how to generate N times many of line code 'for loop'?

Hello, i need some guidance for this type of problem. here's the detail:

as we can see in code line; i have three types of force in the shape of matrix, there are:

a. Increase Loop System (first and second force loop system)

b. Decrease Loop System (first and second force loop system)

there are 2 force loop systems

small notes: input is manually write down in excel.

For first loop; cosist of:

A. Force Loop Increase

1. matxfl_inc1 = empty matrix for put the value [ zeros(max(big_dof),1)]
2. td_f1inc = search the 'length', for looping, input from excel
3. fdofl_1inc = for putting excatly the force position to
4. floop_1inc = forces
5. matxfl_inc1 = put all forces into here
6. afl_inc1= to describe simply, it's almost same for matxfl_inc1, but we only take some of matxfl_inc1, [matxfl_inc1(a_dof,1)]

b. Force Loop Decrease (more/less is same from above, but different name and different place of excel to get called)

1. matxfl_dec1 = empty matrix for put the value [ zeros(max(big_dof),1)]
2. td_f1dec = search the 'length' for looping, input from excel
3. fdofl_1dec = for putting excatly the force position to
4. floop_1dec = forces
5. matxfl_dec1 = put all forces into here
6. afl_dec1= to describe simply, it's almost same for matxfl_inc1, but we only take some of matxfl_inc1, [matxfl_dec1(a_dof,1)]

For Henceforth of loop, it is basically the same, but with different name (matxfl_inc2, td_f2inc, ..., matxfl_dec2, td_f2dec, ... , matxfl_inc3, and so on) and also more/less is same from above, but different name and different place of excel to get called)

for input is called from excel (in my code is data2, at sheet 2), with details below

• first column (assume at A3 like my input in excel) for how much looping of variety, ex: in need 7 varieties, so i want to generate 7 of both increase and decrease force loop system
• from B3 to K3 ( 2 to 11) in excel is for first loop;
• from L3 to U3 (12 to 21) in excel is for second loop

for details for code we can see the line code below

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% First Force Loop System
% Loop Increase Forces Placement
matxfl_inc1	= zeros(max(big_dof),1);       %empty matx for added looping force
td_f1inc = length(rmmissing((data2(:,2))));
for u=1:td_f1inc
    fdofl_1inc = data2(u,2);               %fdof_l= force loop dofs being read
    floop_1inc = data2(u,3);               %force_loop= added forces for loop
    matxfl_inc1(fdofl_1inc,1) = matxfl_inc1(fdofl_1inc,1) + floop_1inc;
end
afl_inc1=matxfl_inc1(a_dof,1);             %defined added loop force ...
                                           %at active dofs

% Loop Decrease Force Placements
matxfl_dec1	= zeros(max(big_dof),1);       %empty matx for added looping force
td_f1dec = length(rmmissing((data2(:,4))));
for u=1:td_f1dec
    fdofl_1dec = data2(u,4);               %fdof_l= force loop dofs being read
    floop_1dec = data2(u,5);               %force_loop= added forces for loop
    matxfl_dec1(fdofl_1dec,1) = matxfl_dec1(fdofl_1dec,1) + floop_1dec;
end
afl_dec1=matxfl_dec1(a_dof,1);             %defined added loop force...
                                           %at active dofs
                                           
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Second Force Loop System
% Loop Increase Forces Placement
matxfl_inc2	= zeros(max(big_dof),1);       %empty matx for added looping force
td_f2inc = length(rmmissing((data2(:,12))));
for u=1:td_f2inc
    fdofl_2inc = data2(u,12);             %fdof_l= force loop dofs being read
    floop_2inc = data2(u,13);             %force_loop= added forces for loop
    matxfl_inc2(fdofl_2inc,1) = matxfl_inc2(fdofl_2inc,1) + floop_2inc;
end
afl_inc2=matxfl_inc2(a_dof,1);            %defined added loop force ...
                                          %at active dofs

% Loop Decrease Force Placements
matxfl_dec2	= zeros(max(big_dof),1);      %empty matx for added looping force
td_f2dec = length(rmmissing((data2(:,14))));
for u=1:td_f2dec
    fdofl_2dec = data2(u,14);             %fdof_l= force loop dofs being read
    floop_2dec    = data2(u,15);          %force_loop= added forces for loop
    matxfl_dec2(fdofl_2dec,1) = matxfl_dec2(fdofl_2dec,1) + floop_2dec;
end
afl_dec2=matxfl_dec2(a_dof,1);            %defined added loop force...
                                          %at active dofs

what i have to create is N-Loop System that consists of N-times Increase Loop System, and N-times Decrease Loop System. assume that i want to have 7 varies of Loop System (Inc and Dec), so i have to generate 7 for each of them. dont forget that each N-Loop System have a different input. ex: ' fdofl_1dec = data2(u,4); ' and ' fdofl_2dec = data2(u,14) ' . data2(u,1) is for knowing how my force variety i want to do ( N, example N=7)

notes: i create this with input from excel with some benefits. if i want my first loop system have 50 forces of increase and decrease, i just write it in column, so to make N-Loop system write sidewise is a must

full code you can see at the attachments

thank, much love.

[Jan]

You explain a lot of details, but what exactly is your question?

"how to generate N times many of line code 'for loop'?" - This is done by another loop. Use arrays instead of a set of different variables as input and output.

[M Adli Hawariyan]

Hello Jan,

I've selfstudy matlab and never seen how to generate function with different name by loop with each function is in shape of (:, 1) most of them, could you give me some example? Like I have 2 force loop system above, but I need 1000 force loop system, how to do it? so you for looping the 'for loop'??

[Jan]

@M Adli Hawariyan: I do not understand, what you are asking for. You provide too many details to ask a clear question. I cannot imagine, what "generate function with different name by loop with each function is in shape of (:, 1) most of them" means.

"I have 2 force loop system above, but I need 1000 force loop system": This is trivial:

for k = 1:500
    data = dataForAllLoops{k};
    ... Your code for 2 force loops
end

[M Adli Hawariyan]

Hello jan, as you can see all of these matrices in array form, lets say i need 1000 loops of this

• matxfl_inc1 = empty matrix for put the value [ zeros(max(big_dof),1)]
• td_f1inc = search the 'length', for looping, input from excel
• fdofl_1inc = for putting excatly the force position to
• floop_1inc = forces
• matxfl_inc1 = put all forces into here
• afl_inc1
• matxfl_dec1 = empty matrix for put the value [ zeros(max(big_dof),1)]
• td_f1dec = search the 'length' for looping, input from excel
• fdofl_1dec = for putting excatly the force position to
• floop_1dec = forces
• matxfl_dec1 = put all forces into here
• afl_dec1= to describe simply, it's almost same for matxfl_inc1, but we only take some of matxfl_inc1, [matxfl_dec1(a_dof,1)]

so if i want to have 1000 loops, i have to make value for each of them 1000 times with 1000 different names. lets take matxfl_inc1 as example, so i need matxfl_inc1, matxfl_inc2, matxfl_inc3, ...,matxfl_inc1000 which each of them in array (:,1) form.

would you like to give some guidance about this?

EDIT: thanks Jan, i manage to generate matx_inc for all data in shape of array form (big_dof,N)

[Jan]

No, do not create variables by hiding an index in their names, but use arrays:

matxfl_inc1           % Bad
matxfl_inc{1}         % Good
matxfl_inc(:, :, 1);  % Good, or how many dimensions you need

If all arrays have the same size, use a mutli-dimensional array, a cell array otherwise.

complicated methods to hide an index in the name of a variable demands for creating even more complicated methods to access them later on. Using indices is trivial and easy to expand.