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

gg_arma(data)

data | A mable containing models with AR and/or MA roots. |
---|

A ggplot object the characteristic roots from ARMA components.

Only models which compute ARMA roots can be visualised with this function.
That is to say, the `glance()`

of the model contains `ar_roots`

and `ma_roots`

.

if (requireNamespace("fable", quietly = TRUE)) { library(fable) library(tsibble) library(dplyr) tsibbledata::aus_retail %>% filter( State == "Victoria", Industry == "Cafes, restaurants and catering services" ) %>% model(ARIMA(Turnover ~ pdq(0,1,1) + PDQ(0,1,1))) %>% gg_arma() }