Time Series Analysis with Theory, Plots, and Code Part 1

Dimitris Effrosynidis
Towards Data Science
8 min readApr 5, 2020

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A. Some Theory First

1. What is a Time Series?

Time series is a sequence of observations recorded at regular time intervals.

Depending on the frequency of observations, a time series may typically be hourly, daily, weekly, monthly, quarterly and annual. Sometimes, you might have seconds…

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