How to put a sequence of text values in one function?

For example,

I have those data

set{1} = [1]
set{2} = [6,7,8]
set{3}= [10,11,12 ]
.............
set{20} = [79,80,81]

and created text value for the next

set_names = 'set{1}'
for a = 2:20
k  = sprintf(',set{%d}', a);
set_names = horzcat(set_names,k)
end

Ultimatiely, I want sentence down below works

Answer = combvec(set_names)

which should be identical to this

Answer = combvec(set{1},set{2},set{3},set{4},set{5},set{6},set{7},set{8},set{9},set{10},set{11},set{12},set{13},set{14},set{15},set{16},set{17},set{18},set{19},set{20})

I want to know how to insert saved values(as text form) in function. Not only for this problem, but for other uses.

Answer 1

[Voss]

There is no need to use "text form". Simply pass the values stored in the cell array set (which I'll call C to avoid confusion with the built-in MATLAB function set) to the function combvec as inputs. Since they are in a cell array, it's easy to pass them as a comma-separated list into combvec (or whatever function you want).

C{1} = 1;
C{2} = [6,7,8];
C{3} = [10,11,12];
C{4} = [79,80,81];

result = combvec(C{:}) % comma-separated list cell array expansion (easy)

result = 4×27

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 10 10 10 11 11 11 12 12 12 10 10 10 11 11 11 12 12 12 10 10 10 11 11 11 12 12 12 79 79 79 79 79 79 79 79 79 80 80 80 80 80 80 80 80 80 81 81 81 81 81 81 81 81 81

other_result = combvec(C{1},C{2},C{3},C{4}) % explicitly referencing each element of C (cumbersome and not general)

other_result = 4×27

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 6 7 8 10 10 10 11 11 11 12 12 12 10 10 10 11 11 11 12 12 12 10 10 10 11 11 11 12 12 12 79 79 79 79 79 79 79 79 79 80 80 80 80 80 80 80 80 80 81 81 81 81 81 81 81 81 81

isequal(result,other_result) % the result is the same

ans = logical
   1

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

[Stephen23]

I accepted this as it answers the question (with a much better approach than the OP was attempting).

[Voss]

Appreciated!