Question regarding the GA optimization

Hi,I have a question regarding the GA optimizationquestion.I have two constraints.The limits of my first constraint is user defined.The limits of second constraint are the outputs from the first constraint.Can we have such possibility in GA

[Walter Roberson]

What does it mean for a constraint to have an output?

[Aravind K]

My first constarint is a function(let us consider as f1) which executes for the some values of the integer variables and returns the output which is verified with the respective defined limits.The executed function,f1, also calcuates the limits for the two continuous varaiable,which are to be utilized in the objective function for cost minimization.i hope this is clear

[Walter Roberson]

Nonlinear constraint functions do not return outputs which are verified with respective defined limits. Nonlinear constraint functions return a two (or four) values that are compared to <= 0 for the nonlinear inequalities, and are compared == 0 for the nonlinear equalities.

It is not possible for a nonlinear constraint function to modify the ub / lb criteria dynamically: they can only reply talking about whether the current trial values satisfy the constraints.

Answer 1

[Alan Weiss]

You are free to use nonlinear inequality constraints along with mixed-integer programming in ga.

Alan Weiss

MATLAB mathematical toolbox documentation