Function STATFUNCTION(rng, op)
Select Case UCase(op)
Case "SUM"
STATFUNCTION = WorksheetFunction.Sum(rng)
Case "AVERAGE"
STATFUNCTION = WorksheetFunction.Average(rng)
Case "MEDIAN"
STATFUNCTION = WorksheetFunction.Median(rng)
Case "MODE"
STATFUNCTION = WorksheetFunction.Mode(rng)
Case "COUNT"
STATFUNCTION = WorksheetFunction.Count(rng)
Case "MAX"
STATFUNCTION = WorksheetFunction.Max(rng)
Case "MIN"
STATFUNCTION = WorksheetFunction.Min(rng)
Case "VAR"
STATFUNCTION = WorksheetFunction.Var(rng)
Case "STDEV"
STATFUNCTION = WorksheetFunction.StDev(rng)
Case Else
STATFUNCTION = CVErr(xlErrNA)
End Select
End Function