Add precisions

docs/user-guide/solver/static-modeler/04-parameters.md

@@ -439,8 +439,9 @@ _**This section is under construction**_
 - **Required:** no
 - **Default value:** `false`
 - **Usage:** set to `true` to activate writing the raw optimization results, that is
-  - values and reduced costs for each variable
-  - marginal cost for each constraint
+  - For each variable, optimal values (saved in output/output-name/optimal-values-y-w--optim-nb-z.txt) and reduced costs (saved in output/output-name/reduced-costs-y-w--optim-nb-z.txt) 
+  - each constraint, the marginal cost is saved in output/output-name/marinal-costs-y-w--optim-nb-z.txt
+where y is the year number (starting from 1), w is the week number (starting from 1) and z is the optimization index (1 or 2).
 
 This is an advanced option intended to help developers and advanced users better understand their simulation results.
 

src/solver/utils/filename.cpp

@@ -75,11 +75,11 @@ std::string createSolutionFilename(const OptPeriodStringGenerator& optPeriodStri
 std::string createMarginalCostFilename(const OptPeriodStringGenerator& optPeriodStringGenerator,
                                        const unsigned int optNumber)
 {
-    return createOptimizationFilename("marginal-cost", optPeriodStringGenerator, optNumber, "txt");
+    return createOptimizationFilename("marginal-costs", optPeriodStringGenerator, optNumber, "txt");
 }
 
 std::string createReducedCostFilename(const OptPeriodStringGenerator& optPeriodStringGenerator,
                                       const unsigned int optNumber)
 {
-    return createOptimizationFilename("reduced-cost", optPeriodStringGenerator, optNumber, "txt");
+    return createOptimizationFilename("reduced-costs", optPeriodStringGenerator, optNumber, "txt");
 }