Nested for loop from variables

Hello

I have a following code:

L1 = {'150um', '250um', '350um'};
W1 = {'250um'};
W2 = {'30um'};

for aa = 1:length(L1)
    for bb = 1:length(W1)
        for cc = 1:length(W2)
            some task
        end
    end
end

At the moment i have 3 for loops for 3 variables (L1, W1, W3). This will change and can be any number of variables. So now how can i make the for loop adapt to that automatically?

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/602395-different-number-of-for-loops#answer_502861

Answer 1

[Ameer Hamza]

L1 = {'150um', '250um', '350um'};
W1 = {'250um'};
W2 = {'30um'};

C = {L1, W1, W2}; % pack all varaibles in a cell array
[C{:}] = ndgrid(C{:});
C = [C{:}]; 

for i = 1:size(C, 1) % just iterate over rows of C
    l = C{i, 1};
    w1 = C{i, 2};
    w2 = C{i, 2};
    % some task
end