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 # SuperSmoother
 
+This indicator was taken from chapter 3 of *Cycle Analytics for Traders* (2013) by John F. Ehlers.
+
+In Ehlers' own words:
+
+> *A SuperSmoother filter is used anytime a moving average of any type would otherwise be used, with the result that the SuperSmoother filter output would have substantially less lag for an equivalent amount of smoothing produced by the moving average.*
+
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