The chart trendline method is a quick way to perform a very simple linear regression and fit a curve to a series of data, but it has two significant downfalls. Linear Regression with the LINEST function Now we know that the data set shown above has a slope of 165.4 and a y-intercept of -79.85. We’d follow these 6 steps (in Excel 2016): Let’s say we have the data set below, and we want to quickly determine the slope and y-intercept of a best-fit line through it. You can go from raw data to having the slope and intercept of a best-fit line in 6 clicks (in Excel 2016). Add the equation to the trendline and you have everything you need. When you need to get a quick and dirty linear equation fit to a set of data, the best way is to simply create an XY-chart (or “Scatter Chart”) and throw in a quick trendline. Simple Linear Regression with Excel Charts Simple Linear Regression Analysis with the Analysis Toolpak.Regression Analysis in Excel with the Analysis Toolpak Add-In.Linear Regression with the LINEST function.Simple Linear Regression with Excel Charts.
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