how to convert column cell to row cell?

Hi,

For example I have a 3x1 cell matrix like this. {[1,2,3] [4,5,6] [7,8,9]}; where every element is a 1x3 matrix.

I want to convert the row cells to 3x1 column cells like this {[1;2;3] [4;5;6] [7;8;9]};

How do I do this ? Thank you.

[jaweria kainat]

suppose i have 2 columns.how i can convert them into rows?

Answer 1

[Jan]

Or a loop:

for k = 1:numel(C)
  C{k} = C{k}.';
end

[EDITED] Accroding to your comment:

M = [1 2 3;  4 5 6;  7 8 9];
C = mat2cell(M.', 3, [1,1,1]).';

{[1;2;3]; 
 [4;5;6];
 [7;8;9]}

Or again with a simple loop:

C = cell(3, 1);
for k = 1:3
  C{k} = M(k, :).';
end

[sumana]

Thank you, the loop worked very well for me.

Answer 2

[Guillaume]

 cellfun(@transpose, yourcellarray, 'UniformOutput', false)

[sumana]

Thank you,

I got this error with both the methods,

Error using .' Transpose on ND array is not defined. Error in call_load (line 23) F=cellfun(@transpose, F, 'UniformOutput', false);

My array looks like this. I want to replace the , with ;.

[Guillaume]

Clearly, from the error message, at least one of the element of the cell array is not a vector and has at least three dimensions. To find which one(s):

find(~cellfun(@ismatrix, yourcellarray))

[sumana]

Thank you,

I ran that, and it returned all of the elements. How do I fix this ?

[sumana]

Can you make a normal matrix like

[1 2 3

4 5 6

7 8 9]

to a cell matrix like this

{[1;2;3]

[4;5;6]

[7;8;9]} ?

[Guillaume]

" have a 3x1 cell matrix like this. {[1,2,3] [4,5,6] [7,8,9]}" and "I ran that, and it returned all of the elements". One of these two statements directly contradict the other:

>>c = {[1,2,3] [4,5,6] [7,8,9]};
>>find(~cellfun(@ismatrix, c))
ans = 
   1x0 empty double row vector

If the arrays in your cell arrays have more than two dimensions, there's no way to transpose them since transposition is only defined for 2D matrices. If what you want to do is just swap 1st and 2nd dimension, leaving the others untouced:

cellfun(@(m) permute(m, [2 1 3:ndims(m)]), yourcellarray, 'UniformOutput', false)

"Can you make a normal matrix [...] to a cell matrix" There's no such thing as a cell matrix. To produce the cell array in your example:

m = [1 2 3; 4 5 6; 7 8 9];
c = num2cell(m.', 2).'

[sumana]

Thank you for explaining the dimensions. I guess my matrix had more than two dimensions.