[R] partition functions

[Robin Hankin]

Before I reinvent the wheel, has anyone coded up the partition  
function p()?

[
for any integer p, p(n) is the number of distinct ways
of writing n as the sum of positive integers, with
order not considered.

For 5, we have

5 = 4+1 = 3+2 = 2+2+1 = 2+1+1+1 = 1+1+1+1+1

(ie 6 different ways)

so p(5) = 6.
]


--
Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
European Way, Southampton SO14 3ZH, UK
  tel  023-8059-7743