how to reference cells from sheet in vba for solveroptions

breezer123

New Member
Joined
Jul 13, 2020
Messages
18
Office Version
  1. 365
Platform
  1. Windows
Hi all! Thank you for taking the time to read my question and potentially offer some help!

I am trying to call solver from within a macro in VBA. I would like some of the solveroptions to be user inputs from the sheet. For example, saying solveroptions maxtime:="$J$3" where $J$3 = 1000 instead of having to put the value directly inside of vba solveroptions maxtime:=1000. Is this possible? I am getting a mismatch error on the first solveroptions line. Here is the code.

VBA Code:
Sub solvermacro()

Application.ScreenUpdating = False
Application.ThisWorkbook.Sheets("Calculations").Activate


SolverOk SetCell:="$AL$79", MaxMinVal:=1, ValueOf:=0, ByChange:="$J$9:$J$39", _
    Engine:=1, EngineDesc:="GRG Nonlinear"
SolverAdd CellRef:="$AL$45:$AL$76", Relation:=3, FormulaText:="$J$2"
SolverAdd CellRef:="$J$9:$J$39", Relation:=1, FormulaText:="1.25"
SolverAdd CellRef:="$J$9:$J$39", Relation:=3, FormulaText:="0.75"


SolverOptions MaxTime:="$J$3", Iterations:="$J$4", Precision:=0.1, Convergence:= _
        0.001, StepThru:=False, Scaling:=False, AssumeNonNeg:=True, Derivatives:=1
SolverOptions PopulationSize:=0, RandomSeed:=0, MutationRate:=0.075, Multistart:= _
    False, RequireBounds:=False, MaxSubproblems:=0, MaxIntegerSols:=0, IntTolerance _
    :=1, SolveWithout:=False, MaxTimeNoImp:=30



solversolve
 
End Sub
 

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Worf

Well-known Member
Joined
Oct 30, 2011
Messages
4,126
This example uses cells from column K:

VBA Code:
Sub Macro1()
SolverOk SetCell:="$D$6", MaxMinVal:=[k2], ValueOf:=[k3], _
ByChange:="$B$3:$B$5", Engine:=[k4], EngineDesc:="Simplex LP"
solveroptions maxtime:=[k5]
SolverSolve
End Sub
 

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