Defines a basic Solver model. Equivalent to clicking Solver in the Data | Analysis group and then specifying options in the Solver Parameters dialog box.
The Solver add-in is not enabled by default. Before you can use this function, the Solver add-in must be enabled and installed. After the Solver add-in is installed, you must establish a reference to the Solver add-in. For information about how to do that, see Before Using The Solver VBA Functions.
Syntax
SolverOk ( SetCell, MaxMinVal, ValueOf, ByChange, Engine, EngineDesc)
SetCell Optional Variant. Refers to a single cell on the active worksheet. Corresponds to the Set Target Cell box in the Solver Parameters dialog box. MaxMinVal Optional Variant. Corresponds to the Max, Min, and Value options in the Solver Parameters dialog box.
| MaxMinVal | Specifies |
|---|---|
| 1 | Maximize |
| 2 | Minimize |
| 3 | Match a specific value |
ValueOf Optional Variant. If MaxMinVal is 3, you must specify the value to which the target cell is matched.
ByChange Optional Variant. The cell or range of cells that will be changed so that you'll obtain the desired result in the target cell. Corresponds to the By Changing Cells box in the Solver Parameters dialog box.
Engine Optional Variant. The Solving method that should be used to solve the problem: 2 for the Simplex LP method, 1 for the GRG Nonlinear method, or 3 for the Evolutionary method. Corresponds to the Select a Solving Method dropdown list in the Solver Parameters dialog box.
EngineDesc Optional Variant. An alternate way to specify the Solving method that should be used to solve the problem as a string: "Simplex LP", "GRG Nonlinear", or "Evolutionary". Corresponds to the Select a Solving Method dropdown list in the Solver Parameters dialog box.
Example
The SolverOK function defines a problem by specifying the SetCell, MaxMinVal, and ByChange arguments.
Sub SolverDemo()
Worksheets("Sheet1").Activate
Range("F4").Formula = "=SUM(C4:E4)"
Range("F5").Formula = "=SUM(C5:E5)"
Range("F6").Formula = "=SUM(C6:E6)"
Range("F7").Formula = "=SUM(F4:F6)"
SolverReset
SolverOptions precision:=0.001
SolverOK SetCell:=Range("F7"), MaxMinVal:=3, ValueOf:=50, ByChange:=Range("C4:E6")
SolverAdd CellRef:=Range("F4:F6"), Relation:=1, FormulaText:=100
SolverAdd CellRef:=Range("C4:E6"), Relation:=3, FormulaText:=0
SolverAdd CellRef:=Range("C4:E6"), Relation:=4
SolverSolve UserFinish:=False
SolverSave SaveArea:=Range("A33")
End Sub