Variable Statistics
The OPTANO.Modeling Library can support the debugging and tuning of models by calculating additional variable statistics. The statistics provide information about the variables' status after the model is solved. They can be computed by accessing Model.VariableStatistics. The Variable Statistics can be written to disk, using ExtensionMethods.WriteCSV:
The following table shows an example output for the variable statistics. The underlying VariableCollection has two indices. The column 'RemovedInPreprocess' indicates, whether the variable was removed during the preprocessing phase of the solver. The computation of the set of removed variables can be activated in the ModelScope, by setting the property ComputeRemovedVariables to true. If the computation of the removed variable set is not supported by the solver, or if the property ComputeRemovedVariables is set to false, the column RemovedInPreprocess will contain the value "Unknown".
| VariableNameInModel | VariableLongName | LB | UB | SubjectivePrice | SolutionValue | RemovedInPreprocess | NumberOfTermsInRestrictions | Index0 | Index1 |
|---|---|---|---|---|---|---|---|---|---|
| v0_A | Orig_GARY_to_Dest_FRA | 0.00 | Infinity | 39.00 | 0.00 | True | 2 | GARY | FRA |
| v0_AQ | Orig_GARY_to_Dest_DET | 0.00 | Infinity | 14.00 | 0.00 | True | 2 | GARY | DET |
| v0_Ag | Orig_GARY_to_Dest_LAN | 0.00 | Infinity | 11.00 | 0.00 | True | 2 | GARY | LAN |
| v0_Aw | Orig_GARY_to_Dest_WIN | 0.00 | Infinity | 14.00 | 0.00 | True | 2 | GARY | WIN |
| v0_B | Orig_GARY_to_Dest_STL | 0.00 | Infinity | 16.00 | 300.00 | True | 2 | GARY | STL |
| v0_BQ | Orig_GARY_to_Dest_FRE | 0.00 | Infinity | 82.00 | 1100.00 | True | 2 | GARY | FRE |
| v0_Bg | Orig_GARY_to_Dest_LAF | 0.00 | Infinity | 8.00 | 0.00 | True | 2 | GARY | LAF |
| v0_Bw | Orig_CLEV_to_Dest_FRA | 0.00 | Infinity | 27.00 | 0.00 | True | 2 | CLEV | FRA |
| v0_C | Orig_CLEV_to_Dest_DET | 0.00 | Infinity | 9.00 | 1200.00 | True | 2 | CLEV | DET |
| v0_CQ | Orig_CLEV_to_Dest_LAN | 0.00 | Infinity | 12.00 | 600.00 | True | 2 | CLEV | LAN |
| v0_Cg | Orig_CLEV_to_Dest_WIN | 0.00 | Infinity | 9.00 | 400.00 | True | 2 | CLEV | WIN |
| v0_Cw | Orig_CLEV_to_Dest_STL | 0.00 | Infinity | 26.00 | 0.00 | True | 2 | CLEV | STL |
| v0_D | Orig_CLEV_to_Dest_FRE | 0.00 | Infinity | 95.00 | 0.00 | True | 2 | CLEV | FRE |
| v0_DQ | Orig_CLEV_to_Dest_LAF | 0.00 | Infinity | 17.00 | 400.00 | True | 2 | CLEV | LAF |
| v0_Dg | Orig_PITT_to_Dest_FRA | 0.00 | Infinity | 24.00 | 900.00 | True | 2 | PITT | FRA |
| v0_Dw | Orig_PITT_to_Dest_DET | 0.00 | Infinity | 14.00 | 0.00 | True | 2 | PITT | DET |
| v0_E | Orig_PITT_to_Dest_LAN | 0.00 | Infinity | 17.00 | 0.00 | True | 2 | PITT | LAN |
| v0_EQ | Orig_PITT_to_Dest_WIN | 0.00 | Infinity | 13.00 | 0.00 | True | 2 | PITT | WIN |
| v0_Eg | Orig_PITT_to_Dest_STL | 0.00 | Infinity | 28.00 | 1400.00 | True | 2 | PITT | STL |
| v0_Ew | Orig_PITT_to_Dest_FRE | 0.00 | Infinity | 99.00 | 0.00 | True | 2 | PITT | FRE |
| v0_F | Orig_PITT_to_Dest_LAF | 0.00 | Infinity | 20.00 | 600.00 | True | 2 | PITT | LAF |