Notice that the equation of the line and R-square values are now displayed on the chart and that the trend line is a more prominent element of the chart. When you are done, click the Close button on the Format Trend line window and notice the changes to your scatter plot. Just to demonstrate that the option exists, change the End Type option to an arrow. In this window, change the Width value from 0.75 pt to about 3 pt and change the Dash Type to the Square Dot option (third one down on the drop down menu). On the left hand side of the Format Trend line window, click on the Line Style option. After all, the default trendline is only one pixel wide and can sometimes disappear among the colors and other elements on the chart. Let’s say that we want our trendline to be displayed more prominently on the chart. You can find and select these options at the bottom of the window. One of the more popular options people use when adding a trendline to Excel is to display both the equation of the line and the R-squared value right on the chart. Excel will once again open up the Format Trend line window. To format your newly-created trend line, begin by right clicking on the line and selecting Format Trend line from the menu. In the next section, we will discuss some of the more popular changes you can make to your trendline to make it stand out. For now, leave the default Linear option selected.Ĭlick the Close button and your chart should now be displaying a linear regression trendline.Īs with all things Microsoft Office, you can format your trendline to look exactly as you want. Notice that you can addĪn Exponential, Linear, Logarithmic, Polynomial, Power, or Moving Average trend/regression type of line. This window contains many options for adding a trend line into an Excel scatter plot.
You should now be looking at the Format Trend line window. Once you have selected the data points, right click on any one data point and choose Add a Trend line from the menu. You will know that you have selected the data point when all of the data points are selected. This can be tricky because there are many elements of the chart you can click on and edit. Begin by clicking once on any data point in your scatter plot. Now that you have a scatter plot in your Excel worksheet, you can now add your trend line. You should now have a scatter plot with your data represented in the chart. Then, click on the Insert tab on the Ribbon and locate the Charts section.Ĭlick on the button labeled Scatter and then select the button from the menu titled Scatter with Only Markers. Suppose you have two columns of data in Excel and you want to insert a scatter plot to examine the relationship between the two variables.īegin by selecting the data in the two columns.
We continue from the earlier article “Using Excel : 2010 Linear Regression Analysis”
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