Help iteration for loop and tables vertcat

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]

Do NOT force meta-data (e.g. pseudo-indices) into variable names:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 1

[Stephen23]

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

See also: https://www.mathworks.com/matlabcentral/answers/1656435-tutorial-comma-separated-lists-and-how-to-use-them

Answer 2

[Walter Roberson]

Don't do this. put the tables in a cell array and use cell indexing instead of dynamic variable names.