> The information in sensitivity analysis table in glpk seems to be > incorrect. > > For example: for the problem in sample.c file and in the manual > section 1.3.1 (page 14). >
[...] > However the correct range of the row r would be 200-> +inf not (120-> > 520). > > Do I miss something here? > The row r is non-active in the optimal solution reported (i.e. corresponding auxiliary variable is basic); in this case 'Activity range' is related to the objective function, not to the row itself. For example, 120 means that that r would take on the value 120 when its objective coefficient (which is normally zero) would go on its lower limit -1.66667 reported in the field 'Obj coef range'. For detailed explanations of the report structure please see Section 3.4 "Post-optimal analysis routines" in the glpk reference manual, pp.107-114. _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
