WorksheetFunction.Combin Method
Returns the number of combinations for a given number of items. Use Combin to determine the total possible number of groups for a given number of items.
Namespace: Microsoft.Office.Interop.Excel
Assembly: Microsoft.Office.Interop.Excel (in Microsoft.Office.Interop.Excel.dll)
Syntax
'Declaration
Function Combin ( _
Arg1 As Double, _
Arg2 As Double _
) As Double
'Usage
Dim instance As WorksheetFunction
Dim Arg1 As Double
Dim Arg2 As Double
Dim returnValue As Double
returnValue = instance.Combin(Arg1, Arg2)
double Combin(
double Arg1,
double Arg2
)
Parameters
Arg1
Type: System.DoubleThe number of items.
Arg2
Type: System.DoubleThe number of items in each combination.
Return Value
Type: System.Double
Remarks
Numeric arguments are truncated to integers.
If either argument is nonnumeric, Combin generates an error.
If number < 0, number_chosen < 0, or number < number_chosen, Combin generates an error.
A combination is any set or subset of items, regardless of their internal order. Combinations are distinct from permutations, for which the internal order is significant.
The number of combinations is as follows, where number = n and number_chosen = k:
Figure 1: Number of combinations
.jpg "Number of combinations")
Where:
Figure 2: Equation
.jpg "Equation")