![]() ![]() ![]() ![]() Tip: visit our page about forecasting to learn more about these functions. The FORECAST.ETS function in Excel predicts a future value using Exponential Triple Smoothing, which takes into account seasonality. This function predicts the same future values.ħ. Instead of using this equation, you can use the FORECAST.LINEAR function in Excel. You can verify this by using the equation. The trendline predicts 120 sold Wonka bars in period 13. The closer to 1, the better the line fits the data. The R-squared value equals 0.9295, which is a good fit. It fits a straight line (using the method of least squares) to the arrays knownys and knownxs. Check "Display Equation on chart" and "Display R-squared value on chart".Įxplanation: Excel uses the method of least squares to find a line that best fits the points. function returns values along a linear trend. Specify the number of periods to include in the forecast. Click the + button on the right side of the chart, click the arrow next to Trendline and then click More Options.ģ. This example teaches you how to add a trendline to a chart in Excel.Ģ. ![]()
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