Saving intermediate population during GA

I need some help to find out a way to store the information related to every generation of the GA

(both the variable and the fitness values)

It could be both on an external file ( e.g. in a .txt file) or in a struct array.

Which one do you suggest? And how can I do it?

Thanks in advance

Answer 1

[Alan Weiss]

You can save whatever you like using an output function. For examples of output functions (using a different syntax, be careful, GA uses its own), see a MATLAB example, and an Optimization Toolbox example.

Alan Weiss

MATLAB mathematical toolbox documentation

[andrea84]

Reviewing the example gave me a clearer understanding of the problem.

Thank you!

[yusra asad]

It seems that the example gives only the values of the variables, I need the corresponding fval for each indiviual, did you get it?

Answer 2

[Daniel Frisch]

You can use my function

outputFcn_global

to store all intermediate results in a global variable, and easily inspect them later on.

https://de.mathworks.com/matlabcentral/fileexchange/80831-outputfcn_global