Ver. 1.00.a by @Xel_Arjona
This is an approach to get in one single indicator both of the best mathematical worlds in bands for technical analysis:
From within the STATISTICAL side, everybody well known the wide use of the STANDARD DEVIATION with a Multiplier Factor from within a Rolling Back MEDIAN ( ) best known as the famous and widely used "Bollinger Band".
From within the REGRESSION ANALYSIS side, the relevant importance of the (of the estimate) with a Multiplier Factor from within an Ordinary Least Squares Curve generated from the last rolling back sample of the series. Jon Andersen use this method to construct it's Standard Error Bands.
Both indicators are in sync from a unique Rolling Back Period window. From this perspective, the Regression Analysis tend to "catch" faster moves and while the Statistical band complement them perfectly for mid to long term move confirmation.