Hello Xypron, Very satisfied with the dual for constraints in MPL from your version * glpk-4.38-dot* and your table read/write contribution to GLPK, I have two questions though:
1) Why hasn't the recent version GLPK version 4.43 this MPL dual feature? I couldn't find anything about it in the MPL documentation. 2) Is it possible to write the dual itself or the results from operations on it to a table, and if so, could you please give an example as all my attempts fail? Best regards, Ivo van Baren Netherlands 2010/5/5 glpk xypron <[email protected]> > Hello Adam, > > > Is there a way to access the shadow prices (dual values) for the > > non-integer variables in a MIP problem with GLPK? > > dual values are only defined for LP problems. > > You can fix the integers of the MIP solution and > solve the remaining LP with glp_simplex() and > retrieve the duals of this LP. > > See as example function glp_mpl_postsolve() in > > http://glpk.dyndns.org/viewvc/svn/glpk/branches/glpk-4.38-dot/src/glpapi16.c?revision=1&view=markup > > Best regards > > Xypron > > > -- > GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! > Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 > > > _______________________________________________ > Help-glpk mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/help-glpk >
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