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\name{durations}
\alias{durations}
\alias{durationSeries} % removed
\title{Durations from a 'timeSeries'}
\description{
Computes durations from an object of class \code{"timeSeries"}.
}
\usage{
durations(x, trim = FALSE, units = c("secs", "mins", "hours", "days"))
}
\arguments{
\item{x}{
an object of class \code{"timeSeries"}.
}
\item{trim}{
a logical value. By default \code{TRUE}, the first missing
observation in the return series will be removed.
}
\item{units}{
a character value or vector which allows to set the units in which
the durations are measured. By default durations are measured in
seconds.
}
}
\details{
Durations measure how long it takes until we get the next record in a
\code{timesSeries} object. We return a time series in which for each
time stamp we get the length of the period from when we got the last
record. This period is measured in length specified by the argument
\code{units}, for daily data use \code{units="days"}.
}
\value{
an object of class \code{"timeSeries"}
}
\examples{
## Compute Durations in days for the MSFT Sereries -
head(durations(MSFT, units = "days"))
head(durations(MSFT, trim = TRUE, units = "days"))
## The same in hours -
head(durations(MSFT, trim = TRUE, units = "hours"))
}
\keyword{chron}
|
