% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/armaroots.R, R/ggplot.R
\name{plot.Arima}
\alias{plot.Arima}
\alias{plot.ar}
\alias{autoplot.Arima}
\alias{autoplot.ar}
\title{Plot characteristic roots from ARIMA model}
\usage{
\method{plot}{Arima}(x, type = c("both", "ar", "ma"), main,
  xlab = "Real", ylab = "Imaginary", ...)

\method{plot}{ar}(x, main, xlab = "Real", ylab = "Imaginary", ...)

\method{autoplot}{Arima}(object, type = c("both", "ar", "ma"), ...)

\method{autoplot}{ar}(object, ...)
}
\arguments{
\item{x}{Object of class \dQuote{Arima} or \dQuote{ar}.}

\item{type}{Determines if both AR and MA roots are plotted, of if just one
set is plotted.}

\item{main}{Main title. Default is "Inverse AR roots" or "Inverse MA roots".}

\item{xlab}{X-axis label.}

\item{ylab}{Y-axis label.}

\item{...}{Other plotting parameters passed to \code{\link[graphics]{par}}.}

\item{object}{Object of class \dQuote{Arima} or \dQuote{ar}. Used for ggplot
graphics (S3 method consistency).}
}
\value{
None. Function produces a plot
}
\description{
Produces a plot of the inverse AR and MA roots of an ARIMA model. Inverse
roots outside the unit circle are shown in red.
}
\details{
\code{autoplot} will produce an equivalent plot as a ggplot object.
}
\examples{

library(ggplot2)

fit <- Arima(WWWusage, order=c(3,1,0))
plot(fit)
autoplot(fit)

fit <- Arima(woolyrnq,order=c(2,0,0),seasonal=c(2,1,1))
plot(fit)
autoplot(fit)

plot(ar.ols(gold[1:61]))
autoplot(ar.ols(gold[1:61]))

}
\seealso{
\code{\link{Arima}}, \code{\link[stats]{ar}}
}
\author{
Rob J Hyndman & Mitchell O'Hara-Wild
}
\keyword{hplot}