The Linear Regression Channel is a three-line technical indicator used to analyze the upper and lower limits of an existing trend. Linear regression is a statistical tool used to predict the future from past data. It is used to determine when prices may be overextended.Diagram of Linear Regression Channel: -In the above chart it will give the direction of the USDJPY currency pair, here, are the tree line Upper line regression, Middle line regression and Lower line regression use to follow the trend.The linear regression channel consists of a center line that represents the middle of the trend and two outer lines that represent the upper and lower limits of the trend. When prices are trading above or below these levels, it may be an indication that they are overextended and ripe for a reversal.