plot.Arima {forecast} | R Documentation |
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 class 'Arima' plot(x, type = c("both", "ar", "ma"), main, xlab = "Real", ylab = "Imaginary", ...) ## S3 method for class 'ar' plot(x, main, xlab = "Real", ylab = "Imaginary", ...) ## S3 method for class 'Arima' autoplot(object, type = c("both", "ar", "ma"), ...) ## S3 method for class '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). |
autoplot
will produce an equivalent plot as a ggplot object.
None. Function produces a plot
Rob J Hyndman & Mitchell O'Hara-Wild
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]))