Extend a trendline to forecast future or past trendsĪ trendline, also referred to as a line of best fit, is a straight or curved line in a chart that shows the general pattern or overall direction of the data.How to insert multiple trendlines in the same chart.Nevertheless, there are a few little secrets that make a big difference, and I will share them with you in a moment. Luckily, Microsoft Excel has made inserting a trend line very easy, especially in newer versions. This can be done by adding a trendline to a chart. When plotting data in a graph, you may often want to visualize the general trend in your data. The tutorial explains how to do trend analysis in Excel: how to insert a trendline in a chart, display its equation and get the slope of a trendline.
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