# Help iteration for loop and tables vertcat

4 views (last 30 days)
Nina Perf on 27 May 2022
Edited: Nina Perf on 28 May 2022
Hi,
• I have a varible C which is a 45x2 double with the possible combinations of numbers, #, from 1 to 10 (meaning 10 birds).
• Per bird I have a table named tablevars#, where # are numbers from 1 to 10.
• I want to have inside the for cycle the total table that will change per combination (matches each row of C per iteration i).
tablevars1
tablevars2
...
w = [1:10];
p = 2;
C = nchoosek(w,p);
u = length(C);
for i = 1:u
total = vertcat(?);
...
end
Thank you!
Stephen23 on 27 May 2022

Stephen23 on 27 May 2022
Edited: Stephen23 on 27 May 2022
Using one cell array will be much simpler (and more efficient) than your approach of numbering the variable names:
w = 1:10; % removed superfluous square brackets
p = 2;
C = nchoosek(w,p)
C = 45×2
1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 2 3
tbl = { table(..), table(..), table(..) .. }; % cell is better than numbered variable names.
for k = 1:size(C,1)
idx = C(k,:);
out = vertcat(T{idx})
..
end

Walter Roberson on 27 May 2022
Don't do this. put the tables in a cell array and use cell indexing instead of dynamic variable names.

R2021a

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!