Why are the upper and lower bounds violated during iterations with the LSQNONLIN function from the Optimization Toolbox?

I am using lsqnonlin with the trust-region-reflective algorithm and the bounds are violated. Which is the problem?thank you!

Answer 1

[Alan Weiss]

Perhaps you didn't write your bounds as complete vector constraints. For example, if you have 15 decision variables and want a lower bound of 0 on each variable, then you have to specify

 lb = zeros(15,1);

not

 lb = 0;

Alan Weiss

MATLAB mathematical toolbox documentation

[Elena Katsagani]

yes! I did not notice that..thank you very much!!!