Last data update: 2014.03.03

R: Calculate multinomial coefficient
multichooseR Documentation

Calculate multinomial coefficient

Description

This function calculates the multinomial coefficient

(∑ n_j)! / ∏ n_j!.

where n_j's are the number of multiplicities in the multiset.

Usage

multichoose(n, bigz = FALSE)

Arguments

n

a vector of group sizes

bigz

use gmp's Big Interger

Value

multinomial coefficient

Examples

# (3+1+1)!/ (3! 1! 1!) = 20
multichoose(c(3,1,1))

Results