Please expalin the error

I am using the following code in a simulation program

x= lsqlin(C,d,A,b,Aeq,beq,lb,ub,x0,options)

When I use lb = [0.01 0.01] ' and ub = [0.98 0.98] ' I get the results I need.

However, when I use lb = [0.00001 0.00001] ' and ub = [0.99998 0.99998] ', the results I get are way off from the results I got earlier.

I there something wrong?

Thanks

[Walter Roberson]

please read the guide to tags and retag this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

Answer 1

[Matt J]

What you describe doesn't suggest anything is wrong, per se. You are minimizing over a larger region, so obviously the minimizer can change.

[Matt J]

It might also be the case that there are non-unique solutions. Changing the constraints can change the path that the algorithm follows downhill so that it ends up at a different solution.

[dav]

Thanks. Do you have any suggestions?

[Matt J]

As I said, I don't think that anything is wrong.