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How to store values of iterations during a for loop?

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Yro
Yro on 16 May 2021
Answered: Madhav Thakker on 18 May 2021
I have the following problem, I have three for loops, and I need to store the number of iterations that correspond to the second for loop, to show its total during the execution of the main loop. For example:
% Initialization
for i = 1:npop % first loop / npop = 600
(something
end
% Iterations
for it = 1:iters % Main loop / iters = 100
(something)
for l = 1:nc % third loop / obj function evaluation / nc = 600
(something)
end
end
In the first loop npop = 600, in the second iters = 100 and in the third nc = 600. If anyone has experience what I am doing is a genetic algorithm in which I want to show the number of objective function evaluations.
Thanks in advance.
  1 Comment
Mathieu NOE
Mathieu NOE on 16 May 2021
hello
if you use for loops , that means you execute the loop until the last iteration index , so the total number of iterations of the second for loop is already known (as you specifiy it)
if you would use while lopps that's a different story

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Accepted Answer

Madhav Thakker
Madhav Thakker on 18 May 2021
Hi Yro,
Have a look at for loop documentation in MATLAB to know how it works.
Open this example in MATLAB command window to run and display values in each iteration.
openExample('matlab/ExecuteStatementsForSpecifiedValuesExample')
Hope this helps.

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