Introduction

When we think about time, we think about years, days, months, hours, minutes, and seconds. Think of any datasets and you will find some attributes which will be in the form of time, especially data related to stock, sales, purchase, profit, and loss. All these have time associated with them. For example, the price of stock in the stock exchange at different points on a given day or month or year. Think of any industry domain, and sales are an important factor; you can see time series in sales, discounts, customers, and so on. Other domains include but are not limited to statistics, economics and budgets, processes and quality control, finance, weather forecasting, or any kind of forecasting, transport, logistics, astronomy, patient study, census analysis, and the list goes on. In simple words, it contains data or observations in time order, spaced at equal intervals...