

Thank you so much @Jos. It works for me.