Multiply cell doubles with a matrix

I have a cell array A which has 1*5 cell, each cell has 12*1 doubles.

How multiply those 12*1 doubles with a MATRIX call B with 12*500 ?

Thank you

Answer 1

[Andrei Bobrov]

out = bsxfun(@times,permute(cell2mat(A),[1,3,2]),B); % out - 3D double array

or

out = cellfun(@(x)bsxfun(@times,x,B),A,'un',0); % here  out - cell array (1 x 5)

[Mori]

Error using cell2mat (line 52) CELL2MAT does not support cell arrays containing cell arrays or objects.

or

Error using bsxfun Operands must be numeric arrays.

Error in @(x)bsxfun(@times,x,res2)

[Andrei Bobrov]

Attach your cell array A.

You wrote: "I have a cell array A which has 1*5 cell, each cell has 12*1 doubles"

Small model of your "A" (let A -- cell array [1x3] each cell double [4x1]):

A = {(1:4)', (5:8)', (10:13)'};

Let B - double array [4x7]:

B = reshape(1:28,4,[]);

Then we have:

>> A = {(1:4)', (5:8)', (10:13)'};
>> B = reshape(1:28,4,[]);
>> out = bsxfun(@times,permute(cell2mat(A),[1,3,2]),B)
out =

ans(:,:,1) =

       1     5     9    13    17    21    25
       4    12    20    28    36    44    52
       9    21    33    45    57    69    81
      16    32    48    64    80    96   112

ans(:,:,2) =

       5    25    45    65    85   105   125
      12    36    60    84   108   132   156
      21    49    77   105   133   161   189
      32    64    96   128   160   192   224

ans(:,:,3) =

      10    50    90   130   170   210   250
      22    66   110   154   198   242   286
      36    84   132   180   228   276   324
      52   104   156   208   260   312   364

>>

[Mori]

Here they are

[Mori]

or both here

[Mori]

Oh I see my bad, It has actually 1*5 cell and each cell 1*12 cell and each cell has 1 double. Thanks for the example, I see where it was my mistake.

[Andrei Bobrov]

for your data (MatFiles.mat):

A1 = cellfun(@(x)[x{:}]',A,'un',0);
out = bsxfun(@times,permute(cell2mat(A1),[1,3,2]),B); % out - 3D double array

or

out = cellfun(@(x)bsxfun(@times,x,B),A1,'un',0); % here  out - cell array (1 x 5)

[Mori]

ok great, it works. I relay appreciate.