[Coin-discuss] SBB getObjValue max problem

[Matthew Galati]

sounds good to me

thanks,
matt


>
>
>Matt,
>
>I have replaced the internal uses of getObjValue by getMinimizationObjValue
>and modified getObjValue - is that better?
>
>John
>
>
>                                                                           
>             Matthew Galati                                                
>             <magala at wnt.sas.c                                             
>             om>                                                        To 
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>             coin-discuss-admi         coin-discuss at www-124.southbury.usf. 
>             n at www-124.southbu         ibm.com                             
>             ry.usf.ibm.com                                             cc 
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>             06/18/2004 11:59                                              
>             AM                                                            
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>                                                                   Subject 
>             Please respond to         [Coin-discuss] SBB getObjValue max  
>               coin-discuss            problem                             
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>When solving a max problem with SBB and getting back the objective
>value, it looks to me like the signs are switched. I presume,
>internally,  that SBB flips the objective and solves it as a min - but
>it doesn't seem to switch back the final objective value.
>
>siBB->setObjSense(-1);
>SbbModel sbb(*siBB);
>sbb.branchAndBound();
>correctObj = -1 * sbb.getObjValue();
>
>Matthew
>
>--
>Matthew Galati -- Optimization Developer
>SAS Institute -- Analytical Solutions / Operations R & D
>Office R4112 O: 919-531-0332 F: 919-677-4444
>URL: http://sagan.ie.lehigh.edu/mgalati/
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-- 
Matthew Galati -- Optimization Developer
SAS Institute -- Analytical Solutions / Operations R & D
Office R4112 O: 919-531-0332 F: 919-677-4444
URL: http://sagan.ie.lehigh.edu/mgalati/