In my case, the Polynomial trendline fits best. In the Format Trendline pane, tick the trendline types one by one to check which kind of trendlines is the best fit. In the scatter chart, double click the trendline to enable the Format Trendline pane.Ĥ.
If the trendline does not match with the scatter plots, you can go ahead to adjust the trendline.ģ. Now the trendline is added to the scatter chart. Keep the scatter chart, and click Kutools > Charts > Chart Tools > Add Trend Lines to Multiple Series. Select the sets of experiment data, and click Insert > Scatter > Scatter to create a scatter chart.Ģ. Full feature free trial 30-day, no credit card required! Free Trial Now!ġ. Kutools for Excel- Includes more than 300 handy tools for Excel. You can show these sets of data in a scatter chart simultaneously, and then use an amazing chart tool – Add Trend Lines to Multiple Series provided by Kutools for Excel – to add the best fit line/curve and formula in Excel. In most cases, you may get multiple sets of experiment data.