This function computes the expected heterozygosity (Hs) within
populations of a genpop object. This function is
available for codominant markers (@type="codom") only. Hs is
commonly used for measuring within population genetic diversity (and
as such, it still has sense when computed from haploid data).
Usage
Hs(x, truenames=TRUE)
Arguments
x
an object of class genpop.
truenames
a logical indicating whether true labels (as opposed
to generic labels) should be used to name the output.
Value
A vector of Hs values (one value per population).
encoding
UTF-8
Details
Let m(k) be the number of alleles of locus k, with a
total of K loci. We note $f_i$ the allele frequency of
allele i in a given population. Then, $Hs$ is given for a
given population by:
$\frac{1}{K} \sum_{k=1}^K (1 - \sum_{i=1}^{m(k)} f_i^2)$