Draw A Line In Excel Series Of Experiment

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Therefore, the problem at present is to get the best fit curve for the data, and figure out its equation.

Actually, we can add the best fit linecurve and formula in Excel easily.

Draw A Line In Excel Series Of Experiment

Add best fit linecurve and formula in Excel 2013 or later versions Add best fit linecurve and formula in Excel 2007 and 2010 Add best fit linecurve and formula for multiple sets of data Add best fit linecurve and formula in Excel 2013 or later versions Supposing you have recorded the experiments data as left screenshot shown, and to add best fit line or curve and figure out its equation (formula) for a series of experiment data in Excel 2013, you can do as follows: 1.

In our case, please select the Range A1:B19, and click the Insert Scatter (X, Y) or Bubble Chart Scatter on the Insert tab.

Select the scatter chart, and then click the Add Chart Element Trendline More Trendline Options on the Design tab.

In the opening Format Trendline pane, check the Polynomial option, and adjust the order number in the Trendline Options section, and then check the Display Equation on Chart option.

See below screen shot: Then you will get the best fit line or curve as well as its equation in the scatter chart as above screen shot shown.

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Select the original experiment data in Excel, and then click the Scatter Scatter on the Insert tab.

Select the new added scatter chart, and then click the Trendline More Trendline Options on the Layout tab.

In the coming Format Trendline dialog box, check the Polynomial option, specify an order number based on your experiment data, and check the Display Equation on chart option.

See screenshot: 4.

Click the Close button to close this dialog box.

Add best fit linecurve and formula for multiple sets of data In most cases, you may get multiple sets of experiment data.

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 linecurve and formula in Excel.

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Select the sets of experiment data, and click Insert Scatter Scatter to create a scatter chart.

Now the scatter chart is created.

Keep the scatter chart, and click Kutools Charts Chart Tools Add Trend Lines to Multiple Series.

See screenshot: Now the trendline is added to the scatter chart.

If the trendline does not match with the scatter plots, you can go ahead to adjust the trendline.

In the scatter chart, double click the trendline to enable the Format Trendline pane.

In the Format Trendline pane, tick the trendline types one by one to check which kind of trendlines is the best fit.

Demo: Add best fit linecurve and formula in Excel 2013 or later versions Kutools for Excel includes more than 300 handy tools for Excel, free to try without limitation in 30 days.

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