+++ /dev/null
-\name{theta.h}
-\alias{theta.h}
-\title{Population Parameter THETA using Homozygosity}
-\usage{
-theta.h(x, standard.error = FALSE)
-}
-\arguments{
- \item{x}{a vector or a factor.}
- \item{standard.error}{a logical indicating whether the standard error
- of the estimated theta should be returned (\code{TRUE}), the default
- being \code{FALSE}.}
-}
-\description{
- This function computes the population parameter THETA using the
- homozygosity (or mean heterozygosity) from gene frequencies.
-}
-\value{
- a numeric vector of length one with the estimated theta (the default),
- or of length two if the standard error is returned
- (\code{standard.error = TRUE}).
-}
-\details{
- The argument \code{x} can be either a factor or a vector. If it is a
- factor, then it is taken to give the individual alleles in the
- population. If it is a numeric vector, then its values are taken to be
- the numbers of each allele in the population. If it is a non-numeric
- vector, it is a coerced as a factor.
-
- The standard error is computed with an approximation due to
- Chakraborty and Weiss (1991).
-}
-\references{
- Zouros, E. (1979) Mutation rates, population sizes and amounts of
- electrophoretic variation at enzyme loci in natural
- populations. \emph{Genetics}, \bold{92}, 623--646.
-
- Chakraborty, R. and Weiss, K. M. (1991) Genetic variation of the
- mitochondrial DNA genome in American Indians is at mutation-drift
- equilibrium. \emph{American Journal of Human Genetics}, \bold{86}, 497--506.
-}
-\author{Emmanuel Paradis \email{Emmanuel.Paradis@mpl.ird.fr}}
-\seealso{
- \code{\link{heterozygosity}}, \code{\link{theta.s}}, \code{\link{theta.k}}
-}
-\keyword{manip}
-\keyword{univar}