Discovery of Seasonality in Time Series

A Fourier transform analysis using R

Government revenues and expenditures, traveler flows, and export and import values are time series related to economic phenomena. By their nature, they are subject to trends, breaks in structure, and other elements. These factors can generate false conclusions when trying to find the seasonality that best characterizes such time series. In the following paragraphs, we will analyze a case that, at first, may bring some frustration but, in the …

dataviz discovery fourier-transform rstats seasonality series stem time time series time-series-analysis