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\name{arma-methods}
\alias{arma-methods}
\alias{coef.arma}
\alias{vcov.arma}
\alias{residuals.arma}
\alias{fitted.arma}
\alias{print.arma}
\alias{plot.arma}
\title{Methods for Fitted ARMA Models}
\description{
Methods for fitted ARMA model objects.
}
\usage{
\method{coef}{arma}(object, \dots)
\method{vcov}{arma}(object, \dots)
\method{residuals}{arma}(object, \dots)
\method{fitted}{arma}(object, \dots)
\method{print}{arma}(x, digits = max(3, getOption("digits") - 3), \dots)
\method{plot}{arma}(x, ask = interactive(), \dots)
}
\arguments{
\item{object, x}{an object of class \code{"arma"}; usually, a result
of a call to \code{\link{arma}}.}
\item{digits}{see \code{\link{printCoefmat}}.}
\item{ask}{Should the \code{plot} method work interactively? See
\code{\link{interactive}}.}
\item{\dots}{further arguments passed to or from other methods.}
}
\value{
For \code{coef}, a numeric vector; for \code{vcov}, a numeric matrix;
for \code{residuals} and \code{fitted} a univariate time series;
for \code{plot} and \code{print}, the fitted ARMA model object.
}
\author{
A. Trapletti
}
\seealso{
\code{\link{arma}}
}
\keyword{models}
\keyword{ts}
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