COMBIN (PQL  xl)
This function calculates the number of possible combinations for a specified number of items
 Library: PQL \ Spreadsheet \ Math & Trig
 Compatibility: Any content (regardless of data source) in the Tabulate spreadsheet module
 Solve: This function can be used with the Solve plugin: both as part of the objective function and constraint functions
Syntax
COMBIN(number, number chosen)
Function Arguments
Name  Description  Type  Optional 
number  Number representing the number of items; if not an integer, the number is truncated; must be positive and greater than or equal to n  Number 

number chosen  Number of items in each possible permutation; if not an integer, the number is truncated; must be positive  Number 

Comments
This function is the same as the Microsoft Excel 'COMBIN' function  using the same inputs, logic and outputs.