Multiply each column of cell array by column vector

I have a 10x1 cell of separate events with each array having a size 384(time) x 5328(pixel). I want to multiply each column in each cell array by a column vector (C = 384x1). I have tried this code but it's not giving me the correct answer.

A = cell(size(B));

for jj = 1:10
  A{jj,1} = B{jj,1},[],1 .* C; 
end

Thanks

[Stephen23]

related to this question:

http://www.mathworks.com/matlabcentral/answers/250895-average-each-element-of-cell-array

Answer 1

[Stephen23]

As per your previous question you would actually be better off keeping your data in a simple numeric array rather than a cell array, so the first thing we will do is to convert it to a numeric array. The solution is then trivial using bsxfun:

>> X = {[1,2,3;4,5,6],[0,2,4;6,8,10]};
>> Y = cat(3,X{:})
Y(:,:,1) =
   1   2   3
   4   5   6
Y(:,:,2) =
    0    2    4
    6    8   10
>> C = [2;5]
C =
   2
   5
>> bsxfun(@times,C,Y)
ans(:,:,1) =
    2    4    6
   20   25   30
ans(:,:,2) =
    0    4    8
   30   40   50

This uses efficient vectorized code:

http://www.mathworks.com/help/matlab/matlab_prog/vectorization.html

[Carmel Howe]

thanks again

Answer 2

[Andrei Bobrov]

A = cell(size(B));
for jj = 1:10
    A{jj} = bsxfun(@times,B{jj},C); 
end