Cleverly Using Excel to Generate Fitting Functions

Mar 26, 2023343

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This article explains how to use Excel to generate a fitting function. The steps include inputting data into a spreadsheet, selecting the data range, inserting a scatter plot with a trendline, and displaying the equation and R-squared value of the fitted line.

Cleverly Using Excel to Generate Fitting Functions#

Methods for fitting a line in Excel:

Enter the data in the spreadsheet, with X values in the left column and Y values in the right column. Then, select the data range.

In the toolbar, select "Insert" - "Chart". Choose the scatter plot with straight lines and data markers, and a line graph will appear.

Right-click on the line and select "Add Trendline" from the options.

In the small window that pops up on the right, select "Linear". Drag the progress bar down and choose "Display Equation" - "Display R-squared value" to show the fitted equation.