extracting columns from multiple cell arrays consist of table data

for j=1:2
tCOD{j,:}=readtable(full_file_name(j,:),'FileType','text', 'headerlines',end_of_header_line(j),'readvariablenames',0);  % 2x1 cell
end
data_1=tCOD{1,:} ; data_1=data_1{:,3:8};  % nx6 table
data_2=tCOD{2,:} ; data_2=data_2{:,3:8};  % nx6 table

How can I merge data_1 and data_2 as a single variable within the above loop?

Answer 1

[Peter Perkins]

If you've read two "similar" tables into a 2x1 cell array, best ting to do is to vertvat them outside the loop:

>> C = {array2table(rand(4,3)) array2table(rand(5,3))}
C =
  1×2 cell array
    {4×3 table}    {5×3 table}
>> t = vertcat(C{:})
t =
  9×3 table
     Var1       Var2       Var3  
    _______    _______    _______
    0.34039     0.2551    0.95929
    0.58527    0.50596    0.54722
    0.22381    0.69908    0.13862
    0.75127     0.8909    0.14929
    0.25751    0.92926    0.47329
    0.84072    0.34998    0.35166
    0.25428     0.1966    0.83083
    0.81428    0.25108    0.58526
    0.24352    0.61604    0.54972    

You can vertcat incrementally inside the loop, but this is faster.

This

    data_2=data_2{:,3:8};  % nx6 table

doesn't create a table, it extracts data from a table. You may not be intending to do that.