Use function inside a loop that gives the function's output multiple times - How to avoid overwriting output?

Hello everyone,

I am using a function that i have wrtitten inside a for loop..

i.e. for i=1:100

S=function_example(S,etc)

end

The output of one step is input for the function in the next step and so on...

I know that i can use indexing and an array S to store everything there (e.g S(i+1), S(i))... However I am looking for a more sophisticated way!!

Is there one ?? I need these looped function outputs for plotting my results...

Answer 1

[Yongjian Feng]

If you want to plot it, you need the array, right? What else do you have in mind then?

[Dimitris K]

Thanks a lot for your response Yongjian!

I was thinking if there is something where i could avoid indexing??

[Yongjian Feng]

If you just want to avoid indexing, then something like this:

anArray = [];
S = 0; % Need to initialize S
for i=1:100
    S=function_example(S,etc);
    anArray(end+1) = S;
end

[Stephen23]

"If you just want to avoid indexing, then something like this"

will be less efficient and just as complex as indexing.

[Dimitris K]

@Yongjian Feng, @Stephen Cobeldick

Thanks a lot for your response. I will probably use an array eventually. I was trying to avoid using all the i+1 etc cause sometimes it can be confusing for someone that reads my code to understand but i will probably stick to it as it is the only way to go.

[Stephen23]

" I was trying to avoid using all the i+1 etc cause sometimes it can be confusing for someone that reads my code"

Indexing is a basic MATLAB technique for accessing data in arrays.

You can assume that in general someone reading MATLAB code will not be confused by a simple i+1 index.