![]() ![]() This example shows a lot of variability in the data. ![]() In other words, we want to use the historic data to predict future data. (For a refresher on making charts, you can check out: How to Make a Column Chart in Excel or How to Create Graphs in Excel.) However, our purpose is to create a time series forecast. Let’s open a blank Excel spreadsheet and fill in some data!Īt this point, you could make a line or bar chart for this data if you wanted to. Then you would create a time series for enrollment. What makes a time series different than other data series is that the values correspond to different points in time.įor example, suppose you wanted to track the number of students in a particular class from semester to semester over a number of years. You would create a time series in pretty much the same way that you would enter data for any purpose in Excel. In this article, you will learn about Excel’s built-in features that allow you to forecast (or extrapolate) from time series data to predict future values. ![]() Three-day cone of uncertainty forecast of Hurricane Rita path as of 10 PM CDT, September 22, 2005.
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