forensim (version 4.3)

N2Exact: Calculates exact allele distribution for 2 contributors

Description

The distribution of N, the number of alleles showing is calculated exactly assuming 2 contributors. Theta-correction is not implemented. The function may be used to check accuracy of simulations and indicate required number of simulations for one example.

Usage

N2Exact(p)

Arguments

p

vector of allele frequencies. Must sum to 1. Default: for uniformly distrubted alleles.

Value

Returns(P(N=i) for i=1,2,3,4

Examples

#Distribution for a marker with 20 alles of equal frequency
N2Exact(p=rep(0.05,20))