MATLAB: Sort cell elements according to one column

Question

Hi all,

I have a cell array like this:

K>> err
err =
  3×6 cell array
    [1]    [  1]    []    []    [31×31 double]    []
    [2]    [  2]    []    []    [31×31 double]    []
    [3]    [1.5]    []    []    [31×31 double]    []

I'd like to sort it in ascending order of the 2nd column, in an order of 1, 1.5, 2, so it becomes

K>> err
err =
  3×6 cell array
    [1]    [  1]    []    []    [31×31 double]    []
    [3]    [1.5]    []    []    [31×31 double]    []
    [2]    [  2]    []    []    [31×31 double]    []

How can I do it? Thanks!

Answer 1

[~, order] = sort(cell2mat(err(:, 2)));
sortederr = err(order, :)

edit: actually a lot simpler since sortrows works with cell arrays:

sortederr =  sortrows(err, 2)