Optimizer - with non-optimized output variables

[Shahar Kovalsky]

Hi,

The optimizer object seems to fail (with a reshape error) if one of its output variables (u's) is not used in the optimization.

For example,

sdpvar x y a

op = optimizer(a*x>=0, x, sdpsettings('solver','+sedumi'), a, {x y});

res = op{1}

(in my real problem, the objective and constraints may change and therefore not contain some of the variables)

Is there a way to circumvent this?

(and just have op{1} return NaN for the not-optimized variables)

Thanks,

Shahar.

[Johan Löfberg]

Thank you for the bug report. I don't see any way to code around this at the moment beyond adding dummy constraints which won't be eliminated.

[Shahar Kovalsky]

Okay. Thanks.

Alternatively, is there a way (e.g., simple modification to optimizer) to update the assigned double values of all sdpvar objects that were optimized?

[Johan Löfberg]

I will fix this (sending you some quick fixes per mail)

[Shahar Kovalsky]

Thanks!