How to Detect Seasonality, Outliers, and Changepoints in Your Time Series

All It Takes is Kats and a Few Lines of Code

Khuyen Tran
Towards Data Science
7 min readAug 7, 2021

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Motivation

Have you ever looked at a time series and wonder if there are any repetitive patterns, outliers, or change points in it?

I asked the same questions when looking at the daily number of users viewing my page from January to August 2021.

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