How to populate a cell in a cell array with an array

I have tried to find a suitable solution on the pages but cant seem to find any. I have a cell array of m x n dimensions and I have arrays being created of 2x1 dimensions and would like to insert each array into a different cell of the cell array.

a=cell(4x5)
      for i = 1:5
          for j = 1:4
              b = array which was calculated as 2x1 array
              a(j,i) = b
          end
      end

I can't seem to get this right. I keep getting the following error:

Assignment has more non-singleton rhs dimensions than non-singleton subscripts

Help will be appreciated.

Answer 1

[Rik]

The reason for this error is the way cells work: you can access the contents with curly brackets, or the cell as a container with round brackets. Also, using i or j can cause problems when they might be interpreted as the imaginary unit.

a=cell(4,5)
for ind2 = 1:size(a,2)
    for ind1 = 1:size(a,1)
        b = array which was calculated as 2x1 array
        a{ind1,ind2} = b
    end
end