How to define discrete variables in GA (genetic algorithm)

Hi,

I need to optimize a function has four variables by GA tool (genetic algorithm).

Two variables are continuous like: x1=[1 5], x2=[22 34]

Two variables are discrete like:

x3=[1 1.5 2 2.24 3 3.35 3.5 4 4.5 5],

x4=[17 19 20 21 22 25 27 30 33]

How to define discrete variables in GA (genetic algorithm).

I use GA tool.

Answer 1

[Stephan]

https://de.mathworks.com/matlabcentral/answers/401059-setup-discrete-values-for-decision-variables-in-optimization-problems

[ly]

I used R2012b and can't find the files :

cantileverVolumeWithDisc.m, cantileverConstraintsWithDisc.m and cantileverMapVariables.m

in this link:

https://www.mathworks.com/help/gads/solving-a-mixed-integer-engineering-design-problem-using-the-genetic-algorithm.html