How can I change struct name in a loop

Hi everybody,

I have a struct name: Individual1.length I want the user to enter a number and the script will change accordingly, for example:

interface: X = input('which individual? ');

user: X = 3;

interface: individual3.length

Hope it is clear enough,

Thanks,

Ziv

[Stephen23]

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

Answer 1

[Ameer Hamza]

Although there is a MATLAB function to do this, but it is a very bad practice to name your variables like this. It will make your code error prone and hard to debug. Therefore I am going to suggest the correct way to solve the problem. You should create a struct array and store the input number as a field of the struct. For example

for ii=1:10
  X = input('which individual? ');
  s(i).individualNumber = X;
  s(i).length = ...;
end

It will take 10 inputs from user and store them in struct array.

[Stephen23]

+1 For more information on structure arrays see:

https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html

[Ziv Kassner]

Thank you very much.