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\name{pbetat}
\alias{pbetat}
\title{Bayesian test of a proportion}
\description{
Bayesian test that a proportion is equal to a specified
value using a beta prior}
\usage{
pbetat(p0,prob,ab,data)
}
\arguments{
\item{p0}{value of the proportion to be tested }
\item{prob}{prior probability of the hypothesis}
\item{ab}{vector of parameter values of the beta prior under the alternative hypothesis}
\item{data}{vector containing the number of successes and number of failures}
}
\value{
\item{bf}{the Bayes factor
in support of the null hypothesis}
\item{post}{the posterior probability
of the null hypothesis}
}
\author{Jim Albert}
\examples{
p0=.5
prob=.5
ab=c(10,10)
data=c(5,15)
pbetat(p0,prob,ab,data)
}
\keyword{models}
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