Exercise

# Order of earthquakes

In this exercise you will use the ACF and PACF plots to decide on the most appropriate order to forecast the earthquakes time series.

AR(p) | MA(q) | ARMA(p,q) | |
---|---|---|---|

ACF | Tails off | Cuts off after lag q | Tails off |

PACF | Cuts off after lag p | Tails off | Tails off |

The earthquakes time series `earthquake`

, the `plot_acf()`

, and `plot_pacf()`

functions, and the `SARIMAX`

model class are available in your environment.

Instructions 1/3

**undefined XP**

- Plot the ACF and the PACF of the earthquakes time series
`earthquake`

up to a lag of 15 steps and don't plot the zeroth lag.