Oftentimes, you’ll want to fit a line to a bunch of data points. This tutorial will show you how to do that quickly and easily using open-source software, R.
How to Create Scatter with Smooth Lines Chart in Excel
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Karl Arao's TiddlyWiki
Locally weighted scatterplot smoothing fitted with a smooth curve to
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FlowingData Data Visualization and Statistics
FlowingData Data Visualization and Statistics
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