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extracting columns from multiple cell arrays consist of table data

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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?

Accepted Answer

Peter Perkins
Peter Perkins on 30 Jul 2021
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.

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