This article discusses the patterns and characteristics of time series data, including seasonality and trend. It also explores how time series analysis differs from linear regression and the requirements of the forecasting process. References are provided for further reading.
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2 Patterns of time series data Patterns in the time series data can be clarified with regard to the basic classes of the componentssuchasseasonalityandtrend.Thepersonwhoconductsthestudyreveals methodical linear generally or with the nonlinear constituent that also alters over the time. These two all-purpose lessons in the time series data may coexist in real life data. For instance, company can grow over the years but the organization can go after consistent seasonal patterns (Angers, Biswas and Maiti, 2016). Characteristics of time series data The measurements in the time series data are based on the regular time intervals most of the time. Explaining the time series characteristics include a list of the annotations where ordering matters a lot. This means that ordering is quite important in the time series data due to which reliance and altering of the order could also modify the connotation of the data gathered in the time series data (Pavlyshenko, 2019). How does this differ from other statistical methods such as linear regression? This differs from other arithmetical methods such as linear regression because time series data and psychoanalysis have different focus where components models are one of the examples. Linear regression advocates the things like t or powers of t with the intention to find out the trends. In a typical manner, time series analysis proceed with the following lines such as a researcher can find a trend, eliminate it and fit a model associated with the residuals. Hence, the researcher might also want to check out the time series as well as non-time series and will be able to carry out analysis related to the time series data with the training limited to this method only (Quennevillle and Gagne, 2013). What is required in the forecasting process? The process of forecasting is to make predictions based on past and present information and based on the future also. These predictions are basically based on the analysis of trends. In majority of the cases, the information should be updated with the intention to predict the value as accurate as feasible for the selected method in statistics. On the other hand, in some of the cases, the information can be used to forecast the interest of the variable which itself is forecasted
3 actually (Rafiuzaman, 2014). The commonplace example is the estimation of the variable of interest at the future data. The process of forecasting might also help management to take accurate and correct decisions. This forecasting process provide logical basis to determine and plan in advance for the future of the operations in the business. Hence, this process for forecasting is required to facilitate correct decisions based on operations of the business which also provide information on sales, material, personal and other requirements.
4 References Angers, J., Biswas, A., & Maiti, R. (2016). Bayesian Forecasting for Time Series of Categorical Data.Journal Of Forecasting,36(3), 217-229. doi: 10.1002/for.2426 Pavlyshenko,B.(2019).Machine-LearningModelsforSalesTimeSeries Forecasting.Data,4(1), 15. doi: 10.3390/data4010015 Quennevillle,B.,&Gagné,C.(2013).Testingtimeseriesdatacompatibilityfor benchmarking.InternationalJournalOfForecasting,29(4),754-766.doi: 10.1016/j.ijforecast.2011.10.001 Rafiuzaman, M. (2014). Forecasting Chaotic Stock Market Data using Time Series Data Mining.InternationalJournalOfComputerApplications,101(10),27-34.doi: 10.5120/17725-8169