TradingChart[{"MSFT",{{2009,1,1},{2009,3,31}}},{"RaffRegressionChannel"}]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {Related Indicator Types:  (RefLink[LinearRegressionTrendlines, paclet:ref/indicator/LinearRegressionTrendlines])  ▪  (RefLink[StandardDeviationChannels, paclet:ref/indicator/StandardDeviationChannels])  ▪  (RefLink[BollingerBands, paclet:ref/indicator/BollingerBands])  ▪  (RefLink[KeltnerChannels, paclet:ref/indicator/KeltnerChannels])}})}})