How to initialize number of iteration?

Hello!

i ran my program code for 100 iterations in order to check result as function of variable A using this command :

A_100_iteration=[];
Result_100_iteration =[];
for n=1:100
    %my program
    A_100_iteration=[A_100_iteration,A] ; %first variable
    Result_100_iteration=[Result_100_iteration,Result] ; %
end

Now i have t to change a new variable in my program denoted "B" whish is a vector [1*3600] ,but just the first element B(1) which is varied from [0 to 1000] as follow [0,20,40,60,80,100,..].

the first element B(1) is already initialized in my code, but i'm asking if it is possible to do a loop for in order to change each time.

for example ,

do 100 iteration,

B(1)=0,

do 100 iteration,

B(1)=20,

do 100 iteration,

B(1)=40

...

i'm looking for an easy method to just display the 100 iterations for each new value of B(1).

I hope that all is clear,

Thanks in advance

Answer 1

[Torsten]

A_100_iteration = cell(51,1);
Result_100_iteration = cell(51,1);
for ib = 1:51
    B(1) = (ib-1)*20;
    for n = 1:100
        %my program,e.g.
        A = 1;
        Result = 1;
        A_100_iteration{ib}=[A_100_iteration{ib},A] ; %first variable
        Result_100_iteration{ib}=[Result_100_iteration{ib},Result] ; %
    end
end
A_100_iteration{3}
Result_100_iteration{3}

[Majid]

@Torsten it works thank you very much, but i'm wondering if should i the code that generate all vector B inside the first loop for ? or just the first element inside and the rest in the second loop for

[Torsten]

You said you know the vector B and only the first element is to be changed.

So set the vector B after the lines

A_100_iteration = cell(51,1);
Result_100_iteration = cell(51,1);

and only change its first element where it is done in the code.

[Majid]

@Torsten the elements of B are related to each others so i should put all code after first loop for , so can i see B also after 100 iterations in order to check if the code work or not?

or just the first element of B.

[Torsten]

As you asked, you want to change the first element of a fixed array B, do your 100 iterations, display the results of the 100 iterations, change the first element of your fixed array B, do your 100 iterations, display the results of your 100 iterations and so on.

That's what the code is for.

If you want to do something different, you should ask something different.

[Majid]

@Torsten i already said that B is a vector [1*3600], If I change the first element, the others will be changed automatically. That's why I'm asking where I should put my B-generation code. And for more check i want to see each iteration the vector B as well as A and result.

i really apreciate your effort, thank you very much!

[Torsten]

I know too little about the underlying problem and the way you try to solve it to answer your question.

[Majid]

@Torsten no problem, thank you very much for you answer!