Columbia University

PUAF 8516 – Time Series Analysis Homework 3 - Stationarity

1. For each of the datasets listed below (all included in the R package fpp2): a. plot the relevant time series;

b. describe the most important characteristics of the series;

c. reason why the series might be weakly stationary or not.

a10

arrivals

calls hyndsight marathon melsyd sunspotarea usmelec wmurders