Statistics and Forecasting
Forecasting in the Tableau Desktop is a powerful tool to extrapolate the data and visualize its trends as well as confidence intervals. In this example, the main question is based on current data, how we could predict and forecast the COVID-19 cases in the upcoming weeks or months. In order to use forecasting in the Tableau Desktop, make sure you are on the Sheet 1 and DateTotal field is aggregated based on weeks: WEEK(DateTotal):
Due to the visualizations of forecasting the number of cases of COVID-19 in four counties of Greenville, Pickens, Anderson, and Oconee, we see that the prediction for Greenville county has the highest variation or lowest confidence. On the other hand, other counties of Pickens, Anderson, and Oconee have higher confidence due to their lower variations.
The workbook to reproduce the visualizations in this section is shared here: https://bit.ly/3n7YY3R