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All Products. The equation displayed for a trendline on an xy scatter chart is incorrect. When you manually substitute values for the x variable, Microsoft Excel then plots the trendline incorrectly. Note The trendline formula should only be used when your chart is an XY Scatter chart. This chart plots both the X axis and the Y axis as values. Line, Column, and Bar charts plot only the Y axis as values.

## Trendlines, Error Bars, and Grid Lines (Mac)

The X axis is plotted only as a linear series in these chart types, regardless of what the labels actually are. Therefore, the trendline will be inaccurate if displayed on these types of charts. This behavior is by design. Microsoft Excel plots trendlines correctly. However, the equation that is displayed may give incorrect results when you manually type x values. For appearance, each x value is rounded in the number of significant digits that are displayed in the chart. This behavior allows the equation to occupy less space in the chart area. However, the accuracy of the chart is significantly reduced, which can cause a trend to appear to be incorrect.

To work around this behavior, increase the digits in the trendline equation by increasing the number of decimal places that are displayed. To do this, follow these steps: In the chart, select the trendline equation.

## How do I get the trendline equation and R… - Apple Community

On the Format menu, click Selected Data Labels. Click the Number tab, and then click Number in the Category list. In the Decimal places box, increase the number of decimal places to 30 so that you can see all the decimal places.

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Your feedback will help us improve the support experience. Jun 14, Trend lines apply only to charts that plot a y value against an x value. All charts in the list in Numbers are Category charts except 2—the bubble chart and the scatter chart.

The example below is a scatter chart, with data points connected by a curve, and a logarithmic trend line calculated from the supplied data. As can be seen in the upper left of the chart, the trend line equation can be displayed by checking the "Show Equation"box in the Chart Inspector. How do I get the trendline equation and R2 value for other functions beside linear to show up More Less. Communities Contact Support. Sign in. Browse Search.

## Extracting equations from trendline in Excel

Ask a question. User profile for user: How do I get the trendline equation and R2 value for other functions beside linear to show up I went to my chem lab today and the professor showed us how to do all of it on excel. More Less.