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A good example of an exponential curve is the decay in the entire wild tiger population on the earth. Please note that an exponential trendline cannot be created for data that contains zeros or negative values.

Trend line formula trendline type is often used in sciences, for example to visualize a human population growth or decline in wildlife populations. Exponential trendline The exponential trendline is a curved line that illustrates a rise or fall in data values at an increasing rate, therefore the line is usually more curved at one side. For example, the following linear trendline shows a steady increase in sales over 6 months. Typically, a linear trendline describes a continuous rise or fall over time. Linear trendline The linear trend line is best to be used with linear data sets when the data points in a chart resemble a straight line.

R-squared value measures the trendline reliability - the nearer R2 is to 1, the better the trendline fits the data.īelow, you will find a brief description of each trendline type with chart examples.

Additionally, Microsoft Excel allows displaying a trendline equation and R-squared value in a chart: Trendline equation is a formula that finds a line that best fits the data points. Excel trendline equation is wrong - reasons and fixes Excel trendline types When adding a trendline in Excel, you have 6 different options to choose from.