Produces a plot of the inverse AR and MA roots of an ARIMA model. Inverse roots outside the unit circle are shown in red.

# S3 method for Arima plot( x, type = c("both", "ar", "ma"), main, xlab = "Real", ylab = "Imaginary", ... ) # S3 method for ar plot(x, main, xlab = "Real", ylab = "Imaginary", ...) # S3 method for Arima autoplot(object, type = c("both", "ar", "ma"), ...) # S3 method for ar autoplot(object, ...)

x | Object of class “Arima” or “ar”. |
---|---|

type | Determines if both AR and MA roots are plotted, of if just one set is plotted. |

main | Main title. Default is "Inverse AR roots" or "Inverse MA roots". |

xlab | X-axis label. |

ylab | Y-axis label. |

... | Other plotting parameters passed to |

object | Object of class “Arima” or “ar”. Used for ggplot graphics (S3 method consistency). |

None. Function produces a plot

`autoplot`

will produce an equivalent plot as a ggplot object.

Rob J Hyndman & Mitchell O'Hara-Wild

autoplot(fit)autoplot(fit)