[Coin-ipopt] How to guilde the search in IPOPT

[Dahai Xu]

Andreas,

Thanks for your reply. I will clarify some of my last questions.

>> 3) How can I specify "control" variables in AMPL for IPOPT given that I
>> don't know how AMPL names these "control" variables?
>
> Sorry, I don't understand what you mean by control variables.

They are also called "independent" variables. As you posted before in the
list " the parameter ISELBAS (see the
README.IPOPT file) determines how the dependent and independent variables
are to be chosen.  In particular, you can list the numbers of the
(in)dependent variables in a file, or choose the first variables as the
(in)dependent ones."

Can we specify those "independent" variables and just set initial values for 
these "independent" variables (as the start point) in AMPL?

Thanks.

Yours sincerely
Dahai Xu