Problem with Genetic Algorithm

I use Genetic Algorithm for optimization of 6 parameters and they limited between 0-100 with Lower and Upper bounds in constrains but in running time it's also setting a negetive number(out of that range)!Why it's occure?

Answer 1

[Alan Weiss]

It is possible that you aren't setting bounds on all components. See the documentation of bounds.

For example, your lower bounds should be zeros(6,1), and your upper bounds should be 100*ones(6,1).

Alan Weiss

MATLAB mathematical toolbox documentation