Cleaner way to write a series of similar sequences

Hi, I'm wondering if there is, in general, a cleaner way to write a series of repeating sequences, but that pull from different arrays. For example, I currently have the following:

A{x,y} = (sampleE(x,y)/sampleW(x,y))*100;
B{x,y} = (sampleF(x,y)/sampleW(x,y))*100;
C{x,y} = (sampleG(x,y)/sampleZ(x,y))*100;
D{x,y} = (sampleH(x,y)/sampleZ(x,y))*100;

All of the variables (sampleE, sampleW, etc.) are held in different arrays. Just curious if there is a neater way to write this than having them repeat.

[Stephen23]

"All of the variables (sampleE, sampleW, etc.) are held in different arrays. Just curious if there is a neater way to write this than having them repeat."

Yes, there is a neat way: simply put your data into one array and use indexing! Indexing is neat, simple, very efficient, and easy to debug.

In contrast what you are trying to do, which involves dynamically accessing variable names, is one way that beginners force themselves into writing slow, complex, buggy code that is hard to debug. Read this to know more:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 1

[OCDER]

Nope, that style of coding is going to end up with repeated codes like the one you have shown. This should be a good read for you:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Essentially, naming variables like Var1, Var2, Var3, A, B, C, D, etc should be avoided. Use cell arrays or structures so that you can use the power of arrayfun, cellfun, for loops, while loops, and parfor loops.

Example:

Instead of Var1, Var2, etc, use Var{1}, Var{2}, ...
for j = 1:length(Var)
    Var{j} = j + 1 + ...;
end

[Jasmine Karim]

Ah ok will take a look, thanks!