DAX Math & Trigonometric COMBIN function
Description
Returns the number of combinations for a given number of items.
DAX COMBIN function is new in Excel 2016.
Syntax
COMBIN (<number>, <number_chosen>)
Parameters
Sr.No. | Parameter & Description |
---|---|
1 |
number The number of items. |
2 |
number_chosen The number of items in each combination |
Return Value
A whole number.
Remarks
A combination is any set or subset of items, regardless of their internal order.
If number = n and number_chosen = k, then the number of combinations is given as −
$$\left(\begin{array}{c}n\\ k\end{array}\right)\:=\:\frac{n!}{k!\:(n\:-\:k)}$$
You can use DAX COMBIN function to determine the total possible number of groups for a given number of items.
Numeric parameters are rounded to integers.
If either parameter is non-numeric, COMBIN returns #ERROR.
If number < 0, or number_chosen < 0, or number < number_chosen, COMBIN returns #ERROR.
Example
= COMBIN (6,2) returns 15. = COMBIN (5.6,2) returns 15. = COMBIN (5.4,2) returns 10.