iterpc (version 0.2.8)

nc_multiset: Calculate the number of r-combinations of a multiset

Description

Calculate the number of r-combinations of a multiset

Usage

nc_multiset(f, r)

Arguments

f

the frequencies of the mutliset

r

the number of object drawn from the multiset

Value

• the number of combinations

Examples

x <- c("a","a","b")
# possible combinations of size 2 are "aa" and "ab".
nc_multiset(table(x), 2) # <- 2