[Coin-symphony] dual solution

[Ted Ralphs]

Lutz,

It sounds like you trying to get a dual solution for an integer program 
that is analogous to the dual solution obtained when solving a linear 
program. SYMPHONY does not provide such dual information---in fact, a 
dual solution vector with the same properties as the one from linear 
programming may not exist in general. The question of how to get 
meaningful dual information for an IP and how to perform sensitivity 
analysis for IPs is one of my research areas, however, so I'd be happy 
to provide you with references off-line if you like.

Cheers,

Ted
-- 
Dr. Ted Ralphs
Assistant Professor
Industrial and Systems Engineering
Lehigh University
(610)758-4784
tkralphs at lehigh.edu
www.lehigh.edu/~tkr2