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.
Syntax
expression.Combin(Arg1, Arg2)
expression A variable that represents a WorksheetFunction object.
Parameters
| Name | Required/Optional | Data Type | Description |
|---|
| Arg1 | Required | Double | The number of items. |
| Arg2 | Required | Double | The number of items in each combination. |
Return Value
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:
.gif)
where:
.gif)