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\name{sterling}
\alias{sterling}
\title{Sterling Ratio}
\description{
This function computes the Sterling ratio of the univariate time series
(or vector) \code{x}.
}
\usage{
sterling(x)
}
\arguments{
\item{x}{a numeric vector or univariate time series corresponding to a
portfolio's cumulated returns.}
}
\details{
The Sterling ratio is defined as a portfolio's overall return divided
by the portfolio's \code{\link{maxdrawdown}} statistic. In finance the
Sterling Ratio represents a measure of the portfolio's risk-adjusted
return.
}
\value{
a double representing the Sterling ratio.
}
\author{A. Trapletti}
\seealso{
\code{\link{maxdrawdown}}, \code{\link{sharpe}}
}
\examples{
data(EuStockMarkets)
dax <- log(EuStockMarkets[,"DAX"])
ftse <- log(EuStockMarkets[,"FTSE"])
sterling(dax)
sterling(ftse)
}
\keyword{ts}
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